我在那里,我的应用程序上有一个搜索栏来更改亮度及其工作。然后问题是,当我按下后退按钮导航到另一个活动时,亮度会恢复到默认值..
这是我更改亮度的代码:
private void applyBrightnessListener() {
SeekBar brightnessControl = (SeekBar) findViewById(R.id.brightnessControl);
brightnessControl.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) {
// TODO Auto-generated method stub
float BackLightValue = (float)arg1/100;
WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
layoutParams.screenBrightness = BackLightValue;
getWindow().setAttributes(layoutParams);
android.provider.Settings.System.putInt(
GeneralSettings.this.getContentResolver(),
android.provider.Settings.System.SCREEN_BRIGHTNESS,
(int)BackLightValue);
}
@Override
public void onStartTrackingTouch(SeekBar arg0) {
// TODO Auto-generated method stub
}
@Override
public void onStopTrackingTouch(SeekBar arg0) {
// TODO Auto-generated method stub
}
});
}
非常感谢提前;)