主题样式 Theme.CustomDialog

一、定义一个主题样式 Theme.CustomDialog 实现个性化的对话框。
1、AndroidManifest.xml 文件中，申明 activity 的主题使用自定义对话框样式。

Java 代码
<activity android:name=".app.CustomDialogActivity"
android:label="@string/activity_custom_dialog"
android:theme="@style/Theme.CustomDialog"> //好像应该是android:theme="@style/Theme.Dialog">

<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.SAMPLE_CODE" />
</intent-filter>
</activity>

<activity android:name=".app.CustomDialogActivity" android:label="@string/activity_custom_dialog" android:theme="@style/Theme.CustomDialog"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.SAMPLE_CODE" /> </intent-filter> </activity>

2、res/values/styles.xml 样式文件中定义一个对话框主题样式，这里继承了 android:style/Theme.Dialog 主题，并且窗口样式 android:windowBackground 引用了 @drawable/filled_box
Java 代码
<style name="Theme.CustomDialog" parent="android:style/Theme.Dialog">
<item name="android:windowBackground">@drawable/filled_box</item>
</style>

<style name="Theme.CustomDialog" parent="android:style/Theme.Dialog"> <item name="android:windowBackground">@drawable/filled_box</item> </style>

3、res/drawable/filled_box.xml 定义了 Shape 类型的 drawable（抽象的可画区域），最终是通过这个来实现新对话框的样式。
Java 代码
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#f0600000"/>
<stroke android:width="3dp" color="#ffff8080"/>
<corners android:radius="3dp" />
<padding android:left="10dp" android:top="10dp"
android:right="10dp" android:bottom="10dp" />
</shape>

<shape xmlns:android="http://schemas.android.com/apk/res/android"> <solid android:color="#f0600000"/> <stroke android:width="3dp" color="#ffff8080"/> <corners android:radius="3dp" /> <padding android:left="10dp" android:top="10dp" android:right="10dp" android:bottom="10dp" /> </shape>

二、个性化Dialog小图标，主要代码如下:

Java 代码
Override
protected void onCreate(Bundle savedInstanceState) {
// Be sure to call the super class.
super.onCreate(savedInstanceState);

requestWindowFeature(Window.FEATURE_LEFT_ICON);

// See assets/res/any/layout/dialog_activity.xml for this
// view layout definition, which is being set here as
// the content of our screen.
setContentView(R.layout.dialog_activity);

getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,
android.R.drawable.ic_dialog_alert);
}

Override protected void onCreate(Bundle savedInstanceState) { // Be sure to call the super class. super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_LEFT_ICON); // See assets/res/any/layout/dialog_activity.xml for this // view layout definition, which is being set here as // the content of our screen. setContentView(R.layout.dialog_activity); getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, android.R.drawable.ic_dialog_alert); }

1、申请设置个性化小图标，需在 setContentView(R.layout.dialog_activity) 之前调用。
Java 代码
requestWindowFeature(Window.FEATURE_LEFT_ICON);

requestWindowFeature(Window.FEATURE_LEFT_ICON);

2、设置小图标

Java 代码
getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,
android.R.drawable.ic_dialog_alert);