为对话框创建阴影

时间:2013-04-03 11:40:39

标签: android android-layout android-ui

我想为我的自定义对话框创建一个阴影吗?

GhazalActivity.public void viewShareMenu() {
        Dialog share=new Dialog(this,R.style.shareDialogStyle);
        share.setContentView(R.layout.share_popup_layout);
        LayoutParams params = share.getWindow().getAttributes();
        params.y = this.getResources().getDimensionPixelSize(R.dimen.topbar_height);
        params.gravity=(Gravity.RIGHT|Gravity.TOP);
        share.getWindow().setAttributes(params);
        share.show();
}

styles.xml:

<style name="shareDialogStyle" parent="android:style/Theme.Dialog">
    <item name="android:windowBackground">@color/transparent</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:fadeEnabled">true</item>
    <item name="android:fadeDuration">1500</item>
    <item name="android:shadowColor">@color/temp</item>
    <item name="android:shadowDx">0</item>
    <item name="android:shadowDy">5</item>
    <item name="android:shadowRadius">10</item>
    <item name="android:backgroundDimEnabled">false</item>
</style>

share_popup_layout.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="150dip"
    android:background="@color/bg_Ghazal_share_menu"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="right"
        style="@style/shareDialogButtons"/>
</LinearLayout>

有没有解决方法呢?

2 个答案:

答案 0 :(得分:6)

我创建了自己的自定义对话框,带有阴影,您可以根据需要使用它,在第一步中,您应该为阴影和对话框框架创建Android形状。这是我提供的内容( dialog_frame_shadow.xml ):

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle"> <!-- this shape is used as shadow -->
            <padding android:bottom="5dp"
                android:left="5dp"
                android:right="5dp"
                android:top="5dp"/>
            <solid android:color="#44000000"/>
            <corners android:radius="5dp"/>
        </shape>
    </item>
    <item>
        <shape android:shape="rectangle"> <!-- this is for dialog frame -->
            <corners android:radius="5dp"/>
            <stroke android:color="#ff272727" android:width="2dp" />
            <gradient android:angle="90"
                android:startColor="#ffa7a7a7"
                android:centerColor="#ff6a6a6a"
                android:endColor="#ffa7a7a7"
                android:type="linear"/>
        </shape>
    </item>
</layer-list>

在下一步中,您应该按照以下内容更改对话框主题:

 <style name="my_dialog_theme">
     ...
     <item name="android:windowBackground">@drawable/dialog_frame_shadow</item>
     ...
 </style>

现在你已经完成了,只需创建Dialog类的新实例并将此主题应用于它(在Dialog构造函数中):

Dialog dialog = new Dialog(this, R.style.my_dialog_theme);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.mdialog);
dialog.show();

这是截图:
enter image description here

答案 1 :(得分:1)

试试这个,创建一个xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
  <gradient
    android:startColor="#ffffff"
    android:centerColor="#d3d7cf"
    android:endColor="#2e3436"
    android:angle="90" />
</shape>

创建一个View并将xml设置为其背景,如:

 <View android:id="@+id/divider" android:background="@drawable/black_white_gradient"

    android:layout_width="match_parent" android:layout_height="5sp"
     <!--greater the height, more wider the shadow-->
   />

现在,如果你想在视图的左侧放置阴影,请将此视图与左视图对齐,如果你想在底部有阴影,请在你的视图下对齐此视图...希望你现在可以得到它