Android开发之环形进度条(安卓默认…

.xml
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".MainActivity" >
android:id="@+id/mybut" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="查找网络"/>

.java
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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