閱讀778 返回首頁    go 阿裏雲 go 技術社區[雲棲]

android自定義ProgressBar（仿淘寶）的加載效果

三種方式實現自定義圓形頁麵加載中效果的進度條 

To get a ProgressBar in the default theme that is to be used on white/light back ground, use one of the inverse styles: 
<ProgressBar /> 
<ProgressBar /> 
<ProgressBar /> 

進度條 

<ProgressBar android:layout_width="fill_parent" android:layout_height="wrap_content"   />

一、通過動畫實現 
定義res/anim/loading.xml如下： 

<?xml version="1.0" encoding="UTF-8"?>
<animation-list android:oneshot="false"
  xmlns:andro>
  <item android:duration="150" android:drawable="@drawable/loading_01" />
  <item android:duration="150" android:drawable="@drawable/loading_02" />
  <item android:duration="150" android:drawable="@drawable/loading_03" />
  <item android:duration="150" android:drawable="@drawable/loading_04" />
  <item android:duration="150" android:drawable="@drawable/loading_05" />
  <item android:duration="150" android:drawable="@drawable/loading_06" />
  <item android:duration="150" android:drawable="@drawable/loading_07" />
</animation-list>

在layout文件中引用如下： 

<ProgressBar android:
  android:layout_width="wrap_content" android:layout_height="wrap_content"
  android:indeterminate="false" android:indeterminateDrawable="@anim/loading" />

二、通過自定義顏色實現 
定義res/drawable/dialog_style_xml_color.xml如下： 

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:andro
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="#FFFFFF" android:centerColor="#FFDC35"
   android:centerY="0.50" android:endColor="#CE0000" />
</shape>
</rotate>

在layout文件中引用如下： 

<ProgressBar android:
  android:layout_width="wrap_content" android:layout_height="wrap_content"
  android:indeterminate="false" android:indeterminateDrawable="@drawable/dialog_style_xml_color" />

三、使用一張圖片進行自定義 
定義res/drawable/dialog_style_xml_icon.xml如下： 

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:andro>
<item>
  <rotate android:drawable="@drawable/dialog_progress_round"
   android:fromDegrees="0.0" android:toDegrees="360.0" android:pivotX="50.0%"
   android:pivotY="50.0%" />
</item>
</layer-list>

在layout文件中引用如下： 

<ProgressBar android:
  android:layout_width="wrap_content" android:layout_height="wrap_content"
  android:indeterminate="false" android:indeterminateDrawable="@drawable/dialog_style_xml_icon" />

main.xml如下： 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:andro
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:gravity="center"
android:background="#FFF">
<Button android:text="@string/anim" android:
  android:layout_width="120dip" android:layout_height="wrap_content" />
<Button android:text="@string/color" android:
  android:layout_width="120dip" android:layout_height="wrap_content" />
<Button android:text="@string/icon" android:
  android:layout_width="120dip" android:layout_height="wrap_content" />
</LinearLayout>


CountDown.zip (286.6 KB)

最後更新：2017-04-02 16:47:36

  上一篇：go android 仿淘寶的加載刷新效果
  下一篇：go Android Cocos2d實現：一個圖片圍繞一個圓心做圓運動