android中透明Dialog及ProgressDialog的实现

最新推荐文章于 2021-09-07 20:33:50 发布

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最新推荐文章于 2021-09-07 20:33:50 发布

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分类专栏： Android UI 文章标签： android dialog layout encoding null

本文链接：https://blog.youkuaiyun.com/jdsjlzx/article/details/7347531

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首先是一个普通的版本：

 public static final int SHOWDIALOG = 10000;
    @Override
    protected Dialog onCreateDialog(int id) {
    	switch (id) {
		case SHOWDIALOG:
			Dialog dialog = new Dialog(this,R.style.LodingDialog);
			dialog.setContentView(R.layout.dialog);
			return dialog;

		default:
			return null;
		}
    }

dialog.xml

<?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"
    >
<ProgressBar  android:layout_width="wrap_content"   
        android:layout_height="wrap_content"  
        android:layout_gravity="center"  
        style="@android:style/Widget.ProgressBar.Inverse" />
<TextView  android:layout_width="wrap_content"   
        android:layout_height="wrap_content"  
        android:layout_gravity="center"  
        android:text="加载中..." />        
</LinearLayout>

style.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
	<style name="LodingDialog" parent="@android:style/Theme.Dialog">
		<item name="android:windowBackground">@android:color/transparent</item>
	</style>
</resources>

下面是美化版本：

需要用到的图片：

也可以到这里下载：http://download.youkuaiyun.com/detail/jdsjlzx/4138421

layout_progressbar.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
     >

    <ProgressBar
        android:id="@+id/waitingbar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"  
        android:indeterminate="false"
        android:indeterminateDrawable="@drawable/ic_circle_progress" 
         />

    <TextView
        android:id="@+id/emptyView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="loading..."
        android:textSize="12sp"
        android:textAppearance="?android:textAppearanceMedium"
        android:textColor="@color/blue" />

</LinearLayout>

位于drawable目录下：

ic_circle_progress.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list
  xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <rotate android:drawable="@drawable/ic_progress_normal" android:fromDegrees="-315.0" android:toDegrees="0.0" android:pivotX="50.0%" android:pivotY="50.0%" />
    </item>
</layer-list>

style.xml

<style name="new_circle_progress" parent="@android:style/Theme.Dialog">
        <item name="android:indeterminateDrawable">@drawable/ic_circle_progress</item>
        <item name="android:windowFrame">@null</item><!--边框-->
        <item name="android:windowIsFloating">true</item><!--是否浮现在activity之上-->
        <item name="android:windowIsTranslucent">false</item><!--半透明-->
        <item name="android:windowBackground">@color/transparent</item><!--背景透明-->
        <item name="android:backgroundDimEnabled">false</item><!--模糊-->
    </style>

代码：

private final static int PROGRESSFORWAIT = 1000;
	   
	    @Override
	    protected Dialog onCreateDialog(int id, Bundle args) {
	    	// TODO Auto-generated method stub
	    	super.onCreateDialog(id, args);
	    	switch (id) {
	    	case PROGRESSFORWAIT:

	    		Dialog dialog = new Dialog(this,R.style.new_circle_progress);  
	            dialog.setContentView(R.layout.layout_progressbar);  
	            return dialog; 
			default:
				return null;
			}
	    }