【IT168 技术】很多网友对于Android全局配置文件AndroidManifest.xml不是很熟悉，今天我们就一起看下它完整的结构以及每个节点的作用。在我们日常的开发中都少不了下面的配置，每创建一个Activity、Service都离不开这个全局配置文件，深入的了解可以简化程序代码以及提高程序的维护性。
在最外层包含了包名如 package="cn.android123.demo" 、软件的版本号 android:versionCode="1" 以及 android:versionName="1.0" ，里面一层的application分支中将可能包含Android程序的四种对象 Activity、Service、Content Provider以及Receiver。我们每添加上面四个类型中的任一新对象都需要在androidmanifest.xml文件中添加相应节点。
其中Activity的属性常用的可能为android:name和android:label但我们需要了解所有的属性以帮助解决复杂的问题，完整的如下:
android:allowTaskReparenting=["true" | "false"]
android:alwaysRetainTaskState=["true" | "false"]
android:clearTaskOnLaunch=["true"" | "false"]
android:configChanges=[one or more of: "mcc" "mnc" "locale"
"touchscreen" "keyboard" "keyboardHidden"
"navigation" "orientation" "fontScale"]
android:enabled=["true" | "false"]
android:excludeFromRecents=["true" | "false"]
android:exported=["true" | "false"]
android:finishOnTaskLaunch=["true" | "false"]
android:icon="drawable resource"
android:label="string resource"
android:launchMode=["multiple" | "singleTop" |
"singleTask" | "singleInstance"]
android:multiprocess=["true" | "false"]
android:name="string"
android:noHistory=["true" | "false"]
android:permission="string"
android:process="string"
android:screenOrientation=["unspecified" | "user" | "behind" |
"landscape" | "portrait" |
"sensor" | "nonsensor"]
android:stateNotNeeded=["true" | "false"]
android:taskAffinity="string"
android:theme="resource or theme"
android:windowSoftInputMode=[one or more of: "stateUnspecified"
"stateUnchanged" "stateHidden"
"stateAlwaysHidden" "stateVisible"
"stateAlwaysVisible" "adjustUnspecified"
"adjustResize" "adjustPan"] >
android:alwaysRetainTaskState=["true" | "false"]
android:clearTaskOnLaunch=["true"" | "false"]
android:configChanges=[one or more of: "mcc" "mnc" "locale"
"touchscreen" "keyboard" "keyboardHidden"
"navigation" "orientation" "fontScale"]
android:enabled=["true" | "false"]
android:excludeFromRecents=["true" | "false"]
android:exported=["true" | "false"]
android:finishOnTaskLaunch=["true" | "false"]
android:icon="drawable resource"
android:label="string resource"
android:launchMode=["multiple" | "singleTop" |
"singleTask" | "singleInstance"]
android:multiprocess=["true" | "false"]
android:name="string"
android:noHistory=["true" | "false"]
android:permission="string"
android:process="string"
android:screenOrientation=["unspecified" | "user" | "behind" |
"landscape" | "portrait" |
"sensor" | "nonsensor"]
android:stateNotNeeded=["true" | "false"]
android:taskAffinity="string"
android:theme="resource or theme"
android:windowSoftInputMode=[one or more of: "stateUnspecified"
"stateUnchanged" "stateHidden"
"stateAlwaysHidden" "stateVisible"
"stateAlwaysVisible" "adjustUnspecified"
"adjustResize" "adjustPan"] >
