Android 解决：第三方浏览器调节亮度导致播放视频卡顿

Posted 2022-02-09 王睿丶

方法一：

frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java

思路：若当前界面的软件报名包含：browser 这样的英文，则认定为用户当前打开的是浏览器，不允许调节亮度

@Override
    public long interceptKeyBeforeDispatching(IBinder focusedToken, KeyEvent event,int policyFlags) 
               else if (keyCode == KeyEvent.KEYCODE_BRIGHTNESS_UP  || keyCode == KeyEvent.KEYCODE_BRIGHTNESS_DOWN) 
                               Settings.System.putFloatForUser(mContext.getContentResolver(),
                        Settings.System.SCREEN_BRIGHTNESS_FLOAT, brightnessFloat,
                        UserHandle.USER_CURRENT_OR_SELF);
                //wangrui Solve the problem of freezing when playing videos in third-party browsers
++                if (cn.getPackageName().contains("browser"))
++                    return 0;
++                
                startActivityAsUser(new Intent(Intent.ACTION_SHOW_BRIGHTNESS_DIALOG),
                        UserHandle.CURRENT_OR_SELF);

方法二：
frameworks/base/packages/SystemUI/src/com/android/systemui/settings/BrightnessDialog.java

思路：调节亮度时不允许弹出亮度对话框

 @Override
    protected void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
++        finish();
  

方法三：
frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
思路：调节亮度时，不启动亮度对话框，只改变亮度值

 @Override
    public long interceptKeyBeforeDispatching(IBinder focusedToken, KeyEvent event,
                                              int policyFlags) 
 else if (keyCode == KeyEvent.KEYCODE_BRIGHTNESS_UP
                || keyCode == KeyEvent.KEYCODE_BRIGHTNESS_DOWN) 
//                startActivityAsUser(new Intent(Intent.ACTION_SHOW_BRIGHTNESS_DIALOG),
//                        UserHandle.CURRENT_OR_SELF);