Handler handler=new Handler(Looper.getMainLooper());
handler.post(new Runnable(){
    public void run(){
        Toast.makeText(getApplicationContext() ,"显示Toast在屏幕上！",Toast.LENGTH_LONG).show();
    }
});		
		
		

		
Handler handler = new Handler(Looper.getMainLooper());
handler.post(() -> {
    Toast.makeText(getApplicationContext(), "显示Toast在屏幕上！", Toast.LENGTH_LONG).show();
    notify1();
});