android 自己定义水平和圆形progressbar 仅仅定义一些style就能够

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效果图:

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改动progressbar 让他满足自己的需求一般来说仅仅改动一下,progressbar的style就能够满足需求了:

activity代码:只显示一个布局而已

package com.example.testcustomprogressbar;import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;public class MainActivity extends Activity {@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}

xml界面:

第一种圆形progressbar 只让一个图片旋转起来:

style的代码:

progressbar_ver_image的代码:

<?xml version="1.0" encoding="utf-8"?>

<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:drawable="@drawable/resizeapi"
android:fromDegrees="0"
android:pivotX="50%"
android:pivotY="50%"
android:toDegrees="360" ></rotate>

另外一种圆形progressbar 使用一个动画:

style:

progressbar_ver_animation的代码:

<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android" > <item
android:drawable="@drawable/ok1"
android:duration="250"/>
<item
android:drawable="@drawable/ok2"
android:duration="250"/>
<item
android:drawable="@drawable/ok3"
android:duration="250"/>
<item
android:drawable="@drawable/ok4"
android:duration="250"/></animation-list>

第三种圆形progressbar 使用shape来构建drawable:

progressbar_ver_shape的代码:

<?xml version="1.0" encoding="utf-8"?>

<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromDegrees="0"
android:pivotX="50%"
android:pivotY="50%"
android:toDegrees="360" >
<shape
android:innerRadiusRatio="3"
android:shape="ring"
android:thicknessRatio="8"
android:useLevel="false" >
<gradient
android:centerColor="#FFFFFF"
android:centerY="0.50"
android:endColor="#1E90FF"
android:startColor="#000000"
android:type="sweep"
android:useLevel="false" />
</shape></rotate>

第四种: 横向progressbar 复制粘贴系统的style,然后改动:

<?xml version="1.0" encoding="utf-8"?><layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@android:id/background">
<shape>
<corners android:radius="5dip" />
<gradient
android:startColor="#ffff0000"
android:centerColor="#ffff0000"
android:centerY="0.75"
android:endColor="#ffff0000"
android:angle="270"
/>
</shape>
</item> <item android:id="@android:id/secondaryProgress">
<clip>
<shape>
<corners android:radius="5dip" />
<gradient
android:startColor="#800000ff"
android:centerColor="#800000ff"
android:centerY="0.75"
android:endColor="#800000ff"
android:angle="270"
/>
</shape>
</clip>
</item> <item android:id="@android:id/progress"
>
<clip > <shape>
<corners android:radius="5dip" />
<gradient
android:startColor="#ff00ff00"
android:centerColor="#ff00ff00"
android:centerY="0.75"
android:endColor="#ff00ff00"
android:angle="270"
/>
</shape>
</clip>
</item></layer-list>

这样直接在progressbar中引用该style就能够满足需求了,当然我们也能够把progressbar background progress secondprogress都分别定义成一个drawable,然后使用:

background:

progress:

secondprogress:

这个时候style中的代码就会清晰一点:

<?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/progressbar_hor_bg">
</item>
<item android:id="@android:id/secondaryProgress">
<clip android:drawable="@drawable/progressbar_hor_second_progress" >
</clip>
</item>
<item android:id="@android:id/progress">
<clip android:drawable="@drawable/progressbar_hor_progress" >
</clip>
</item> 

</layer-list>