倒计时和点击倒计时跳转

简单倒计时，无点击倒计时跳转（倒计时五秒）：
1.handler倒计时

private TextView tv_num;   //xml里面的id  

//数字数量为4
private int count=4;
private String[] str={"一","二","三","四"};
//接受信息
private Handler handler = new Handler(new Handler.Callback(){
    @Override
    public boolean handleMessage(@NonNull Message msg) {
        tv_num.setText(str[count]);
        //如果数字为一跳转到列表页面
        if(tv_num.getText().toString().equals("一")){
            Intent intent = new Intent(MainActivity.this,ListViewActivity.class);
            startActivity(intent);
        }
        return false;
    }
});

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initView();
}

private void initView() {
    tv_num = (TextView) findViewById(R.id.tv_num);
    //创建线程
    new Thread(new Runnable() {
        @Override
        public void run() {
            while (count>0){
                try {
                    //线程休眠一秒
                    Thread.sleep(1000);
                    //发送消息
                    handler.sendEmptyMessage(0);
                    count--;
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }).start();
}

2.timer倒计时

private int time = 2;
    @Override
    protected void initView() {
        Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        time--;
                        if(time==0){
                            startActivity(new Intent(SplashActivity.this,HomeActivity.class));
                            finish();
                        }
                    }
                });
            }
        }, 0, 1000);
    }

*仅供参考，后续更新