锁屏方向（Android）

发布于 2024-10-11 10:16:43 字数 384 浏览 2 评论 0原文

我正在编写一个 Android 应用程序，它使用具有不同内容（活动）的选项卡。在其中一项活动中，我想将屏幕方向锁定为“横向”模式，但在其他活动中，我想要正常方向（根据传感器）。

我现在正在做的是，

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

当我切换到横向模式活动以及

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);

切换回其他活动时，我会进行调用。然而，这似乎不起作用，整个应用程序被锁定。解决这个问题的正常方法是什么？

原文

I'm writing an android application that uses tabs with different contents (activities).
In one of these activities, I would like to lock the screen orientation to "Landscape"-mode,
but in the other activities, I want the normal orientation (according to sensor).

What I'm doing now is that I'm calling

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

when I switch to the landscape mode activity, and

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);

when I switch back to the other activities. However, this doesn't seem to work,
the whole application locks up. What is the normal approach to this problem?

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雾里花 2024-10-18 10:16:44

在清单中，您可以将 screenOrientation 设置为横向。它在 XML 中看起来像这样：

<activity android:name="MyActivity"
android:screenOrientation="landscape"
android:configChanges="keyboardHidden|orientation|screenSize">
...
</activity>

其中 MyActivity 是您想要保持在横向状态的活动。

android:configChanges=... 行可防止在屏幕旋转时调用 onResume()、onPause()。如果没有这条线，轮换将按照您的要求进行，但仍会进行呼叫。

注意： keyboardHidden 和 orientation 是 keyboardHidden 和 orientation 所必需的。 Android 3.2（API 级别 13），并且所有三个选项都需要 3.2 或更高版本，而不仅仅是 orientation。

In the Manifest, you can set the screenOrientation to landscape. It would look something like this in the XML:

<activity android:name="MyActivity"
android:screenOrientation="landscape"
android:configChanges="keyboardHidden|orientation|screenSize">
...
</activity>

Where MyActivity is the one you want to stay in landscape.

The android:configChanges=... line prevents onResume(), onPause() from being called when the screen is rotated. Without this line, the rotation will stay as you requested but the calls will still be made.

Note: keyboardHidden and orientation are required for < Android 3.2 (API level 13), and all three options are required 3.2 or above, not just orientation.

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强者自强 2024-10-18 10:16:44

我有类似的问题。

当我

<activity android:name="MyActivity" android:screenOrientation="landscape"></activity>

在清单文件中输入时，这导致该活动以横向方式显示。然而，当我返回之前的活动时，即使它们被设置为纵向，它们也会以横向显示。但是，通过在目标活动的 OnCreate 部分之后立即添加

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

可以解决问题。所以我现在两种方法都用。

I had a similar problem.

When I entered

<activity android:name="MyActivity" android:screenOrientation="landscape"></activity>

In the manifest file this caused that activity to display in landscape. However when I returned to previous activities they displayed in lanscape even though they were set to portrait. However by adding

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

immediately after the OnCreate section of the target activity resolved the problem. So I now use both methods.

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无法回应 2024-10-18 10:16:44

在项目的 Android 清单文件中，找到要修复方向的活动声明并添加以下代码，

android:screenOrientation="landscape"

对于横向方向和纵向添加以下代码，

android:screenOrientation="portrait"

inside the Android manifest file of your project, find the activity declaration of whose you want to fix the orientation and add the following piece of code ,