第 8 章 Schedule 计划任务

		
	new Handler().postDelayed(() -> {
        picture.browsePictureFolder();
    }, 30000);		
		
		

		
    new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            MainActivity.this.finish();
        }
    }, 1800);		
		
		

Android 11

		
	new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
        public void run() {
            progressBar.setVisibility(View.INVISIBLE);
        }
    }, 3000);		
		
		

循环执行

		
		Handler handler = new Handler(Looper.getMainLooper());
        handler.postDelayed(new Runnable() {
            int count = 5;

            @Override
            public void run() {
                handler.postDelayed(this, 1000);
                runOnUiThread(() -> {
                    binding.textViewAdSkip.setText(String.format("逃过 %d", count));
                });
                count = count - 1;
                if (count == 0) {
                    handler.removeCallbacks(this);
                    binding.frameLayoutAd.setVisibility(View.INVISIBLE);
                    binding.frameLayoutFullscreen.setVisibility(View.VISIBLE);
                }
            }
        }, 1000);