Progressbar的使用以及ListView的使用

本文主要是介绍Progressbar的使用以及ListView的使用，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ProgressBar
android:id="@+id/progressOne"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="?android:attr/progressBarStyleHorizontal"
android:visibility="gone"
/>

<ProgressBar
android:id="@+id/progressTwo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="?android:attr/progressBarStyle"
android:visibility="gone"
/>

<Button
android:id="@+id/buttonprogress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/login"
/>

</LinearLayout>

package com.example.helloworld;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;

public class ProgreeeBarTest extends Activity {

private ProgressBar first;
private ProgressBar second;
private Button button;
private int i=0;

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

//获取对象
first=(ProgressBar)findViewById(R.id.progressOne);
second=(ProgressBar)findViewById(R.id.progressTwo);
button=(Button)findViewById(R.id.buttonprogress);

button.setOnClickListener(new ButtonOnClickListener() );

}

class ButtonOnClickListener implements OnClickListener{

@Override
public void onClick(View view) {
if(i==0){
//第一次单机按钮，进度条会显示
first.setVisibility(View.VISIBLE);
second.setVisibility(View.VISIBLE);
}else if(i<first.getMax()){
//显示进度条的进度
first.setProgress(i);
first.setSecondaryProgress(i+10);
}else{
//如果读取完毕，进度条消失
first.setVisibility(View.GONE);
second.setVisibility(View.GONE);
}
i=i+10;
}

}
}

ListView的使用

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<LinearLayout
android:id="@+id/listLinearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>

<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawSelectorOnTop="false"
android:scrollbars="vertical"
>
</ListView>

</LinearLayout>

</LinearLayout>

user.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<LinearLayout
android:id="@+id/listLinearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>

<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawSelectorOnTop="false"
android:scrollbars="vertical"
>
</ListView>

</LinearLayout>

</LinearLayout>

package com.example.helloworld;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.SimpleAdapter;

public class ListView extends ListActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mylistview);

List<HashMap<String,String>> list=new ArrayList<HashMap<String,String>>();
HashMap<String,String> map1=new HashMap<String,String>();
HashMap<String,String> map2=new HashMap<String,String>();
HashMap<String,String> map3=new HashMap<String,String>();
map1.put("user_name", "zhangsan");
map1.put("user_ip", "192.168.1.3");
map2.put("user_name", "lisi");
map2.put("user_ip", "192.168.1.4");
map3.put("user_name", "wangwu");
map3.put("user_ip", "192.168.1.5");

SimpleAdapter adapter=new SimpleAdapter(this, list, R.layout.user, new String[]{"user_name","user_ip"}, new int[]{R.id.user_name,R.id.user_ip});
setListAdapter(adapter);
}

@Override
protected void onListItemClick(android.widget.ListView l, View v,
int position, long id) {
System.out.println(position+" "+id);
//id 就是第几个
super.onListItemClick(l, v, position, id);
}

}