Question

我想获得用户的5个权限

我的代码：

public void requestPerm() {
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
        if (checkSelfPermission(android.Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.CAMERA};
            ActivityCompat.requestPermissions(this,permissions, 1);
        }
        if (checkSelfPermission(android.Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.READ_PHONE_STATE};
            ActivityCompat.requestPermissions(this,permissions, 1);
        }
        if (checkSelfPermission(android.Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.RECORD_AUDIO};
            ActivityCompat.requestPermissions(this,permissions, 1);
        }
        if (checkSelfPermission(android.Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.READ_EXTERNAL_STORAGE};
            ActivityCompat.requestPermissions(this,permissions, 1);
        }
        if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.WRITE_EXTERNAL_STORAGE};
            ActivityCompat.requestPermissions(this,permissions, 1);
        }
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 1: {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Log.i("errorCheck","YES");
                startRequest();
            } else {
                Log.i("errorCheck","NO");
            }
        }
    }
}

并使用requestPerm()。MainActivity

中的onClickListener

点击用户获取requestPerm()后，在用户点击允许或拒绝之前，我会两次登录“否”

我只想在点击用户ALLOW或DENY

上返回结果

但现在，午餐requestPerm()返回结果“NO”

Answer 1

为每个权限使用不同的requestCode。

public void requestPerm() {
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
        if (checkSelfPermission(android.Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.CAMERA};
            ActivityCompat.requestPermissions(this,permissions, 100);
        }
        if (checkSelfPermission(android.Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.READ_PHONE_STATE};
            ActivityCompat.requestPermissions(this,permissions, 101);
        }
        if (checkSelfPermission(android.Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.RECORD_AUDIO};
            ActivityCompat.requestPermissions(this,permissions, 102);
        }
        if (checkSelfPermission(android.Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.READ_EXTERNAL_STORAGE};
            ActivityCompat.requestPermissions(this,permissions, 103);
        }
        if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            String[] permissions = {android.Manifest.permission.WRITE_EXTERNAL_STORAGE};
            ActivityCompat.requestPermissions(this,permissions, 104);
        }
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 100: {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Log.i("errorCheck","YES");
                startRequest();
            } else {
                Log.i("errorCheck","NO");
            }
        }
    }
}

并在onRequestPermissionsResult方法中相应地创建switch case。

仅当您要对不同的权限结果执行不同的操作时才使用此选项。

如果您想对所有权限执行相同的操作并且需要所有权限，那么您可以使用以下代码来处理权限：

private void checkForPermission(final boolean askForPermission) {

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED
                || ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) //Check all permission here. {

            android.support.v7.app.AlertDialog.Builder builder = new android.support.v7.app.AlertDialog.Builder(this);
            builder.setMessage("We need to access your phone book to identify calls from unknown numbers.");
            builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    if (askForPermission) {
                        ActivityCompat.requestPermissions(Auto_MissedCall_HandlingActivity.this, new String[]{Manifest.permission.READ_PHONE_STATE, Manifest.permission.READ_CONTACTS}, MY_PERMISSIONS_REQUEST); //Ask for all permission at time here with single result code.
                    }
                }
            });
            builder.show();


        } else {

            /* All Permission Allow Do your code here*/
        }
    }


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

        switch (requestCode) {
            case MY_PERMISSIONS_REQUEST:

                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED && grantResults[1] == PackageManager.PERMISSION_GRANTED) {

                   /*All Permission Allow and Do Your Code here*/

                } else {

                    android.support.v7.app.AlertDialog.Builder builder = new android.support.v7.app.AlertDialog.Builder(this);
                    builder.setMessage("Oops permission denied");
                    builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                        }
                    });
                    builder.show();
                }

                return;
        }

    }

并且不要忘记在Menifest.xml中添加所有权限

Menifest.xml

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

Answer 2

Android Marshmallow还支持在应用启动或按钮点击时一次处理多个权限。此功能允许我们一次请求不同的权限，因此每次应用程序想要访问某些数据时都不需要再次请求权限。

在代码的Launcher Activity中使用以下代码：

Menifest.xml

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

您的活动如下所示：

  import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import static android.Manifest.permission.CAMERA;
import static android.Manifest.permission.READ_CONTACTS;
import static android.Manifest.permission.READ_PHONE_STATE;

public class MainActivity extends AppCompatActivity {

    Button button;
    public static final int RequestPermissionCode = 1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        button = (Button)findViewById(R.id.button);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                if(checkPermission()){

                    Toast.makeText(MainActivity.this, "All Permissions Granted Successfully", Toast.LENGTH_LONG).show();

                }
                else {

                    requestPermission();
                }

            }
        });
    }


    private void requestPermission() {

        ActivityCompat.requestPermissions(MainActivity.this, new String[]
                {
                        CAMERA,
                        READ_CONTACTS,
                        READ_PHONE_STATE
                }, RequestPermissionCode);

    }

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

            case RequestPermissionCode:

                if (grantResults.length > 0) {

                    boolean CameraPermission = grantResults[0] == PackageManager.PERMISSION_GRANTED;
                    boolean ReadContactsPermission = grantResults[1] == PackageManager.PERMISSION_GRANTED;
                    boolean ReadPhoneStatePermission = grantResults[2] == PackageManager.PERMISSION_GRANTED;

                    if (CameraPermission && ReadContactsPermission && ReadPhoneStatePermission) {

                        Toast.makeText(MainActivity.this, "Permission Granted", Toast.LENGTH_LONG).show();
                    }
                    else {
                        Toast.makeText(MainActivity.this,"Permission Denied",Toast.LENGTH_LONG).show();

                    }
                }

                break;
        }
    }

    public boolean checkPermission() {

        int FirstPermissionResult = ContextCompat.checkSelfPermission(getApplicationContext(), CAMERA);
        int SecondPermissionResult = ContextCompat.checkSelfPermission(getApplicationContext(), READ_CONTACTS);
        int ThirdPermissionResult = ContextCompat.checkSelfPermission(getApplicationContext(), READ_PHONE_STATE);

        return FirstPermissionResult == PackageManager.PERMISSION_GRANTED &&
                SecondPermissionResult == PackageManager.PERMISSION_GRANTED &&
                ThirdPermissionResult == PackageManager.PERMISSION_GRANTED;
    }

}

Android：onRequestPermissionsResult运行时多个

2 个答案: