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add invalidateOptionsMenuIf(), for working with action bar in a

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safe-before-sdk-11 way
This commit is contained in:
Eric House 2013-10-01 07:41:59 -07:00
parent f4881dd00e
commit 4abc9623f9
1 changed files with 25 additions and 0 deletions
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25
xwords4/android/XWords4/src/org/eehouse/android/xw4/Utils.java
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@ -72,6 +72,24 @@ public class Utils {
private static Boolean s_hasSmallScreen = null; private static Boolean s_hasSmallScreen = null;
private static Random s_random = new Random(); private static Random s_random = new Random();
private static interface SafeInvalOptionsMenu {
public void doInval( Activity activity );
}
private static class SafeInvalOptionsMenuImpl
implements SafeInvalOptionsMenu {
public void doInval( Activity activity ) {
activity.invalidateOptionsMenu();
}
}
private static SafeInvalOptionsMenu s_safeInval = null;
static {
int sdkVersion = Integer.valueOf( android.os.Build.VERSION.SDK );
if ( 11 <= sdkVersion ) {
s_safeInval = new SafeInvalOptionsMenuImpl();
}
}
private Utils() {} private Utils() {}
public static int nextRandomInt() public static int nextRandomInt()
@ -358,6 +376,13 @@ public class Utils {
item.setEnabled( enabled ); item.setEnabled( enabled );
} }
public static void invalidateOptionsMenuIf( Activity activity )
{
if ( null != s_safeInval ) {
s_safeInval.doInval( activity );
}
}
public static boolean hasSmallScreen( Context context ) public static boolean hasSmallScreen( Context context )
{ {
if ( null == s_hasSmallScreen ) { if ( null == s_hasSmallScreen ) {