无法在锁定屏幕前获取我的活动

Question

我想将我的活动放在锁定屏幕前面。我添加了我在互联网上看到的任何内容作为在锁定屏幕上打印活动的标志。

但在某些设备上我无法实现这一点：华为、小米等

public class MyActivity extends AppCompatActivity() {

private void adjustScreen() {
 
getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN |
WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR |
WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM |
WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS | 
WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM |
WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED |
WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |
WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON |
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON |
WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON);
        
        
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
    setShowWhenLocked(true);
    setTurnScreenOn(true);
        
    (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE)
    .requestDismissKeyguard(this, null);
  }
}

清单：

 <activity
   android:name=".MyActivity"
   android:configChanges="locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|screenSize|fontScale"
   android:excludeFromRecents="true"
   android:exported="true"
   android:launchMode="singleTask"
   android:screenOrientation="portrait"
   android:showOnLockScreen="true"
   android:showWhenLocked="true"
   android:turnScreenOn="true"/>

Answer 1

它仅适用于这些行：

getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON |
                WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED |
                WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);