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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:andro>
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.hanqi.testapp2.TestActivity6"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="城市1"
android:id="@+id/tv_3"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="城市2"
android:id="@+id/tv_4"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="启动"
android:onClick="bt1_OnClick"/>
</LinearLayout>
View Code
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package com.hanqi.testapp2;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import java.util.Random;
public class TestActivity6 extends AppCompatActivity {
TextView tv_3;
TextView tv_4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test6);
tv_3=(TextView)findViewById(R.id.tv_3);
tv_4=(TextView)findViewById(R.id.tv_4);
}
String c1="北京";
String c2="香港";
public void bt1_OnClick(View v)
{
tv_3.setText("");
tv_4.setText("");
//创建子线程1
new Thread(){
@Override
public void run() {
for (int i=0;i<10;i++)
{
runOnUiThread(new Runnable() {
@Override
public void run() {
tv_3.setText(tv_3.getText()+c1);
}
});
try {
//暂停时间随机
Thread.sleep(new Random().nextInt(2000));
}
catch (Exception e)
{
}
}
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(TestActivity6.this,c1+ "循环完成", Toast.LENGTH_SHORT).show();
}
});
}
}.start();
//创建子线程2 实现接口
new Thread(){
@Override
public void run() {
for (int i=0;i<10;i++)
{
runOnUiThread(new Runnable() {
@Override
public void run() {
tv_4.setText(tv_4.getText()+c2);
}
});
try {
//暂停时间随机
Thread.sleep(new Random().nextInt(2000));
}
catch (Exception e)
{
}
}
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(TestActivity6.this,c2+ "循环完成", Toast.LENGTH_SHORT).show();
}
});
}
}.start();
}
}
