ANDROID_MARS学习笔记_S01_011ProgressBar

文档是这样来设置样式

 <ProgressBar
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         style="@android:style/Widget.ProgressBar.Small"
         android:layout_marginRight="5dp" />

1.xml

<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: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=".MainActivity" >

    <ProgressBar
        android:id="@+id/firstProgressBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        style="?android:attr/progressBarStyleHorizontal" />

    <Button
        android:id="@+id/firstButton"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/firstProgressBar"
        android:text="增加第一进度"/>

    <Button
        android:id="@+id/secondButton"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/firstButton"
        android:text="增加第二进度"/>

</RelativeLayout>

2.java

 package com.marschen.s01_e17_progressbar;

 import android.app.Activity;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.Button;
 import android.widget.ProgressBar;

 public class MainActivity extends Activity {

     private ProgressBar progressBar;
     private Button firstButton;
     private Button secondButton;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         progressBar = (ProgressBar)findViewById(R.id.firstProgressBar);
         firstButton = (Button)findViewById(R.id.firstButton);
         secondButton = (Button)findViewById(R.id.secondButton);

         progressBar.setMax(100);

         firstButton.setOnClickListener(new FirstListener());
         secondButton.setOnClickListener(new SecondListener());

     }

     class FirstListener implements OnClickListener{

         @Override
         public void onClick(View v) {
             progressBar.incrementProgressBy(10);
         }

     }

     class SecondListener implements OnClickListener{

         @Override
         public void onClick(View v) {
             progressBar.incrementSecondaryProgressBy(20);
         }

     }

     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         // Inflate the menu; this adds items to the action bar if it is present.
         getMenuInflater().inflate(R.menu.main, menu);
         return true;
     }

 }