标签:android blog io ar sp div on art log
private int mBackKeyPressedTimes = 0; @Override public void onBackPressed() { if (mBackKeyPressedTimes == 0) { Toast.makeText(this, "再次按返回键退出", Toast.LENGTH_SHORT).show(); mBackKeyPressedTimes = 1; new Thread() { @Override public void run() { try { Thread.sleep(2000); } catch (InterruptedException e) { e.printStackTrace(); } finally { mBackKeyPressedTimes = 0; } } }.start(); return; } super.onBackPressed(); }
标签:android blog io ar sp div on art log
原文地址:http://www.cnblogs.com/noodlesonce/p/4067403.html