<?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: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.hanqi.testapp2.TestActivity4"

     android:orientation="vertical">

     <ProgressBar

         android:layout_width="match_parent"

         android:layout_height="wrap_content"

         style="?android:attr/progressBarStyleHorizontal"

         android:progress="0"

         android:secondaryProgress="0"

         android:max="80"

         android:id="@+id/pb_1"/>

     <ProgressBar

         android:layout_width="match_parent"

         android:layout_height="wrap_content"

         style="?android:attr/progressBarStyleLarge"

         android:id="@+id/pb_2"/>

     <SeekBar

         android:layout_width="match_parent"

         android:layout_height="wrap_content"

         android:progress="0"

         android:max="80"

         android:secondaryProgress="0"

         android:id="@+id/se_1"/>

     <RatingBar

         android:layout_width="wrap_content"

         android:layout_height="wrap_content"

         android:numStars="5"

         android:rating="3.5"

         android:isIndicator="true"/>

 </LinearLayout>

 package com.hanqi.testapp2;

 import android.app.AlertDialog;

 import android.os.Bundle;

 import android.support.v7.app.AppCompatActivity;

 import android.util.Log;

 import android.view.View;

 import android.widget.ProgressBar;

 import android.widget.SeekBar;

 public class TestActivity4 extends AppCompatActivity {

     SeekBar se_1;

     ProgressBar pb_1;

     ProgressBar pb_2;

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.activity_test4);

         se_1 = (SeekBar)findViewById(R.id.se_1);

         pb_1 = (ProgressBar)findViewById(R.id.pb_1);

         pb_2 = (ProgressBar)findViewById(R.id.pb_2);

         AlertDialog alertDialog = new AlertDialog.Builder(this).create();

         se_1.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

             //进度变化触发

             @Override

             public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

                 //设置进度条1的进度值

                 pb_1.setProgress(progress);

                 //判断是否达到最大值

                 if(progress ==se_1.getMax())

                 {

                     pb_2.setVisibility(View.INVISIBLE);//不显示但位置还保留

                 }

                 else

                 {

                     pb_2.setVisibility(View.VISIBLE);

                 }

                 //只要progress变化就会触发

                 //Toast.makeText(TestActivity4.this, "当前进度 = "+progress, Toast.LENGTH_SHORT).show();

             }

             @Override

             public void onStartTrackingTouch(SeekBar seekBar) {

                 Log.e("TAG","进度条开始拖动");

             }

             @Override

             public void onStopTrackingTouch(SeekBar seekBar) {

                 Log.e("TAG","进度条停止拖动");

             }

         });

     }

 }