package com.example.myapplication;import android.app.ProgressDialog;import android.content.DialogInterface;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.Toast;public class MainActivity extends AppCompatActivity implements View.OnClickListener {  ProgressDialog prodialog;  Button show;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    show = (Button) findViewById(R.id.show);    show.setOnClickListener(this);  }  @Override  public void onClick(View view) {    prodialog = new ProgressDialog(MainActivity.this);    prodialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);    prodialog.setTitle("VEVB武林網");    prodialog.setMessage("jb51");    prodialog.setIcon(R.mipmap.ic_launcher);    //設計進度條屬性    prodialog.setMax(100);    prodialog.incrementProgressBy(50);    //明確顯示進度    prodialog.setIndeterminate(false);    prodialog.setButton(DialogInterface.BUTTON_POSITIVE,"確定",    new DialogInterface.OnClickListener() {      @Override      public void onClick(DialogInterface dialogInterface, int i) {        Toast.makeText(MainActivity.this,"hello",Toast.LENGTH_LONG).show();      }    });    prodialog.setCancelable(true);    prodialog.show();  }}

<?xml version="1.0" encoding="utf-8"?><RelativeLayout  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:paddingLeft="@dimen/activity_horizontal_margin"  android:paddingRight="@dimen/activity_horizontal_margin"  android:paddingTop="@dimen/activity_vertical_margin"  android:paddingBottom="@dimen/activity_vertical_margin"  tools:context="com.example.myapplication.MainActivity">  <Button    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:text="顯示進度天對話框"    android:id="@+id/show"    android:layout_alignParentLeft="true"    android:layout_alignParentStart="true" /></RelativeLayout>