Question

我目前正在开发一个需要多个“危险”权限的应用程序。因此，我尝试在Android Marshmallow（API级别23）中添加“请求许可”，但无法找到如何执行此操作。

如何在我的应用中使用新的权限模型申请权限？

Answer 1

使用以下代码打开对话框：

 ActivityCompat.requestPermissions(MainActivity.this,
                    new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
                    1);

获取活动结果如下：

@Override
public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 1: {

          // If request is cancelled, the result arrays are empty.
          if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay! Do the
                // contacts-related task you need to do.          
            } else {

                // permission denied, boo! Disable the
                // functionality that depends on this permission.
                Toast.makeText(MainActivity.this, "Permission denied to read your External storage", Toast.LENGTH_SHORT).show();
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
}

更多信息：https://developer.android.com/training/permissions/requesting.html

Answer 2

这个结构我用来检查我的应用是否有权限，而不是请求它是否没有权限。所以在我想要检查的主代码中写下以下内容：

int MyVersion = Build.VERSION.SDK_INT;
if (MyVersion > Build.VERSION_CODES.LOLLIPOP_MR1) {
                if (!checkIfAlreadyhavePermission()) {
                    requestForSpecificPermission();
                }
}

模块checkIfAlreadyhavePermission（）实现为：

private boolean checkIfAlreadyhavePermission() {
    int result = ContextCompat.checkSelfPermission(this, Manifest.permission.GET_ACCOUNTS);
    if (result == PackageManager.PERMISSION_GRANTED) {
        return true;
    } else {
        return false;
    }
}

模块requestForSpecificPermission（）实现为：

private void requestForSpecificPermission() {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.GET_ACCOUNTS, Manifest.permission.RECEIVE_SMS, Manifest.permission.READ_SMS, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 101);
}

和覆盖活动：

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    switch (requestCode) {
        case 101:
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                //granted
            } else {
                //not granted
            }
            break;
        default:
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }
}

有关详细信息，请参阅此链接：http://revisitingandroid.blogspot.in/2017/01/how-to-check-and-request-for-run-time.html

Answer 3

我使用了谷歌开发者编写的这个包装器（推荐）。它超级易用。

https://github.com/googlesamples/easypermissions

处理检查并在需要时请求许可的功能

public void locationAndContactsTask() {
    String[] perms = { Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.READ_CONTACTS };
    if (EasyPermissions.hasPermissions(this, perms)) {
        // Have permissions, do the thing!
        Toast.makeText(this, "TODO: Location and Contacts things", Toast.LENGTH_LONG).show();
    } else {
        // Ask for both permissions
        EasyPermissions.requestPermissions(this, getString(R.string.rationale_location_contacts),
                RC_LOCATION_CONTACTS_PERM, perms);
    }
}

快乐编码：）

Answer 4

从Android Marshmallow开始，我们需要请求用户获取特定权限。如果已经给出了许可，我们也可以通过代码查看。以下是常用权限列表：

<强> android.permission-group.CALENDAR


android.permission.READ_CALENDAR

android.permission.WRITE_CALENDAR




<强> android.permission-group.CAMERA


android.permission.CAMERA




<强> android.permission-group.CONTACTS


android.permission.READ_CONTACTS

android.permission.WRITE_CONTACTS

android.permission.GET_ACCOUNTS




<强> android.permission-group.LOCATION


android.permission.ACCESS_FINE_LOCATION

android.permission.ACCESS_COARSE_LOCATION




<强> android.permission-group.MICROPHONE


android.permission.RECORD_AUDIO




<强> android.permission-group.PHONE


android.permission.READ_PHONE_STATE

android.permission.CALL_PHONE

android.permission.READ_CALL_LOG

android.permission.WRITE_CALL_LOG

android.permission.ADD_VOICEMAIL

android.permission.USE_SIP

android.permission.PROCESS_OUTGOING_CALLS




<强> android.permission-group.SENSORS


android.permission.BODY_SENSORS




<强> android.permission-group.SMS


android.permission.SEND_SMS

android.permission.RECEIVE_SMS

android.permission.READ_SMS

android.permission.RECEIVE_WAP_PUSH

android.permission.RECEIVE_MMS

android.permission.READ_CELL_BROADCASTS




<强> android.permission-group.STORAGE


android.permission.READ_EXTERNAL_STORAGE

android.permission.WRITE_EXTERNAL_STORAGE

以下是检查权限的示例代码：

if (ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_CALENDAR) != PackageManager.PERMISSION_GRANTED) {
    if (ActivityCompat.shouldShowRequestPermissionRationale((Activity) context, Manifest.permission.WRITE_CALENDAR)) {
        AlertDialog.Builder alertBuilder = new AlertDialog.Builder(context);
        alertBuilder.setCancelable(true);
        alertBuilder.setMessage("Write calendar permission is necessary to write event!!!");
        alertBuilder.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
            @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
            public void onClick(DialogInterface dialog, int which) {
                ActivityCompat.requestPermissions((Activity)context, new String[]{Manifest.permission.WRITE_CALENDAR}, MY_PERMISSIONS_REQUEST_WRITE_CALENDAR);
            }
        });
    } else {
        ActivityCompat.requestPermissions((Activity)context, new String[]{Manifest.permission.WRITE_CALENDAR}, MY_PERMISSIONS_REQUEST_WRITE_CALENDAR);
    }
}

Answer 5

我在Activity或Fragment

中的请求运行时权限类

它还可以帮助您显示基本原理或打开设置以在用户拒绝权限（有/无Never ask again）选项后启用权限

class RequestPermissionHandler(private val activity: Activity? = null,
                               private val fragment: Fragment? = null,
                               private val permissions: Set<String> = hashSetOf(),
                               private val listener: Listener? = null
) {
    private var hadShowRationale: Boolean = false

    fun requestPermission() {
        hadShowRationale = showRationaleIfNeed()
        if (!hadShowRationale) {
            doRequestPermission(permissions)
        }
    }

    fun retryRequestDeniedPermission() {
        doRequestPermission(permissions)
    }

    private fun showRationaleIfNeed(): Boolean {
        val unGrantedPermissions = getPermission(permissions, Status.UN_GRANTED)
        val permanentDeniedPermissions = getPermission(unGrantedPermissions, Status.PERMANENT_DENIED)
        if (permanentDeniedPermissions.isNotEmpty()) {
            val consume = listener?.onShowSettingRationale(unGrantedPermissions)
            if (consume != null && consume) {
                return true
            }
        }

        val temporaryDeniedPermissions = getPermission(unGrantedPermissions, Status.TEMPORARY_DENIED)
        if (temporaryDeniedPermissions.isNotEmpty()) {
            val consume = listener?.onShowPermissionRationale(temporaryDeniedPermissions)
            if (consume != null && consume) {
                return true
            }
        }
        return false
    }

    fun requestPermissionInSetting() {
        val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
        val packageName = activity?.packageName ?: run {
            fragment?.requireActivity()?.packageName
        }
        val uri = Uri.fromParts("package", packageName, null)
        intent.data = uri
        activity?.apply {
            startActivityForResult(intent, REQUEST_CODE)
        } ?: run {
            fragment?.startActivityForResult(intent, REQUEST_CODE)
        }
    }

    fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>,
                                   grantResults: IntArray) {
        if (requestCode == REQUEST_CODE) {
            for (i in grantResults.indices) {
                if (grantResults[i] == PackageManager.PERMISSION_GRANTED) {
                    markNeverAskAgainPermission(permissions[i], false)
                } else if (!shouldShowRequestPermissionRationale(permissions[i])) {
                    markNeverAskAgainPermission(permissions[i], true)
                }
            }
            var hasShowRationale = false
            if (!hadShowRationale) {
                hasShowRationale = showRationaleIfNeed()
            }
            if (hadShowRationale || !hasShowRationale) {
                notifyComplete()
            }
        }
    }

    fun onActivityResult(requestCode: Int) {
        if (requestCode == REQUEST_CODE) {
            getPermission(permissions, Status.GRANTED).forEach {
                markNeverAskAgainPermission(it, false)
            }
            notifyComplete()
        }
    }

    fun cancel() {
        notifyComplete()
    }

    private fun doRequestPermission(permissions: Set<String>) {
        activity?.let {
            ActivityCompat.requestPermissions(it, permissions.toTypedArray(), REQUEST_CODE)
        } ?: run {
            fragment?.requestPermissions(permissions.toTypedArray(), REQUEST_CODE)
        }
    }

    private fun getPermission(permissions: Set<String>, status: Status): Set<String> {
        val targetPermissions = HashSet<String>()
        for (p in permissions) {
            when (status) {
                Status.GRANTED -> {
                    if (isPermissionGranted(p)) {
                        targetPermissions.add(p)
                    }
                }
                Status.TEMPORARY_DENIED -> {
                    if (shouldShowRequestPermissionRationale(p)) {
                        targetPermissions.add(p)
                    }
                }
                Status.PERMANENT_DENIED -> {
                    if (isNeverAskAgainPermission(p)) {
                        targetPermissions.add(p)
                    }
                }
                Status.UN_GRANTED -> {
                    if (!isPermissionGranted(p)) {
                        targetPermissions.add(p)
                    }
                }
            }
        }
        return targetPermissions
    }

    private fun isPermissionGranted(permission: String): Boolean {
        return activity?.let {
            ActivityCompat.checkSelfPermission(it, permission) == PackageManager.PERMISSION_GRANTED
        } ?: run {
            ActivityCompat.checkSelfPermission(fragment!!.requireActivity(), permission) == PackageManager.PERMISSION_GRANTED
        }
    }

    private fun shouldShowRequestPermissionRationale(permission: String): Boolean {
        return activity?.let {
            ActivityCompat.shouldShowRequestPermissionRationale(it, permission)
        } ?: run {
            ActivityCompat.shouldShowRequestPermissionRationale(fragment!!.requireActivity(), permission)
        }
    }

    private fun notifyComplete() {
        listener?.onComplete(getPermission(permissions, Status.GRANTED), getPermission(permissions, Status.UN_GRANTED))
    }

    private fun getPrefs(context: Context): SharedPreferences {
        return context.getSharedPreferences("SHARED_PREFS_RUNTIME_PERMISSION", Context.MODE_PRIVATE)
    }

    private fun isNeverAskAgainPermission(permission: String): Boolean {
        return getPrefs(requireContext()).getBoolean(permission, false)
    }

    private fun markNeverAskAgainPermission(permission: String, value: Boolean) {
        getPrefs(requireContext()).edit().putBoolean(permission, value).apply()
    }

    private fun requireContext(): Context {
        return fragment?.requireContext() ?: run {
            activity!!
        }
    }

    enum class Status {
        GRANTED, UN_GRANTED, TEMPORARY_DENIED, PERMANENT_DENIED
    }

    interface Listener {
        fun onComplete(grantedPermissions: Set<String>, deniedPermissions: Set<String>)
        fun onShowPermissionRationale(permissions: Set<String>): Boolean
        fun onShowSettingRationale(permissions: Set<String>): Boolean
    }

    companion object {
        const val REQUEST_CODE = 200
    }
}

在Activity中使用

class MainActivity : AppCompatActivity() {
    private lateinit var smsAndStoragePermissionHandler: RequestPermissionHandler

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        smsAndStoragePermissionHandler = RequestPermissionHandler(this@MainActivity,
                permissions = setOf(Manifest.permission.RECEIVE_SMS, Manifest.permission.READ_EXTERNAL_STORAGE),
                listener = object : RequestPermissionHandler.Listener {
                    override fun onComplete(grantedPermissions: Set<String>, deniedPermissions: Set<String>) {
                        Toast.makeText(this@MainActivity, "complete", Toast.LENGTH_SHORT).show()
                        text_granted.text = "Granted: " + grantedPermissions.toString()
                        text_denied.text = "Denied: " + deniedPermissions.toString()
                    }

                    override fun onShowPermissionRationale(permissions: Set<String>): Boolean {
                        AlertDialog.Builder(this@MainActivity).setMessage("To able to Send Photo, we need SMS and" + " Storage permission")
                                .setPositiveButton("OK") { _, _ ->
                                    smsAndStoragePermissionHandler.retryRequestDeniedPermission()
                                }
                                .setNegativeButton("Cancel") { dialog, _ ->
                                    smsAndStoragePermissionHandler.cancel()
                                    dialog.dismiss()
                                }
                                .show()
                        return true // don't want to show any rationale, just return false here
                    }

                    override fun onShowSettingRationale(permissions: Set<String>): Boolean {
                        AlertDialog.Builder(this@MainActivity).setMessage("Go Settings -> Permission. " + "Make SMS on and Storage on")
                                .setPositiveButton("Settings") { _, _ ->
                                    smsAndStoragePermissionHandler.requestPermissionInSetting()
                                }
                                .setNegativeButton("Cancel") { dialog, _ ->
                                    smsAndStoragePermissionHandler.cancel()
                                    dialog.cancel()
                                }
                                .show()
                        return true
                    }
                })

        button_request.setOnClickListener { handleRequestPermission() }
    }

    private fun handleRequestPermission() {
        smsAndStoragePermissionHandler.requestPermission()
    }

    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>,
                                            grantResults: IntArray) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
        smsAndStoragePermissionHandler.onRequestPermissionsResult(requestCode, permissions,
                grantResults)
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        smsAndStoragePermissionHandler.onActivityResult(requestCode)
    }
}

Code on Github

Demo

Answer 6

Android-M ie，API 23引入Runtime Permissions以减少Android设备中的安全漏洞，用户现在可以在运行时直接管理应用程序权限。如果用户拒绝您的应用程序的特定权限，则必须获取它通过询问您在查询中提到的权限对话框。

因此请在行动前检查，即检查您是否有权访问资源link，如果您的应用程序没有该特定权限，您可以请求权限link并处理权限请求回复如下。

@Streaming
@GET("url")
Call<ResponseBody> getData(params);

最后，如果您计划使用新版本以避免强行关闭，那么通过behavior changes是一个很好的做法：）

Permissions Best Practices.

您可以浏览官方示例应用here。

Answer 7

默认情况下，从Android Marshmallow（API 23）及更高版本禁用所有危险权限（根据官方文档official doc）。在应用程序第一次打开时安装后，您必须在运行时授予权限。

我通过以下方式实现了这一目标：

public class MarshMallowPermission {

    public static final int EXTERNAL_STORAGE_PERMISSION_REQUEST_CODE_BY_GALLERY = 0;
    public static final int EXTERNAL_STORAGE_PERMISSION_REQUEST_CODE_BY_CAMERA = 1;
    public static final int EXTERNAL_STORAGE_PERMISSION_REQUEST_CODE_BY_LOAD_PROFILE = 2;
    public static final int CAMERA_PERMISSION_REQUEST_CODE = 3;
    public static final int LOCATION_PERMISSION_REQUEST_CODE = 4;
    Activity activity;
    Context mContext;

    public MarshMallowPermission(Activity activity) {
        this.activity = activity;
        this.mContext = activity;
    }

    public boolean checkPermissionForExternalStorage(){
        int result = ContextCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
        if (result == PackageManager.PERMISSION_GRANTED){
            return true;
        } else {
            return false;
        }
    }

    public boolean checkPermissionForCamera(){
        int result = ContextCompat.checkSelfPermission(activity, Manifest.permission.CAMERA);
        if (result == PackageManager.PERMISSION_GRANTED){
            return true;
        } else {
            return false;
        }
    }

    public boolean checkLocationPermission(){

        int result = ActivityCompat.checkSelfPermission(activity, Manifest.permission.ACCESS_FINE_LOCATION);
        if (result == PackageManager.PERMISSION_GRANTED){
            return true;
        } else {
            return false;
        }
    }

    public void requestPermissionForExternalStorage(int requestCode){
        if (ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE)){
            Toast.makeText(mContext.getApplicationContext(), "External Storage permission needed. Please allow in App Settings for additional functionality.", Toast.LENGTH_LONG).show();
        } else {
            ActivityCompat.requestPermissions(activity,new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},requestCode);
        }
    }

    public void requestPermissionForCamera(){
        if (ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.CAMERA)){
            Toast.makeText(mContext.getApplicationContext(), "Camera permission needed. Please allow in App Settings for additional functionality.", Toast.LENGTH_LONG).show();
        } else {
            ActivityCompat.requestPermissions(activity,new String[]{Manifest.permission.CAMERA},CAMERA_PERMISSION_REQUEST_CODE);
        }
    }
    public void requestPermissionForLocation(){
        if (ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.ACCESS_FINE_LOCATION) && ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.ACCESS_COARSE_LOCATION)){
            Toast.makeText(mContext.getApplicationContext(), "Location permission needed. Please allow in App Settings for additional functionality.", Toast.LENGTH_LONG).show();
        } else {
            ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.ACCESS_FINE_LOCATION,Manifest.permission.ACCESS_COARSE_LOCATION}, LOCATION_PERMISSION_REQUEST_CODE);
        }
    }
}

在您的活动课程中：

 public class MainActivity extends AppCompatActivity{

   private MarshMallowPermission marshMallowPermission;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        Log.d("NavHome", "Oncreate_nav");
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        marshMallowPermission = new MarshMallowPermission(MainActivity.this);



        if (!marshMallowPermission.checkPermissionForExternalStorage()) {
            marshMallowPermission.requestPermissionForExternalStorage(MarshMallowPermission.EXTERNAL_STORAGE_PERMISSION_REQUEST_CODE_BY_LOAD_PROFILE);
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        switch (requestCode) {
            case MarshMallowPermission.EXTERNAL_STORAGE_PERMISSION_REQUEST_CODE_BY_LOAD_PROFILE:
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                    //permission granted successfully

                } else {

                 //permission denied

                }
                break;
    }
    }

}

Answer 8

我正在使用它作为基础Fragment类。我只要求片段的权限，但你可以重构它并制作类似的Activity版本。

public class BaseFragment extends Fragment {

    private static final int PERMISSION_REQUEST_BLOCK_INTERNAL = 555;
    private static final String PERMISSION_SHARED_PREFERENCES = "permissions";

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == PERMISSION_REQUEST_BLOCK_INTERNAL) {
            boolean allPermissionsGranted = true;

            for (int iGranting : grantResults) {
                if (iGranting != PermissionChecker.PERMISSION_GRANTED) {
                    allPermissionsGranted = false;
                    break;
                }
            }

            if (allPermissionsGranted && permissionBlock != null) {
                permissionBlock.run();
            }

            permissionBlock = null;
        }
    }

    public void runNowOrAskForPermissionsFirst(String permission, Runnable block) {
        if (hasPermission(permission)) {
            block.run();
        } else if (!hasPermissionOrWillAsk(permission)) {
            permissionBlock = block;
            askForPermission(permission, PERMISSION_REQUEST_BLOCK_INTERNAL);
        }
    }

    public boolean hasPermissionOrWillAsk(String permission) {
        boolean hasPermission = hasPermission(permission);
        boolean hasAsked = hasPreviouslyAskedForPermission(permission);
        boolean shouldExplain = shouldShowRequestPermissionRationale(permission);

        return hasPermission || (hasAsked && !shouldExplain);
    }

    private boolean hasPermission(String permission) {
        return (ContextCompat.checkSelfPermission(getContext(), permission) == PackageManager.PERMISSION_GRANTED);
    }

    private boolean hasPreviouslyAskedForPermission(String permission) {
        SharedPreferences prefs = getContext().getSharedPreferences(PERMISSION_SHARED_PREFERENCES, Context.MODE_PRIVATE);
        return prefs.getBoolean(permission, false);
    }

    private void askForPermission(String permission, int requestCode) {
        SharedPreferences.Editor editor = getContext().getSharedPreferences(PERMISSION_SHARED_PREFERENCES, Context.MODE_PRIVATE).edit();

        editor.putBoolean(permission, true);
        editor.apply();

        requestPermissions(new String[] { permission }, requestCode);
    }
}

您应该使用两种关键方法：

hasPermissionOrWillAsk - 使用此选项查看是否已请求权限并拒绝不希望再次被询问的用户。当用户给出关于不想要某个功能的最终答案时，这对于禁用UI非常有用。
runNowOrAskForPermissionsFirst - 使用此命令运行一些需要权限的代码。如果用户已授予权限，则代码将立即运行。否则，如果用户授予权限，代码将稍后运行。或者完全没有。这很好，因为您在一个地方指定了代码。

以下是一个例子：

mFragment.runNowOrAskForPermissionsFirst(Manifest.permission.ACCESS_FINE_LOCATION, new Runnable() {
    @Override
    public void run() {
        ...do something if we have permission...
    }
});

很高兴收到有关此内容的反馈。并不是说这个具体示例有点简化，您还需要检查是否在设备上启用了位置服务。（这与权限不同。）此外，它一次只支持一个权限，但如果您需要一次支持多个权限，则很容易修改。

Answer 9

这可能是一种更清洁的方式。在数组中添加所有权限，如

private static final String[] INITIAL_PERMS={
            android.Manifest.permission.ACCESS_FINE_LOCATION,
            android.Manifest.permission.ACCESS_COARSE_LOCATION
    };
    private static final int INITIAL_REQUEST=1337;

无论你的permision是什么创建每个permision的方法

@RequiresApi(api = Build.VERSION_CODES.M)
private boolean canAccessFineLocation() {
    return(hasPermission(Manifest.permission.ACCESS_FINE_LOCATION));
}

@RequiresApi(api = Build.VERSION_CODES.M)
private boolean canAccessCoarseLocation() {
    return(hasPermission(Manifest.permission.ACCESS_COARSE_LOCATION));
}

@RequiresApi(api = Build.VERSION_CODES.M)
private boolean hasPermission(String perm) {
    return(PackageManager.PERMISSION_GRANTED == checkSelfPermission(perm));
}

在 onCreate

中调用此方法

 if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
      if(!canAccessCoarseLocation() || !canAccessFineLocation()){
            requestPermissions(INITIAL_PERMS, INITIAL_REQUEST);
        }
 }

现在覆盖 onRequestPermissionsResult

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

    if(requestCode == INITIAL_REQUEST){
        if (canAccessFineLocation() && canAccessCoarseLocation())  {
            //call your method
        }
        else {
            //show Toast or alert that this permissions is neccessary
        }
    }
}

Answer 10

如果您使用的是AndroidX Activity 1.2.0或AndroidX Fragment 1.3.0 ：

您可以使用新的“活动结果” API来请求权限：

val launcher = registerForActivityResult(ActivityResultContracts.RequestPermission()) { isGranted ->
    if (isGranted) {
        // Permission granted. Do the tasks.
    }
}
launcher.launch(Manifest.permission.ACCESS_FINE_LOCATION)

Answer 11

For multiple permission at a time you can use this. This work for me.. I got another solution. if you give your targetSdkVersion bellow 22 it works for me. and it behavior as like getting permission from manifest.xml. Tested and works for me.

final private int REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS = 124;

    private void insertDummyContactWrapper() {
        List<String> permissionsNeeded = new ArrayList<String>();

        final List<String> permissionsList = new ArrayList<String>();
        if (!addPermission(permissionsList, Manifest.permission.ACCESS_FINE_LOCATION))
            permissionsNeeded.add("GPS");
        if (!addPermission(permissionsList, Manifest.permission.READ_CONTACTS))
            permissionsNeeded.add("Read Contacts");
        if (!addPermission(permissionsList, Manifest.permission.WRITE_CONTACTS))
            permissionsNeeded.add("Write Contacts");

        if (permissionsList.size() > 0) {
            if (permissionsNeeded.size() > 0) {
                // Need Rationale
                String message = "You need to grant access to " + permissionsNeeded.get(0);
                for (int i = 1; i < permissionsNeeded.size(); i++)
                    message = message + ", " + permissionsNeeded.get(i);
                showMessageOKCancel(message,
                        new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),
                                        REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS);
                            }
                        });
                return;
            }
            requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),
                    REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS);
            return;
        }

        insertDummyContact();
    }

    private boolean addPermission(List<String> permissionsList, String permission) {
        if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
            permissionsList.add(permission);
            // Check for Rationale Option
            if (!shouldShowRequestPermissionRationale(permission))
                return false;
        }
        return true;
    }






@Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode) {
            case REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS:
                {
                Map<String, Integer> perms = new HashMap<String, Integer>();
                // Initial
                perms.put(Manifest.permission.ACCESS_FINE_LOCATION, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.READ_CONTACTS, PackageManager.PERMISSION_GRANTED);
                perms.put(Manifest.permission.WRITE_CONTACTS, PackageManager.PERMISSION_GRANTED);
                // Fill with results
                for (int i = 0; i < permissions.length; i++)
                    perms.put(permissions[i], grantResults[i]);
                // Check for ACCESS_FINE_LOCATION
                if (perms.get(Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED
                        && perms.get(Manifest.permission.WRITE_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
                    // All Permissions Granted
                    insertDummyContact();
                } else {
                    // Permission Denied
                    Toast.makeText(MainActivity.this, "Some Permission is Denied", Toast.LENGTH_SHORT)
                            .show();
                }
                }
                break;
            default:
                super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }

For more details. Check bellow link

https://inthecheesefactory.com/blog/things-you-need-to-know-about-android-m-permission-developer-edition/en

Answer 12

为了处理运行时权限，谷歌提供了一个库项目。您可以在此处https://github.com/googlesamples/easypermissions

查看此信息

通过将以下依赖项添加到build.gradle文件来安装EasyPermissions：

dependencies {
compile 'pub.devrel:easypermissions:0.3.0'
}

要开始使用EasyPermissions，请让您的活动（或片段）覆盖onRequestPermissionsResult方法：

public class MainActivity extends AppCompatActivity implements EasyPermissions.PermissionCallbacks {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);

    // Forward results to EasyPermissions
    EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
}

@Override
public void onPermissionsGranted(int requestCode, List<String> list) {
    // Some permissions have been granted
    // ...
}

@Override
public void onPermissionsDenied(int requestCode, List<String> list) {
    // Some permissions have been denied
    // ...
}
}

在这里，您将获得该库如何工作的实例 https://github.com/milon87/EasyPermission

Answer 13

如果后台服务需要权限，则需要提供权限时，可以使用一个很好的库。虽然库的限制是它不能用于确定当前是否向应用程序提供权限。它总是询问用户应用程序是否还没有它们。

请尝试一下，因为它可以简化生活：Android Permissions

Answer 14

试试这个

这是在Marshmallow版本中请求许可的最简单方法。

 if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED&&ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED)
    {
        //TO do here if permission is granted by user
    }
    else
    {
        //ask for permission if user didnot given
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
        {
            requestPermissions(new String[]{Manifest.permission.CAMERA,Manifest.permission.ACCESS_FINE_LOCATION}, 0);
        }
    }

注意： - 请勿忘记在清单文件中添加此相同权限

 <uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

第二种方法 是否授予检查许可的代码？

ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.CAMERA}, 1);

并覆盖方法

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 1: {
            if (grantResults.length > 0 && grantResults[1] == PackageManager.PERMISSION_GRANTED) {
         //                    grantResult[0] means it will check for the first postion permission which is READ_EXTERNAL_STORAGE
        //                    grantResult[1] means it will check for the Second postion permission which is CAMERA
                Toast.makeText(this, "Permission Granted", Toast.LENGTH_SHORT).show();
            }
            else
                Toast.makeText(this, "Permission not Granted", Toast.LENGTH_SHORT).show();
            return;
        }
    }
}

Answer 15

以下代码完美无缺。我在一个例子的帮助下解释。

在我的情况下，我将权限检查单独放在util类中，并传递了我需要从相应的类中检查的特定权限。这使得能够在整个应用程序中重用权限检查util文件。

下面的代码部分显示了函数调用。在这种情况下，请求android.Manifest.permission.READ_EXTERNAL_STORAGE权限。

//the below call is from a fragment
     @OnClick(R.id.button)//butterknife implementation
        public void attachPressed() {
            if (PermissionUtils.hasThisPermission(getContext(), android.Manifest.permission.READ_EXTERNAL_STORAGE)) {
                onAttachPressed();
            } else {
                PermissionUtils.isPermissionRequestNeeded(getActivity(), this, android.Manifest.permission.READ_EXTERNAL_STORAGE, PermissionUtils.REQUEST_GROUP_STORAGE);
            }
        }

在上述情况下，检查权限是否允许调用onAttachPressed();函数，否则我们检查请求权限。

以下是我案例PermissionUtils

中util类中的代码

public final class PermissionUtils {

    public static final int REQUEST_GROUP_STORAGE = 1508;

    private PermissionUtils() {
    }

    public static boolean hasThisPermission(Context context, String permission) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            return ActivityCompat.checkSelfPermission(context, permission) == PackageManager.PERMISSION_GRANTED;
        } else {
            return true;
        }
    }

    public static boolean isPermissionRequestNeeded(Activity activity, Fragment fragment, String permission, int requestCode) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !hasThisPermission(activity, permission)) {
            final String[] permissions = new String[]{permission};
            if (fragment == null) {
                activity.requestPermissions(permissions, requestCode);
            } else {
                fragment.requestPermissions(permissions, requestCode);
            }
            return true;
        }
        return false;
    }
}

在请求之后，如果你想从onRequestPermissionsResult调用该函数，否则你需要再次按下该按钮进行函数调用。

所以只需从onRequestPermissionsResult

调用即可

//the below call  is from a fragment
     @Override
        public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
            if (requestCode == PermissionUtils.REQUEST_GROUP_STORAGE && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                onAttachPressed();
            } else {
                Log.e("value", "Permission Denied, You cannot use local drive .");
            }
        }

Answer 16

通过避免编写大量代码来获取权限的简单方法，

https://github.com/sachinvarma/EasyPermission

如何添加：

repositories {
        maven { url "https://jitpack.io" }
    }

implementation 'com.github.sachinvarma:EasyPermission:1.0.1'

如何获得许可：

 List<String> permission = new ArrayList<>();
 permission.add(EasyPermissionList.READ_EXTERNAL_STORAGE);
 permission.add(EasyPermissionList.ACCESS_FINE_LOCATION);

 new EasyPermissionInit(MainActivity.this, permission);

希望它对某人有帮助。

Answer 17

将权限添加到AndroidManifest.xml

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<application ...>
 ....
</application>

要检查Android版本是否需要运行时权限。

if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1) {
    askForPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE, 1);
}

要求用户授予权限（如果未授予）。

private void askForPermission(String permission, int requestCode) {
    if (ContextCompat.checkSelfPermission(c, permission)
            != PackageManager.PERMISSION_GRANTED) {
        if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, permission)) {
            Toast.makeText(c, "Please grant the requested permission to get your task done!", Toast.LENGTH_LONG).show();
            ActivityCompat.requestPermissions(MainActivity.this, new String[]{permission}, requestCode);
        } else {
            ActivityCompat.requestPermissions(MainActivity.this, new String[]{permission}, requestCode);
        }
    }
}

如果已授予许可，则执行某些操作。

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    switch (requestCode) {
        case 1:
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                //permission with request code 1 granted
                Toast.makeText(this, "Permission Granted" , Toast.LENGTH_LONG).show();
            } else {
                //permission with request code 1 was not granted
                Toast.makeText(this, "Permission was not Granted" , Toast.LENGTH_LONG).show();
            }
            break;
        default:
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }
}

Answer 18

  if (CommonMethod.isNetworkAvailable(MainActivity.this)) {
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                        int permissionCheck = ContextCompat.checkSelfPermission(MainActivity.this,
                                android.Manifest.permission.CAMERA);
                        if (permissionCheck == PackageManager.PERMISSION_GRANTED) {
                            //showing dialog to select image
                            callFacebook();
                            Log.e("permission", "granted MarshMallow");
                        } else {
                            ActivityCompat.requestPermissions(MainActivity.this,
                                    new String[]{android.Manifest.permission.READ_EXTERNAL_STORAGE,
                                            android.Manifest.permission.WRITE_EXTERNAL_STORAGE, android.Manifest.permission.CAMERA}, 1);
                        }
                    } else {
                        Log.e("permission", "Not Required Less than MarshMallow Version");
                        callFacebook();
                    }
                } else {
                    CommonMethod.showAlert("Internet Connectivity Failure", MainActivity.this);
                }

Answer 19

您可以使用我的图书馆 - NoPermission（它只是一个班级）

compile 'ru.alexbykov:nopermission:1.1.1'

<强>示例

PermissionHelper permissionHelper = new PermissionHelper(this); //don't use getActivity in fragment!

permissionHelper.check(Manifest.permission.READ_CONTACTS)
                .onSuccess(this::onSuccess)
                .onDenied(this::onDenied)
                .onNeverAskAgain(this::onNeverAskAgain)
                .run();

<强> onRequestPermissionResult：

 @Override
  public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
        permissionHelper.onRequestPermissionsResult(requestCode, permissions, grantResults);
   }

我认为api比Google EasyPermissions更方便。

Answer 20

我使用RxPermission库图书馆寻求许可。因为这是很长的代码，所以我们必须编写该代码才能获得许可。

RxPermissions rxPermissions = new RxPermissions(this); // where this is an Activity instance // Must be done during an initialization phase like onCreate
rxPermissions
    .request(Manifest.permission.CAMERA)
    .subscribe(granted -> {
        if (granted) { // Always true pre-M
           // I can control the camera now
        } else {
           // Oups permission denied
        }
    });

在您的build.gradle

中添加这些依赖项

allprojects {
    repositories {
        ...
        maven { url 'https://jitpack.io' }
    }
}

dependencies {
    implementation 'com.github.tbruyelle:rxpermissions:0.10.1'
    implementation 'com.jakewharton.rxbinding2:rxbinding:2.1.1'
}

Answer 21

运行时权限在应用程序中的任何位置 Here is Example

use dependency
maven { url 'https://jitpack.io' }
dependencies {
implementation 'com.github.irshadsparky:PermissionLib:master-SNAPSHOT'
}

并调用如下代码：

PermissionHelper.requestCamera(new PermissionHelper.OnPermissionGrantedListener() {
@Override
public void onPermissionGranted() {

}
});

您可以找到更多Github

Answer 22

我查看了所有答案，但没有满足我确切需要的答案，因此，这是我编写并可以正常使用的示例，即使用户单击不再询问复选框。 / p>

创建一个方法，当您想请求运行时权限时将调用该方法，例如readContacts()，或者也可以拥有openCamera()，如下所示：
```
private void readContacts() {
    if (!askContactsPermission()) {
        return;
    } else {
        queryContacts();
    } }
```

现在我们需要输入askContactsPermission()，您也可以将其命名为askCameraPermission()或您要询问的任何权限。

    private boolean askContactsPermission() {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
        return true;
    }
    if (checkSelfPermission(READ_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
        return true;
    }
    if (shouldShowRequestPermissionRationale(READ_CONTACTS)) {
        Snackbar.make(parentLayout, R.string.permission_rationale, Snackbar.LENGTH_INDEFINITE)
                .setAction(android.R.string.ok, new View.OnClickListener() {
                    @Override
                    @TargetApi(Build.VERSION_CODES.M)
                    public void onClick(View v) {
                        requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
                    }
                }).show();
    } else if (contactPermissionNotGiven) {
        openPermissionSettingDialog();
    } else {
        requestPermissions(new String[]{READ_CONTACTS}, REQUEST_READ_CONTACTS);
        contactPermissionNotGiven = true;

    }
    return false;
}

在编写此函数之前，请确保已定义如下实例变量：

    private View parentLayout;
    private boolean contactPermissionNotGiven;;


/**
 * Id to identity READ_CONTACTS permission request.
 */
private static final int REQUEST_READ_CONTACTS = 0;

现在是覆盖onRequestPermissionsResult方法的最后一步，如下所示：

/**
 * Callback received when a permissions request has been completed.
 */
@RequiresApi(api = Build.VERSION_CODES.M)
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
                                       @NonNull int[] grantResults) {
    if (requestCode == REQUEST_READ_CONTACTS) {
        if (grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            queryContacts();
        }
    }
}

在这里，我们已完成运行时权限，附加项为openPermissionSettingDialog()，如果用户通过单击不再询问复选框永久禁用了权限，则只需打开“设置”屏幕即可。下面是方法：

    private void openPermissionSettingDialog() {
    String message = getString(R.string.message_permission_disabled);
    AlertDialog alertDialog =
            new AlertDialog.Builder(MainActivity.this, AlertDialog.THEME_DEVICE_DEFAULT_LIGHT)
                    .setMessage(message)
                    .setPositiveButton(getString(android.R.string.ok),
                            new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    Intent intent = new Intent();
                                    intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                                    Uri uri = Uri.fromParts("package", getPackageName(), null);
                                    intent.setData(uri);
                                    startActivity(intent);
                                    dialog.cancel();
                                }
                            }).show();
    alertDialog.setCanceledOnTouchOutside(true);
}

我们错过了什么？ 1.在strings.xml

中定义使用的字符串

<string name="permission_rationale">"Contacts permissions are needed to display Contacts."</string>
    <string name="message_permission_disabled">You have disabled the permissions permanently,
        To enable the permissions please go to Settings -> Permissions and enable the required Permissions,
        pressing OK you will be navigated to Settings screen</string>

在parentLayout方法中初始化onCreate变量

parentLayout = findViewById（R.id.content）;
在AndroidManifest.xml

<uses-permission android:name="android.permission.READ_CONTACTS" />

queryContacts方法，根据您的需要或运行时权限，您可以在需要permission之前调用您的方法。就我而言，我只是使用加载程序来获取联系人，如下所示：
```
private void queryContacts() {
getLoaderManager().initLoader(0, null, this);}
```

这很不错，编码很愉快:)

Answer 23

运行时权限在活动中创建了大量重复的代码。要减少代码并使事情变得简单，可以使用Dexter库。

Answer 24

Android的运行时权限

public void onClick(View view) {
    if (view.getId() == shareButton.getId()) {
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
            this.shareLog();
        } else {
            ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.WRITE_EXTERNAL_STORAGE }, LogConstants.PERMISSION_REQ_WRITE_EXTERNAL_STORAGE);
        }
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (requestCode == LogConstants.PERMISSION_REQ_WRITE_EXTERNAL_STORAGE) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            this.shareLog();
        }
    }
}

OnClick方法是检查运行时权限

如果权限受到限制，则它会请求权限

Android marshmallow请求权限？

24 个答案: