Android 按键 在视频播放器下，按键调节亮度与视频播放器图标UI不同步

Posted 2022-01-05 王睿丶

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

在 interceptKeyBeforeDispatching()

播放视频时，拦截亮度事件

++  android.app.ActivityManager am =  (android.app.ActivityManager) mContext.getSystemService(ACTIVITY_SERVICE);
++  android.content.ComponentName cn = am.getRunningTasks(1).get(0).topActivity;
++  if ("android.rk.RockVideoPlayer.VideoPlayActivity".equals(cn.getClassName()) || "com.android.gallery3d.app.MovieActivity".equals(cn.getClassName()))
++                    return 0;
//调节亮度效果
                Settings.System.putFloatForUser(mContext.getContentResolver(),
                        Settings.System.SCREEN_BRIGHTNESS_FLOAT, brightnessFloat,
                        UserHandle.USER_CURRENT_OR_SELF);

// 启动亮度对话框
                startActivityAsUser(new Intent(Intent.ACTION_SHOW_BRIGHTNESS_DIALOG),
                       UserHandle.CURRENT_OR_SELF);