无法获得WRITE_SETTINGS权限

时间：2015-08-18 22:10:07

标签： android android-6.0-marshmallow

当我在Android M Preview 3上拥有23的目标API时，我似乎无法获得Manifest.permission.WRITE_SETTTINGS权限。 

implements

请求权限不会显示我期望的对话框，但如果我未经此许可进行以下调用，

 requestPermissions(new String[]{Manifest.permission.WRITE_SETTINGS},
              101);

电话会议除外，因为我没有获得许可。

我不知道从哪里开始。 23有新的铃声API吗？或者这个权限更改是否只是让任何非系统应用程序无法更改铃声？

9 个答案:

答案 0 :(得分：111)

根据文档使用WRITE_SETTINGS：

  1. 正常使用清单中的<uses-permission>元素。

  2. Call Settings.System.canWrite()查看您是否有资格写出设置。

  3. 如果canWrite()返回false，请启动the ACTION_MANAGE_WRITE_SETTINGS activity，以便用户同意允许您的应用实际写入设置。

    4. 换句话说，写入设置现在是双重选择（同意安装，在允许的设置中单独同意），类似于设备管理API，可访问性服务等。

    另请注意，我尚未尝试使用这些内容 - 这是基于research that I did yesterday on Android 6.0 changes。

答案 1 :(得分：37)

除了CommonsWare的回答和Ogix的评论之外，还有一些虚拟代码：

private boolean checkSystemWritePermission() {
    boolean retVal = true;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        retVal = Settings.System.canWrite(this);
        Log.d(TAG, "Can Write Settings: " + retVal);
        if(retVal){
            Toast.makeText(this, "Write allowed :-)", Toast.LENGTH_LONG).show();
        }else{
            Toast.makeText(this, "Write not allowed :-(", Toast.LENGTH_LONG).show();
            FragmentManager fm = getFragmentManager();
            PopupWritePermission dialogFragment = new PopupWritePermission();
            dialogFragment.show(fm, getString(R.string.popup_writesettings_title));
        }
    }
    return retVal;
}

Fragment PopupwritePermission然后给出一个解释情况的窗口。单击“确定”按钮将打开可以授予权限的Android系统菜单：

private void openAndroidPermissionsMenu() {
    Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS);
    intent.setData(Uri.parse("package:" + getActivity().getPackageName()));
    startActivity(intent);
}

答案 2 :(得分：33)

之前的答案很棒，我只是为了获得许可请求的结果而添加了一点点。

 public static void youDesirePermissionCode(Activity context){
        boolean permission;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            permission = Settings.System.canWrite(context);
        } else {
            permission = ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_SETTINGS) == PackageManager.PERMISSION_GRANTED;
        }
        if (permission) {
            //do your code
        }  else {
            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
                Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS);
                intent.setData(Uri.parse("package:" + context.getPackageName()));
                context.startActivityForResult(intent, MainActivity.CODE_WRITE_SETTINGS_PERMISSION);
            } else {
                ActivityCompat.requestPermissions(context, new String[]{Manifest.permission.WRITE_SETTINGS}, MainActivity.CODE_WRITE_SETTINGS_PERMISSION);
            }
        }
    }

然后在Activity：

@SuppressLint("NewApi")
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == MainActivity.CODE_WRITE_SETTINGS_PERMISSION && Settings.System.canWrite(this)){
            Log.d("TAG", "MainActivity.CODE_WRITE_SETTINGS_PERMISSION success");
            //do your code
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == MainActivity.CODE_WRITE_SETTINGS_PERMISSION && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            //do your code
        }
    }

答案 3 :(得分：9)

这是一个完整的例子：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    if (Settings.System.canWrite(context) {
        // Do stuff here
    }
    else {
        Intent intent = new Intent(android.provider.Settings.ACTION_MANAGE_WRITE_SETTINGS);
        intent.setData(Uri.parse(“package:” + getActivity().getPackageName()));
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(intent);
    }
}

答案 4 :(得分：4)

权限android.permission.WRITE_SETTINGS现在位于signature|appop|pre23|preinstalled小组android.permission.CHANGE_NETWORK_STATE和android.permission.SYSTEM_ALERT_WINDOW

这意味着你可以在sdk 22及以下版本上获得它。在较新的版本上，您必须是应用程序运营商。

答案 5 :(得分：4)

从Android Marshmellow开始，您需要使用旨在提高安全性的运行时权限，或者在需要时使用权限documenatation

并且写入设置文档为here

在清单添加

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

在你的班级

private boolean checkSystemWritePermission() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        if(Settings.System.canWrite(context))
            return true;
        else 
            openAndroidPermissionsMenu();
    }
    return false;
}

private void openAndroidPermissionsMenu() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS);
        intent.setData(Uri.parse("package:" + context.getPackageName()));
        context.startActivity(intent);
    }
}

并像这样使用

try {
       if (checkSystemWritePermission()) {
            RingtoneManager.setActualDefaultRingtoneUri(context, RingtoneManager.TYPE_RINGTONE, newUri);
            Toast.makeText(context, "Set as ringtoon successfully ", Toast.LENGTH_SHORT).show();
            }else {
                Toast.makeText(context, "Allow modify system settings ==> ON ", Toast.LENGTH_LONG).show();
            }
        } catch (Exception e) {
            Log.i("ringtoon",e.toString());
            Toast.makeText(context, "unable to set as Ringtoon ", Toast.LENGTH_SHORT).show();
        }

答案 6 :(得分：4)

我用过类似波纹管的东西。

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        boolean retVal = true;
        retVal = Settings.System.canWrite(this);
        if (retVal == false) {
            if (!Settings.System.canWrite(getApplicationContext())) {

                Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS, Uri.parse("package:" + getPackageName()));
                Toast.makeText(getApplicationContext(), "Please, allow system settings for automatic logout ", Toast.LENGTH_LONG).show();
                startActivityForResult(intent, 200);
            }
        }else {
            Toast.makeText(getApplicationContext(), "You are not allowed to wright ", Toast.LENGTH_LONG).show();
        }
    }

清单权限

<uses-permission  android:name="android.permission.WRITE_SETTINGS" tools:ignore="ProtectedPermissions" />

答案 7 :(得分：2)

在AndroidManifest.xml中提及以下权限

在下面的活动中使用if if更改设置。

$ ./checktable2.py
UserID : aashishp Manger : rpudota
UserID : abaillie Manger : davem

答案 8 :(得分：1)

•Kotlin Version in Simple Steps

请按照以下步骤操作：

1。。通常在manifest.xml中添加权限的使用元素：

<uses-permission
    android:name="android.permission.WRITE_SETTINGS"
    tools:ignore="ProtectedPermissions" />

2。。要更改设置的位置，请检查写访问权限：

if (context.canWriteSettings) {
    // change the settings here ...
} else {
    startManageWriteSettingsPermission()
}

3。。在请求许可的情况下，还添加以下代码行：

private fun startManageWriteSettingsPermission() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        Intent(
            Settings.ACTION_MANAGE_WRITE_SETTINGS,
            Uri.parse("package:${context.packageName}")
        ).let {
            startActivityForResult(it, REQUEST_CODE_WRITE_SETTINGS_PERMISSION)
        }
    }
}

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

    when (requestCode) {
        REQUEST_CODE_WRITE_SETTINGS_PERMISSION -> {
            if (context.canWriteSettings) {
                // change the settings here ...
            } else {
                Toast.makeText(context, "Write settings permission is not granted!", Toast.LENGTH_SHORT).show()
            }
        }
    }
}

val Context.canWriteSettings: Boolean
    get() = Build.VERSION.SDK_INT < Build.VERSION_CODES.M || Settings.System.canWrite(this)

companion object {
    private const val REQUEST_CODE_WRITE_SETTINGS_PERMISSION = 5
}
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