那些遇到过的问题

如何在我的活动上提供屏幕覆盖权限

Don*_*ive 14 android android-6.0-marshmallow

在我的应用程序中我得到Android 6+中的屏幕覆盖问题我试图打开但是为此我需要为屏幕覆盖提供权限

我跟着这个我无法融入我的活动

我也试过这两个似乎都在工作,所以我想在我的活动中整合它们

这是我的活动:

public class MainActivity extends Activity {

    public static final int R_PERM = 123;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.data);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

        if ((CheckPermission(this, Manifest.permission.CAMERA)) &&
                (CheckPermission(this, Manifest.permission.READ_PHONE_STATE)) &&
                (CheckPermission(this, Manifest.permission.NFC))) {
            PermHandling();
        } else {
            RequestPermission(MainActivity.this, Manifest.permission.CAMERA, R_PERM);
            RequestPermission(MainActivity.this, Manifest.permission.READ_PHONE_STATE, R_PERM);
            RequestPermission(MainActivity.this, Manifest.permission.NFC, R_PERM);

            //NewPermHandling();
        }

    }

    private void PermHandling() {
        //My app internal parts....
        //Here my stuff works...
    }

    //private void NewPermHandling(){

    //}

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

        switch (permsRequestCode) {

            case R_PERM: {
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    PermHandling();
                } else {
                    //Toast.makeText(this, "Please Grant Permissions other wise app will close.!", Toast.LENGTH_SHORT).show();
                }
                return;
            }
        }
    }

    public void RequestPermission(Activity thisActivity, String Permission, int Code) {
        if (ContextCompat.checkSelfPermission(thisActivity,
                Permission)
                != PackageManager.PERMISSION_GRANTED) {
            if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity,
                    Permission)) {
            } else {
                ActivityCompat.requestPermissions(thisActivity,
                        new String[]{Permission},
                        Code);
            }
        }
    }

    public boolean CheckPermission(Context context, String Permission) {
        if (ContextCompat.checkSelfPermission(context,
                Permission) == PackageManager.PERMISSION_GRANTED) {
            return true;
        } else {
            return false;
        }
    }
}
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任何人都可以建议我如何在我的活动中给予屏幕方向权限这样用户无需给予或担心它请帮助我在这里试过但我不知道 PERM_REQUEST_CODE_DRAW_OVERLAYS

任何人请帮助我我的活动这不是重复或我要求的其他东西如何在我的活动中添加它

Ahm*_*aiz 14

以下是使用自定义叠加层禁用拉动通知的示例代码.它适用于以下Android版本和6+.

清单中所需的权限:

<uses-permission android:name="android.permission.ACTION_MANAGE_OVERLAY_PERMISSION" /> 
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
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禁用拉动通知 

private void disablePullNotificationTouch() {
   try {
    Log.v("App", "Disable Pull Notification");

    private HUDView mView = new HUDView(this);
    int statusBarHeight = (int) Math.ceil(25 * getResources().getDisplayMetrics().density);
    Log.v("App", "" + statusBarHeight);

    WindowManager.LayoutParams params = new WindowManager.LayoutParams(
     WindowManager.LayoutParams.MATCH_PARENT,
     statusBarHeight,
     WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
     WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE |
     WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN, //Disables status bar
     PixelFormat.TRANSPARENT); //Transparent

    params.gravity = Gravity.CENTER | Gravity.TOP;
    WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
    wm.addView(mView, params);
   } catch (Exception e) {
    Log.v("App", "Exception: " + e.getMessage());

   }
  }

  // code to post/handler request for permission 
  public final static int REQUEST_CODE = -1010101;

  @RequiresApi(api = Build.VERSION_CODES.M)
  public void checkDrawOverlayPermission() {
   Log.v("App", "Package Name: " + getApplicationContext().getPackageName());

   // check if we already  have permission to draw over other apps
   if (!Settings.canDrawOverlays(context)) {
    Log.v("App", "Requesting Permission" + Settings.canDrawOverlays(context));
    // if not construct intent to request permission
    Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
     Uri.parse("package:" + getApplicationContext().getPackageName()));
    / request permission via start activity for result
    startActivityForResult(intent, REQUEST_CODE);
   } else {
    Log.v("App", "We already have permission for it.");
    disablePullNotificationTouch();
   }
  }
  @TargetApi(Build.VERSION_CODES.M)
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
   Log.v("App", "OnActivity Result.");
   //check if received result code
   //  is equal our requested code for draw permission
   if (requestCode == REQUEST_CODE) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
     if (Settings.canDrawOverlays(this)) {
      disablePullNotificationTouch();
     }
    }
   }
  }
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修改后的代码

public class MainActivity extends Activity {

 public static final int REQUEST_PERMISSION = 123;

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.data);
  setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
   Log.v("App", "Build Version Greater than or equal to M: " + Build.VERSION_CODES.M);
   checkDrawOverlayPermission();
  } else {
   Log.v("App", "OS Version Less than M");
   //No need for Permission as less then M OS.
  }


  if ((CheckPermission(this, Manifest.permission.CAMERA)) &&
   (CheckPermission(this, Manifest.permission.READ_PHONE_STATE)) &&
   (CheckPermission(this, Manifest.permission.NFC))) {
   PermHandling();
  } else {
   RequestPermission(MainActivity.this, Manifest.permission.CAMERA, REQUEST_PERMISSION);
   RequestPermission(MainActivity.this, Manifest.permission.READ_PHONE_STATE, REQUEST_PERMISSION);
   RequestPermission(MainActivity.this, Manifest.permission.NFC, REQUEST_PERMISSION);

   //NewPermHandling();
  }

 }

 private void PermHandling() {
  //My app internal parts....
  //Here my stuff works...
 }

 //private void NewPermHandling(){

 //}

 @Override
 public void onRequestPermissionsResult(int permissionRequestCode, String[] permissions, int[] grantResults) {
  if (permissionRequestCode != REQUEST_PERMISSION) {
   return;
  }

  if (grantResults.length && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
   PermHandling();
  } else {
   // Ask the user to grant the permission
  }
 }

 public void RequestPermission(Activity thisActivity, String Permission, int Code) {
  if (ContextCompat.checkSelfPermission(thisActivity,
    Permission) !=
   PackageManager.PERMISSION_GRANTED) {
   if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity,
     Permission)) {} else {
    ActivityCompat.requestPermissions(thisActivity,
     new String[] {
      Permission
     },
     Code);
   }
  }
 }

 public final static int REQUEST_CODE = -1010101;

 @RequiresApi(api = Build.VERSION_CODES.M)
 public void checkDrawOverlayPermission() {
  Log.v("App", "Package Name: " + getApplicationContext().getPackageName());

  // Check if we already  have permission to draw over other apps
  if (!Settings.canDrawOverlays(context)) {
   Log.v("App", "Requesting Permission" + Settings.canDrawOverlays(context));
   // if not construct intent to request permission
   Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
    Uri.parse("package:" + getApplicationContext().getPackageName()));
   // request permission via start activity for result 
   startActivityForResult(intent, REQUEST_CODE); //It will call onActivityResult Function After you press Yes/No and go Back after giving permission
  } else {
   Log.v("App", "We already have permission for it.");
   // disablePullNotificationTouch();
   // Do your stuff, we got permission captain
  }
 }

 @TargetApi(Build.VERSION_CODES.M)
 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  Log.v("App", "OnActivity Result.");
  //check if received result code
  //  is equal our requested code for draw permission
  if (requestCode == REQUEST_CODE) {
   if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    if (Settings.canDrawOverlays(this)) {
     // Permission Granted by Overlay
     // Do your Stuff
    }
   }
  }
 }

 public boolean CheckPermission(Context context, String Permission) {
  if (ContextCompat.checkSelfPermission(context,
    Permission) == PackageManager.PERMISSION_GRANTED) {
   return true;
  } else {
   return false;
  }
 }
}
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如果你从一个活动而不是从服务中调用它,startActivityForResult将调用onActivityResult.在这里阅读更多相关信息

  • 根据[开发者文档](https://developer.android.com/reference/android/Manifest.permission)，没有名为“android.permission.ACTION_MANAGE_OVERLAY_PERMISSION”的权限——而是明确表示这是一个要调用的设置操作. 或者我在这里错过了什么？在我的大约 14k 应用程序示例中，只有 4 个应用程序要求此“权限”。还有更多使用`android.permission.SYSTEM_ALERT_WINDOW`。 (2认同)

Raj*_*ela 5

您检查的第二个帖子清楚地显示了检查 SYSTEM_ALERT_WINDOW 权限的方式。但简单地解释一下，

正如developer.android.com 上提到的

允许应用使用 TYPE_SYSTEM_ALERT 类型创建窗口，显示在所有其他应用的顶部。很少有应用程序应该使用此权限；这些窗口用于与用户进行系统级交互。

注意：如果应用面向 API 级别 23 或更高级别，应用用户必须通过权限管理屏幕明确授予应用此权限。应用程序通过发送带有操作 ACTION_MANAGE_OVERLAY_PERMISSION 的意图来请求用户的批准。应用程序可以通过调用 Settings.canDrawOverlays() 来检查它是否具有此授权。

正如您检查的 SO帖子中所述，

以下是简化步骤：-

  1. 首先通过 if 条件检查当前设备 SDK 版本是否大于或等于 Android M (23)

    if (android.os.Build.VERSION.SDK_INT >= 23) {
}
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  2. 然后使用 developer.android.com 中提到的 Settings.canDrawOverlays() 检查您的应用程序是否已经拥有权限，我们将检查没有权限

    if (android.os.Build.VERSION.SDK_INT >= 23 && !Settings.canDrawOverlays(this)) {
}
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  3. 然后如 developer.android.com 中所述，并在 SO 帖子中实现触发 ACTION_MANAGE_OVERLAY_PERMISSION 的意图。

    if (android.os.Build.VERSION.SDK_INT >= 23 && !Settings.canDrawOverlays(this)) {   //Android M Or Over
   Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName()));
   startActivityForResult(intent, <YOUR REQUEST CODE>);
   return;
}
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  4. 在 Activity 中定义的 onActivityResult() 方法中处理结果，并再次使用 Settings.canDrawOverlays() 检查如果仍然没有，则在向用户显示适当的警报后完成() 活动。

您可以在其他权限流程完成后实施整个流程。

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