锁定 Android 手机应用程序到肖像模式

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最佳答案

Yes. Add android:screenOrientation="portrait" to the manifest under your main activity.

<activity android:name=".yourActivity" android:screenOrientation="portrait"... />

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Yes! It's an attribute of the activity tag:

<activity android:name=".yourActivity" android:screenOrientation="portrait" ... />

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Also, you may have to add the following to your activity element:

android:configChanges="keyboardHidden"

That way, the OS won't change the orientation when the user opens a sliding keyboard.

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None of these answers worked on my system but I did find the following worked perfectly for a simple app that I developed:

Within MainActivity.java add:

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

to onCreate ()

This is mine:

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}

I know that it is not (always) best practice locking orientation, but in special circumstances it is valid and I only want this temporarily while I continue developing.