Force "portrait" orientation mode

I'm trying to force the "portrait" mode for my application because my application is absolutely not designed for the "landscape" mode.

After reading some forums, I added these lines in my manifest file:

<application 
  android:debuggable="true"
  android:icon="@drawable/icon" 
  android:label="@string/app_name"
  android:screenOrientation="portrait">

But it doesn't work on my device (HTC Desire). It switches from "portrait" lo "landscape", ignoring the lines from the manifest file.

After more forums reading, I tried to add this in my manifest file:

<application 
  android:debuggable="true"
  android:icon="@drawable/icon" 
  android:label="@string/app_name"
  android:configChanges="orientation"       
  android:screenOrientation="portrait">

and this function in my activity class:

public void onConfigurationChanged(Configuration newConfig)
{
    super.onConfigurationChanged(newConfig);
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}

But again, no luck.

---

Don't apply the orientation to the application element, instead you should apply the attribute to the activity element, and you must also set configChanges as noted below.

Example:

<activity
   android:screenOrientation="portrait"
   android:configChanges="orientation|keyboardHidden">
</activity>

This is applied in the manifest file AndroidManifest.xml .

---

Note that

android:screenOrientation="portrait"     
android:configChanges="orientation|keyboardHidden"

is added in the manifest file - where the activity is defined.

---

I think android:screenOrientation="portrait" can be used for individual activities. So use that attribute in <activity> tag like :

<activity android:name=".<Activity Name>"
    android:label="@string/app_name" 
    android:screenOrientation="portrait">
   ...         
</activity>

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