public class MainActivity extends Activity{
private WindowManager wm;
private View myView;
private Button button;
private SharedPreferences sp;
private final static String DAY = "day";
private final static String NIGHT = "night";
private int flage = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
setContentView(R.layout.activity_main);
sp = this.getSharedPreferences("skinchange", Context.MODE_PRIVATE);
button = (Button) findViewById(R.id.btn_dayAndnight);
String mode = sp.getString("skin", "");
if(mode!=null||!mode.equals("")){
if(mode.equals(NIGHT)){
night();
}else{
day();
}
}
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
SharedPreferences sp2=getSharedPreferences("aa", MODE_APPEND);
int flage=sp2.getInt("bb", 0);
if(flage%2==0){
night();
button.setText("白天模式");
button.setTextColor(Color.WHITE);
flage++;
}else{
day();
button.setText("夜间模式");
button.setTextColor(Color.BLACK);
flage++;
}
SharedPreferences sp1=getSharedPreferences("aa", MODE_APPEND);
Editor ed=sp1.edit();
ed.putInt("bb", flage);
ed.commit();
}
});
}
public void night() {
WindowManager.LayoutParams params = new WindowManager.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT,
LayoutParams.TYPE_APPLICATION,
WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
params.gravity=Gravity.BOTTOM;
params.y=10;
if(myView==null){
myView=new TextView(this);
myView.setBackgroundColor(0x80000000);
}
wm.addView(myView, params);
Editor edit = sp.edit();
edit.putString("skin", NIGHT);
edit.commit();
}
public void day(){
if(myView!=null){
wm.removeView(myView);
Editor edit = sp.edit();
edit.putString("skin", DAY);
edit.commit();
}
}
}