@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_paper_change); View decorView = getWindow().getDecorView(); int option = View.SYSTEM_UI_FLAG_FULLSCREEN; decorView.setSystemUiVisibility(option); ActionBar actionBar = getSupportActionBar(); actionBar.hide(); initView(); image.setImageResource(R.drawable.renminribao); } //new一个handle来计算无操作的时间 private Handler mHandler = new Handler(); private final Runnable mGotoOtherPageTask = new Runnable() { @Override public void run() { gotoOtherPage(); } }; @Override protected void onResume() { super.onResume(); // 当前界面打开时,设置一个延迟自动执行的跳转任务 postDelayTask(); } @Override protected void onStop() { super.onStop(); mHandler.removeCallbacks(mGotoOtherPageTask);//移除任务 } @Override public boolean dispatchTouchEvent(MotionEvent event) {//此方法会检测到用户操作,但不会把点击事件吃掉,点击事件依然会正常执行下去 int action = event.getAction() & MotionEvent.ACTION_MASK; switch (action) { case MotionEvent.ACTION_DOWN: // 当发生触摸事件时,重新设置自动任务 postDelayTask(); break; default: break; } return super.dispatchTouchEvent(event); } /** * 跳转到其他界面 */ private void gotoOtherPage() { Intent intent = new Intent(this, MainActivity.class); startActivity(intent); } private void postDelayTask() { // 先将之前的任务移除,如果存在的话 mHandler.removeCallbacks(mGotoOtherPageTask); // 延迟5000毫秒执行跳转任务 mHandler.postDelayed(mGotoOtherPageTask, 5000); }