android最简洁的定时器源代码

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	private int i = 0;
	private TextView tvShow;
	private Timer timer = new Timer();
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		tvShow = (TextView) findViewById(R.id.tv_show);
		timer.schedule(new TimerTask() {
			@Override
			public void run() {
				runOnUiThread(new Runnable() {
					@Override
					public void run() {
						tvShow.setText("counter: " + Integer.toString(i++));
					}
				});
			}
		}, 1000, 1000); // 参数1:TimerTask, 参数2:delay, 参数3: period
	}