Android 之 ProgressDialog

ProgressDialog 类似于ProgressBar,都是用于显示进度，区别是一个是控件一个是对话框。

ProgressDialog有两种形式一个是STYLE_SPINNER，STYLE_HORIZONTAL。

其中前者没有固定值，后者可以设置最大值和当前值。

 

下面直接给出一个实例。

 

 

package com.rocky.demo; import android.app.Activity; import android.app.ProgressDialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class ProgressDialogDemo extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ((Button)this.findViewById(R.id.Button01)).setOnClickListener(btn1Clicker); ((Button)this.findViewById(R.id.Button02)).setOnClickListener(btn2Clicker); } int m_count=0; ProgressDialog prDialog; OnClickListener btn1Clicker=new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub prDialog=new ProgressDialog(ProgressDialogDemo.this); prDialog.setTitle("提示信息"); prDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); prDialog.setMessage("This is a cicle process dialog "); prDialog.setIcon(R.drawable.icon); //进度条是否不明确 prDialog.setIndeterminate(true); prDialog.setCancelable(true); prDialog.setButton("确定", new DialogInterface.OnClickListener(){ @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub prDialog.cancel(); } }); prDialog.show(); } }; OnClickListener btn2Clicker=new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub m_count=0; prDialog=new ProgressDialog(ProgressDialogDemo.this); prDialog.setTitle("提示信息"); prDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); prDialog.setMessage("This is a cicle process dialog "); prDialog.setIcon(R.drawable.icon); //进度条是否不明确 prDialog.setIndeterminate(false); prDialog.setCancelable(true); prDialog.setProgress(200); prDialog.setMax(200); prDialog.setButton("确定", new DialogInterface.OnClickListener(){ @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub prDialog.cancel(); } }); prDialog.show(); new Thread() { @Override public void run() { // TODO Auto-generated method stub //super.run(); try { while(m_count<=200) { prDialog.setProgress(m_count++); Thread.sleep(100); } prDialog.cancel(); } catch(InterruptedException e) { e.printStackTrace(); } } }.start(); } }; }