日夜间模式切换

public class MainActivity extends Activity {

private WindowManager mWindowManger;

// 设置夜间模式

private SharedPreferences skinSp;

private final static String DAY = "day";

private final static String NIGHT = "night";

private boolean isDay;

private View myView;

private ImageView imageView_night;

private TextView text_night;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

mWindowManger = (WindowManager) getSystemService(WINDOW_SERVICE);

imageView_night = (ImageView) findViewById(R.id.image_night);

text_night = (TextView) findViewById(R.id.text);

imageView_night.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

if (isDay) {

night();

imageView_night

.setImageResource(R.drawable.dayicon_leftdrawer_normal_night);

text_night.setText("日间");

} else {

day();

imageView_night

.setImageResource(R.drawable.nighticon_leftdrawer_normal);

text_night.setText("夜间");

}

isDay = !isDay;

skinSp.edit().putBoolean("isDay", isDay).commit();

}

});

init();

}

public void next(View v) {

startActivity(new Intent(this, SecondActivity.class));

}

// 日间夜间模式切换

private void init() {

skinSp = getSharedPreferences("skinchange", MODE_PRIVATE);

String mode = skinSp.getString("skin", "");

if (mode != null || !mode.equals("")) {

if (mode.equals(NIGHT)) {

night();

isDay = false;

} else {

day();

isDay = true;

}

}

}

@SuppressLint("ResourceAsColor")

private void night() {

@SuppressWarnings("deprecation")

WindowManager.LayoutParams params = new WindowManager.LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT, |||||||||||||||||||此处应该导import android.view.WindowManager.LayoutParams;

LayoutParams.TYPE_APPLICATION,

WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE

| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,

PixelFormat.TRANSLUCENT);

params.gravity = Gravity.CENTER;

// params.y = 10;

if (myView == null) {

myView = new View(this);

myView.setBackgroundColor(0x80000000);

}

mWindowManger.addView(myView, params);

Editor edit = skinSp.edit();

edit.putString("skin", NIGHT);

edit.commit();

}

private void day() {

if (myView != null) {

mWindowManger.removeView(myView);

Editor edit = skinSp.edit();

edit.putString("skin", DAY);

edit.commit();

}

}

@Override

public void onDestroy() {

super.onDestroy();

String mode = skinSp.getString("skin", "");

if (mode.equals(NIGHT)) {

removeSkin();

}

}

public void removeSkin() {

if (myView != null) {

mWindowManger.removeView(myView);

}

}

}