ProgressDialog的使用-------------范例(学习笔记)

-------------------------------XML------------------------

<?xml version="1.0" encoding="utf-8"?>
<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="horizontal"
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.example.dialog.MainActivity">

    <Button
android:id="@+id/button_cicle"
android:text="圆形进度条"
android:layout_weight="1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
    <Button
android:id="@+id/button_long"
android:text="长形进度条"
android:layout_weight="1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>

----------------------------------------MainActivity--------------------------------------

package com.example.dialog;

import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
    Button buttoncicle;
    Button buttonlong;
    ProgressDialog myDialog;
    @Override
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        buttoncicle=(Button)this.findViewById(R.id.button_cicle);
        buttonlong=(Button)this.findViewById(R.id.button_long);
        buttoncicle.setOnClickListener(new View.OnClickListener() { //圆形进度条监听
@Override
public void onClick(View view) {
                myDialog=new ProgressDialog(MainActivity.this);     //创建ProgressDialog对象
myDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);    //设置进度条形状为圆形
myDialog.setTitle("提示");    //设置进度条标题信息
myDialog.setMessage("数据加载中,请稍后...");    //设置进度条的提示信息
myDialog.setIcon(R.mipmap.ic_launcher);     //设置进度条的图标
myDialog.setCancelable(true);       //设置进度条是否可通过按返回键取消
myDialog.setIndeterminate(false);       //设置进度条是否不明确
myDialog.setButton("确定", new DialogInterface.OnClickListener() {
                    @Override
public void onClick(DialogInterface dialogInterface, int i) {
                        myDialog.dismiss(); //撤销进度条
}
                });
                myDialog.show();    //显示进度条
}
        });
        buttonlong.setOnClickListener(new View.OnClickListener() {
            int count=0;
            @Override
public void onClick(View view) {
                myDialog=new ProgressDialog(MainActivity.this);
                myDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);     //设置进度条形状为长条形
myDialog.setTitle("提示");
                myDialog.setMessage("数据加载中,请稍后...");
                myDialog.setIndeterminate(false);   //设置进度条是否为不明确
myDialog.setCancelable(true);
                myDialog.setIcon(R.mipmap.ic_launcher);
                myDialog.setMax(200);   //设置进度条的最大值为200
myDialog.setSecondaryProgress(100); //设置第二进度条的值为100
myDialog.setButton("取消", new DialogInterface.OnClickListener() {
                    @Override
public void onClick(DialogInterface dialogInterface, int i) {
                        myDialog.cancel();
                    }
                });
                myDialog.show();    //显示进度条
new Thread(){   //定义线程,动态改变当前进度条的值
public void run(){
                        while (count<=200){
                            myDialog.setProgress(count++);  //设置当前进度条的值
try{
                                Thread.sleep(100);  //暂停0.1秒
}catch (InterruptedException e){
                                e.printStackTrace();
                            }
                        }
                    }

                }.start();
            }
        });
    }
}