android定时器、消息任务与问题解决

int times = getTimes();
final int[] i = {times};
Timer timer = new Timer();

// 生成文件

// 解决Can't create handler inside thread that has not called Looper.prepare()问题
Looper.prepare();

final Handler handler = new Handler() {
    public void handleMessage(Message msg) {
        if (msg.what == 1) {
            doThing(filePath, p_data);
        }
        super.handleMessage(msg);
    };
};
Looper.loop();

// 采集中...
final int[] iDataIndex = {0};
TimerTask task = new TimerTask() {
    @Override
    public void run() {
        doThings();

        i[0]--;
        // 完成采集
        if(i[0] == 0) {

            Message message = new Message();
            message.what = 1;
            handler.sendMessage(message);

            cancel();
        }
    }
};

// 开始采集
timer.schedule(task, 0, 1000); // 0s后执行task,经过100ms再次执行