Question

我需要在用户首次打开应用程序时自动获得以下权限的用户权限

电话
通话记录
始终在最前面

电话工作正常。如何获得永远的最高权限

MainActivity

protected void onCreate(Bundle savedInstanceState) {
    if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.SYSTEM_ALERT_WINDOW)
            != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.SYSTEM_ALERT_WINDOW}, 1);
    }
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}

清单

<uses-permission android:name="android.permission.READ_CALL_LOG" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

Answer 1

没有运行时权限/对话框，您必须将用户传递给应用设置

public void checkPermission() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    if (!Settings.canDrawOverlays(this)) {
        Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
                Uri.parse("package:" + getPackageName()));
        startActivityForResult(intent, ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE);
    }
}
}

来自here

SYSTEM_ALERT_WINDOW的运行时权限

1 个答案: