Android 进度条

 <?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"
     tools:context="com.example.administrator.android.TestActivity4"
     android:orientation="vertical">
     <!--进度条-->
     <ProgressBar
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         style="?android:attr/progressBarStyleHorizontal"
         android:progress="30"
         android:secondaryProgress="67"
         android:max="100"
         android:id="@+id/pb_1"/>
     <!-- 旋转进度条-->
     <ProgressBar
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         style="?android:attr/progressBarStyleLarge"
         android:id="@+id/pb_2"
         android:visibility="gone"/>
     <!-- 可拖动进度条-->
     <SeekBar
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:progress="0"
         android:secondaryProgress="0"
         android:max="80"
         android:id="@+id/se_1"/>
     <!--星级进度条-->
     <RatingBar
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:numStars="10"
         android:rating="5.5"
         android:isIndicator="true"/>
 </LinearLayout>

 package com.example.administrator.android;

 import android.app.AlertDialog;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.View;
 import android.widget.ProgressBar;
 import android.widget.SeekBar;
 import android.widget.Toast;

 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);

         se_1.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
 //           进度改变触发
             @Override
             public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                 //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 但位置仍然保留
                 }
                 else
                 {
                     pb_2.setVisibility(View.VISIBLE);
                 }
 //                只要progress变化就被触发
 //                Toast.makeText(TestActivity4.this, "当前进度 = "+progress, Toast.LENGTH_SHORT).show();
             }
 //           开始拖动
             @Override
             public void onStartTrackingTouch(SeekBar seekBar) {

                 Log.e("TAG","进度条开始拖动");
             }
 //          结束拖动
             @Override
             public void onStopTrackingTouch(SeekBar seekBar) {
                 Log.e("TAG","进度条停止拖动");
             }
         });
     }
 }

 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.administrator.android">

     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
         <activity android:name=".MainActivity">
         </activity>
         <activity android:name=".TestActivity4">
             <intent-filter>
             <action android:name="android.intent.action.MAIN" />
             <category android:name="android.intent.category.LAUNCHER" />
         </intent-filter>
         </activity>
     </application>

 </manifest>