一、通过动画实现
定义res/anim/loading.xml如下:
<?xml version="1.0" encoding="UTF-8"?><animation-list android:oneshot="false"xmlns:android="http://schemas.android.com/apk/res/android"> <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:id="@+id/loading_process_dialog_progressBar" android:layout_width="wrap_content" android:layout_height="wrap_content" android:indeterminate="false" android:indeterminateDrawable="@anim/loading" />
二、通过自定义颜色实现
定义res/drawable/dialog_style_xml_color.xml如下:
<?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="#FFFFFF" android:centerColor="#FFDC35" android:centerY="0.50" android:endColor="#CE0000" /> </shape></rotate>
在layout文件中引用如下:
<ProgressBar android:id="@+id/loading_process_dialog_progressBar" android:layout_width="wrap_content" android:layout_height="wrap_content" android:indeterminate="false" android:indeterminateDrawable="@drawable/dialog_style_xml_color" />
三、使用一张图片进行自定义
定义res/drawable/dialog_style_xml_icon.xml如下:
<?xml version="1.0" encoding="utf-8"?><layer-list xmlns:android="http://schemas.android.com/apk/res/android"><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:id="@+id/loading_process_dialog_progressBar" 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:android="http://schemas.android.com/apk/res/android"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:id="@+id/anim" android:layout_width="120dip" android:layout_height="wrap_content" /><Button android:text="@string/color" android:id="@+id/color" android:layout_width="120dip" android:layout_height="wrap_content" /><Button android:text="@string/icon" android:id="@+id/icon" android:layout_width="120dip" android:layout_height="wrap_content" /></LinearLayout>
之后通过三个按钮将ProgressBar 放在对话框中显示出来就完成了。