android开发中,有很多的功能在实际应用中都起了很大的作用,比如android进度条的实现方式,下面给大家介绍android环形进度条(安卓默认形式),具体内容如下所示:
.xml
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<linearlayout xmlns:android= "http://schemas.android.com/apk/res/android"
xmlns:tools= "http://schemas.android.com/tools"
android:layout_width= "match_parent"
android:layout_height= "match_parent"
android:orientation= "vertical"
tools:context= ".mainactivity" >
<button
android:id= "@+id/mybut"
android:layout_width= "wrap_content"
android:layout_height= "wrap_content"
android:text= "查找网络" />
</linearlayout>
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.java
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package com.example.progressdialog;
import android.os.bundle;
import android.app.activity;
import android.app.progressdialog;
import android.view.view;
import android.view.view.onclicklistener;
import android.widget.button;
public class mainactivity extends activity {
private button but= null ;
@override
protected void oncreate(bundle savedinstancestate) {
super .oncreate(savedinstancestate);
setcontentview(r.layout.activity_main);
this .but=(button) super .findviewbyid(r.id.mybut);
this .but.setonclicklistener( new onclicklistenerimp());
}
public class onclicklistenerimp implements onclicklistener{
public void onclick(view v) {
//创建我们的进度条
final progressdialog prodia= new progressdialog(mainactivity. this );
prodia.settitle( "搜索网络" );
prodia.setmessage( "请耐心等待" );
prodia.onstart();
//匿名内部类
new thread(){
public void run(){
try {
thread.sleep( 3000 );
}
catch (exception e){
}
finally {
//匿名内部类要访问类当中的数据,该数据必须为final
prodia.dismiss(); //隐藏对话框
}
}
}.start();
prodia.show();
}
}
}
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以上内容是小编给大家介绍的android环形进度条(安卓默认形式)的相关知识,希望对大家有所帮助!