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package com.example.tianfei.cldevicesdkdemo;
import android.os.Handler;
import android.os.Message;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.TimerTask;
/**
* @author LuoSiYe
* Created on 2017/4/17.
*/
public class MyTimerTask extends TimerTask {
private ArrayList<String> data;
private TextView textView;
private int index = 0;
public MyTimerTask(TextView text) {
init();
textView = text;
}
private void init() {
data = new ArrayList<>();
data.add("0");
data.add("1");
data.add("2");
data.add("3");
data.add("4");
data.add("5");
data.add("6");
data.add("7");
data.add("8");
data.add("9");
}
@Override
public void run() {
if (index == 9)
index = 0;
Message message = new Message();
myHandler.sendMessage(message);
index++;
}
private Handler myHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
textView.setText(data.get(index));
}
};
}
测试类：
package com.example.tianfei.cldevicesdkdemo;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import java.util.Timer;
/**
* @author LuoSiYe
* Created on 2017/4/17.
*/
public class TestActivity extends Activity {
private TextView testText;
private MyTimerTask myTimerTask;
private Timer mTimer;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test);
init();
}
private void init() {
testText = (TextView) findViewById(R.id.test_text);
startTimer(testText);
}
private void startTimer(TextView view) {
if (mTimer == null) {
mTimer = new Timer();
myTimerTask = new MyTimerTask(view);
mTimer.schedule(myTimerTask, 0, 1000);
}
}
}
没有测试，你本人测试一下，大致是这样。
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