Android屏幕亮度调节
SeekBar seekBar = (SeekBar) findViewById(R.id.seekBar);// 进度条绑定最大亮度，255是最大亮度seekBar.setMax(255);// 取得当前亮度int normal = Settings.System.getInt(getContentResolver(),Settings.System.SCREEN_BRIGHTNESS, 255);// 进度条绑定当前亮度seekBar.setProgress(normal);seekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {@Overridepublic void onStopTrackingTouch(SeekBar seekBar) {// 取得当前进度int tmpInt = seekBar.getProgress();// 当进度小于80时，设置成80，防止太黑看不见的后果。if (tmpInt < 80) {tmpInt = 80;}// 根据当前进度改变亮度Settings.System.putInt(getContentResolver(),Settings.System.SCREEN_BRIGHTNESS, tmpInt);tmpInt = Settings.System.getInt(getContentResolver(),Settings.System.SCREEN_BRIGHTNESS, -1);WindowManager.LayoutParams wl = getWindow().getAttributes();float tmpFloat = (float) tmpInt / 255;if (tmpFloat > 0 && tmpFloat <= 1) {wl.screenBrightness = tmpFloat;}getWindow().setAttributes(wl);}@Overridepublic void onStartTrackingTouch(SeekBar seekBar) {// TODO Auto-generated method stub}@Overridepublic void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {// TODO Auto-generated method stub}});