本文简单介绍下Android之自定义ProgressBar。
多的不说，先上图
activity_main.xml
<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=".MainActivity"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world"
android:padding="5dp" />
<ProgressBar
android:id="@+id/progress1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp"
/>
<ProgressBar
android:id="@+id/progress2"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:max="100"
android:progress="60"
android:secondaryProgress="80"
android:padding="5dp"/>
<ProgressBar
android:id="@+id/progress3"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:max="100"
android:progress="60"
android:secondaryProgress="80"
android:progressDrawable="@drawable/progress_horizontal"
android:padding="5dp"/>
<ProgressBar
android:id="@+id/progress4"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="fill_parent"
android:layout_height="25dp"
android:max="100"
android:progress="80"
android:paddingLeft="1dp"
android:paddingRight="1dp"
android:progressDrawable="@drawable/progressbar_layer_list"
android:padding="5dp"/>
<ProgressBar
android:id="@+id/progress5"
android:layout_width="30dip"
android:layout_height="30dip"
android:indeterminateDrawable="@drawable/progress_selector"
android:visibility="visible"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="progress value"
android:padding="5dp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="value -"/>
<Button
android:id="@+id/btn2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="value +"/>
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="second progress value"
android:padding="5dp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/btn3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="value -"/>
<Button
android:id="@+id/btn4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="value +"/>
</LinearLayout>
</LinearLayout>
progress_horizontal.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@android:id/background"
android:drawable="@color/red">
</item>
<item android:id="@android:id/secondaryProgress">
<scale
android:drawable="@color/green"
android:scaleWidth="100%" />
</item>
<item android:id="@android:id/progress">
<scale
android:drawable="@color/blue"
android:scaleWidth="100%" />
</item>
</layer-list>progressbar_layer_list.xml
<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@android:id/background" android:drawable="@drawable/pic2"> </item> <item android:id="@android:id/progress" android:drawable="@drawable/pic1"> </item> </layer-list>
progress_selector.xml
<?xml version="1.0" encoding="UTF-8"?> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:pivotX="50%" android:pivotY="50%" android:fromDegrees="0" android:toDegrees="360"> <shape android:shape="ring" android:innerRadiusRatio="3" android:thicknessRatio="8" android:useLevel="false"> <gradient android:type="sweep" android:useLevel="false" android:startColor="#871318" android:centerColor="#D5202A" android:centerY="0.50" android:endColor="#FFEEEE"/> </shape> </rotate>
package com.sl.progressbardemo;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.ProgressBar;
import android.app.Activity;
public class MainActivity extends Activity
{
private ProgressBar mProgressBar2;
private ProgressBar mProgressBar3;
private ProgressBar mProgressBar4;
private Button mButton1;
private Button mButton2;
private Button mButton3;
private Button mButton4;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.activity_main);
setProgressBarVisibility(true);
mProgressBar2 = (ProgressBar)findViewById(R.id.progress2);
mProgressBar3 = (ProgressBar)findViewById(R.id.progress3);
mProgressBar4 = (ProgressBar)findViewById(R.id.progress4);
mButton1 = (Button)findViewById(R.id.btn1);
mButton2 = (Button)findViewById(R.id.btn2);
mButton3 = (Button)findViewById(R.id.btn3);
mButton4 = (Button)findViewById(R.id.btn4);
mButton1.setOnClickListener(listener);
mButton2.setOnClickListener(listener);
mButton3.setOnClickListener(listener);
mButton4.setOnClickListener(listener);
}
Button.OnClickListener listener = new OnClickListener()
{
@Override
public void onClick(View v)
{
Button button = (Button)v;
switch (button.getId())
{
case R.id.btn1:
mProgressBar2.incrementProgressBy(-5);
mProgressBar3.incrementProgressBy(-5);
mProgressBar4.incrementProgressBy(-5);
break;
case R.id.btn2:
mProgressBar2.incrementProgressBy(5);
mProgressBar3.incrementProgressBy(5);
mProgressBar4.incrementProgressBy(5);
break;
case R.id.btn3:
mProgressBar2.incrementSecondaryProgressBy(-5);
mProgressBar3.incrementSecondaryProgressBy(-5);
break;
case R.id.btn4:
mProgressBar2.incrementSecondaryProgressBy(5);
mProgressBar3.incrementSecondaryProgressBy(5);
break;
default:
break;
}
}
};
}
原文地址：http://blog.csdn.net/bingdianlanxin/article/details/43956331
