AndroidManifest.xml中Activity ConfigChanges属性的用法

淩亂°似流年 2022-08-11 03:26 181阅读 0赞

#  通过设置这个属性可以使Activity捕捉设备状态变化，以下是可以被识别的内容：   #

CONFIG\_FONT\_SCALE

CONFIG\_MCC

CONFIG\_MNC

CONFIG\_LOCALE

CONFIG\_TOUCHSCREEN

CONFIG\_KEYBOARD

CONFIG\_NAVIGATION

CONFIG\_ORIENTATION

设置方法：将下列字段用“|”符号分隔开，例如：“ locale|navigation|orientation  
”

<table style="color:rgb(51,51,51); font-family:Arial; font-size:13.63636302947998px; line-height:26px"> 
 <tbody> 
 <tr> 
 <td>Value</td> 
 <td>Description</td> 
 </tr> 
 <tr> 
 <td>“mcc“</td> 
 <td>The IMSI mobile country code (MCC) has changed — that is, a SIM hasbeen detected and updated the MCC.移动国家号码，由三位数字组成，每个国家都有自己独立的MCC，可以识别手机用户所属国家。</td> 
 </tr> 
 <tr> 
 <td>“mnc“</td> 
 <td>The IMSI mobile network code (MNC) has changed — that is, a SIM hasbeen detected and updated the MNC.移动网号，在一个国家或者地区中，用于区分手机用户的服务商。</td> 
 </tr> 
 <tr> 
 <td>“locale“</td> 
 <td>The locale has changed — for example, the user has selected a new language that text should be displayed in.用户所在地区发生变化。</td> 
 </tr> 
 <tr> 
 <td>“touchscreen“</td> 
 <td>The touchscreen has changed. (This should never normally happen.)</td> 
 </tr> 
 <tr> 
 <td>“keyboard“</td> 
 <td>The keyboard type has changed — for example, the user has plugged in an external keyboard.键盘模式发生变化，例如：用户接入外部键盘输入。</td> 
 </tr> 
 <tr> 
 <td>“keyboardHidden“</td> 
 <td>The keyboard accessibility has changed — for example, the user has slid the keyboard out to expose it.用户打开手机硬件键盘</td> 
 </tr> 
 <tr> 
 <td>“navigation“</td> 
 <td>The navigation type has changed. (This should never normally happen.)</td> 
 </tr> 
 <tr> 
 <td>“orientation“</td> 
 <td>The screen orientation has changed — that is, the user has rotated the device.设备旋转，横向显示和竖向显示模式切换。</td> 
 </tr> 
 <tr> 
 <td>“fontScale“</td> 
 <td>The font scaling factor has changed — that is, the user has selected a new global font size.全局字体大小缩放发生改变</td> 
 </tr> 
 </tbody> 
</table>

通过一个例子介绍这个属性的用法：  首先需要修改项目的manifest:  
[?][Link 1]   XML

<table style="color:rgb(51,51,51); font-family:Arial; font-size:13.63636302947998px; line-height:26px"> 
 <tbody> 
 <tr> 
 <td>&lt;manifest&nbsp;xmlns:android="http://schemas.android.com/apk/res/android" &nbsp; &nbsp;&nbsp; &nbsp;package="com.androidres.ConfigChangedTesting" &nbsp; &nbsp;&nbsp; &nbsp;android:versionCode="1" &nbsp; &nbsp;&nbsp; &nbsp;android:versionName="1.0.0"&gt; &nbsp; &nbsp;&nbsp;&lt;application&nbsp;android:icon="@drawable/icon"&nbsp;android:label="@string/app_name"&gt; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&lt;activity&nbsp;android:name=".ConfigChangedTesting" &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;android:label="@string/app_name" &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;android:configChanges="keyboardHidden|orientation"&gt; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&lt;intent-filter&gt; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&lt;action&nbsp;android:name="android.intent.action.MAIN"&nbsp;/&gt; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&lt;category&nbsp;android:name="android.intent.category.LAUNCHER"&nbsp;/&gt; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&lt;/intent-filter&gt; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&lt;/activity&gt; &nbsp; &nbsp;&nbsp;&lt;/application&gt; &lt;/manifest&gt;</td> 
 </tr> 
 </tbody> 
</table>

在Activity中添加了 android:configChanges属性，目的是当所指定属性(Configuration Changes)发生改变时，通知程序调用 onConfigurationChanged()函数

转自：http://blog.csdn.net/super005/article/details/6307338

[Link 1]: http://www.ericbess.com/ericblog/2008/03/03/wp-codebox/#examples