如何在安卓系统中限制横屏显示？

Question

在安卓系统中如何限制横屏模式？

- Praveen

Answer 1

您的问题非常简短，但我相信您在问如何限制Activity的显示方向。为此，请尝试在Manifest文件中使用<Activity>标记中的android:screenOrientation。

https://developer.android.com/guide/topics/manifest/activity-element.html#screen

- Mark B

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@mbaird 有没有一种方法可以在活动内部完成？比如说，如果发生某些事件，我希望用户无法更改屏幕配置。 - Arnab Chakraborty

Answer 2

您可以按照以下定义设置活动参数。

<activity android:allowTaskReparenting=["true" | "false"]
          android:alwaysRetainTaskState=["true" | "false"]
          android:clearTaskOnLaunch=["true" | "false"]
          android:configChanges=["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" | "nosensor"]
          android:stateNotNeeded=["true" | "false"]
          android:taskAffinity="string"
          android:theme="resource or theme"
          android:windowSoftInputMode=["stateUnspecified",
                                       "stateUnchanged", "stateHidden",
                                       "stateAlwaysHidden", "stateVisible",
                                       "stateAlwaysVisible", "adjustUnspecified",
                                       "adjustResize", "adjustPan"] >   
    . . .
</activity>

- Vishal Khakhkhar

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太棒了，伙计...真的很棒。 - Paresh Thakor