87

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

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

请求权限不会弹出我期望的对话框，但是如果我在没有此权限的情况下进行以下调用，

 RingtoneManager.setActualDefaultRingtoneUri(activity, RingtoneManager.TYPE_RINGTONE, ringUri);

除非我没有权限，否则电话会。

我不知道从这里去哪里。23 有新的铃声 API 吗？还是这种权限更改只是使任何非系统应用程序无法更改铃声？

4

9 回答 9

137

要使用WRITE_SETTINGS，基于文档：

  1. 让清单中的<uses-permission>元素正常。

  2. 打电话Settings.System.canWrite()来看看你是否有资格写出设置。

  3. 如果canWrite()返回false，则启动活动，以便用户可以在ACTION_MANAGE_WRITE_SETTINGS那里同意允许您的应用实际写入设置。

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

另请注意，我还没有尝试使用这些 - 这是基于我昨天对 Android 6.0 更改所做的研究。

于 2015-08-18T22:27:43.753 回答
46

除了 CommonsWare 的回答和 Ogix 的评论，这里有一些虚拟代码：

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);
}
于 2016-04-02T10:40:14.687 回答
41

以前的答案很好，我也得到了许可请求的结果。

 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
        }
    }
于 2016-09-22T10:09:34.330 回答
13

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);
    }
}
于 2017-02-19T13:13:52.517 回答
8

从 android Marshmellow 开始，您需要使用旨在提高安全性的运行时权限，或者在需要文档时使用权限

和写设置文档是here

在清单中添加

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

在你的课上

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);
    }
}

并像这样使用它

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();
        }
于 2018-04-16T06:18:13.540 回答
5

权限android.permission.WRITE_SETTINGS现在在组中，signature|appop|pre23|preinstalled例如android.permission.CHANGE_NETWORK_STATE和android.permission.SYSTEM_ALERT_WINDOW

这意味着您可以在 sdk 22 及更低版本上获得它。在较新的版本上，您必须是应用程序操作员。

于 2015-09-11T15:00:36.723 回答
4

我用波纹管喜欢..

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();
        }
    }

清单许可

<uses-permission  android:name="android.permission.WRITE_SETTINGS" tools:ignore="ProtectedPermissions" />
于 2020-03-28T15:38:37.063 回答
2

在 AndroidManifest.xml 中提及以下权限

在下面的活动中使用 if else 来更改设置。

if(Settings.System.canWrite(this)){
    // change setting here
}
else{
    //Migrate to Setting write permission screen. 
    Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS);
    intent.setData(Uri.parse("package:" + mContext.getPackageName()));
    startActivity(intent);
}
于 2018-01-23T10:29:40.823 回答
2

•Kotlin Version in Simple Steps

按着这些次序：

1.在normal中添加权限的usage元素manifest.xml：

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

2.要更改设置的地方，请检查写入权限：

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

3.在请求权限的情况下，还要添加这些代码行：

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
}
于 2020-11-10T08:42:50.363 回答