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When would you use a List instead of a Dictionary?
...
When you don't need fast lookups on key - maintaining the hashtable used by Dictionary has a certain overhead.
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Why does JPA have a @Transient annotation?
...he transient keyword, that field will not be serialized when the object is converted to a byte stream. Furthermore, since JPA treats fields marked with the transient keyword as having the @Transient annotation, the field will not be persisted by JPA either.
On the other hand, fields annotated @Tra...
How can I remove duplicate rows?
...you have a GUID instead of an integer, you can replace
MIN(RowId)
with
CONVERT(uniqueidentifier, MIN(CONVERT(char(36), MyGuidColumn)))
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How to show a dialog to confirm that the user wishes to exit an Android Activity?
...want to close this activity?")
.setPositiveButton("Yes", new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
})
.setNegativeButton("No", null)
.show();
}
In earlier v...
Android file chooser [closed]
...ad one. I believe the best you can do is look for "openable" content in an Intent.createChooser() like this:
private static final int FILE_SELECT_CODE = 0;
private void showFileChooser() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
intent.addCategor...
How can I get the current screen orientation?
...
int orientation = this.getResources().getConfiguration().orientation;
if (orientation == Configuration.ORIENTATION_PORTRAIT) {
// code for portrait mode
} else {
// code for landscape mode
}
When the superclass of t...
Should accessing SharedPreferences be done off the UI Thread?
...eference {
public static void saveLocalPreferences(Activity activity, int maxDistance, int minAge,
int maxAge, boolean showMale, boolean showFemale) {
Filter filter = new Filter();
filter.setMaxDistance(maxDistance);
filter.se...
Fit Image in ImageButton in Android
...ton.
but where as some images cover less area, some are too big to fit into the imageButton. How to programatically resize and show them?
Use a android:scaleType="fitCenter" to have Android scale the images, and android:adjustViewBounds="true" to have them adjust their bounds due to scaling.
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ViewPager with Google Maps API v2: mysterious black view
I have integrated the new google maps api v2 fragment in a view pager. When scrolling from the map fragment, a black view overlaps the adjacent fragments. Someone has solved?
...
Android map v2 zoom to show all the markers
... a movement description object by using the factory: CameraUpdateFactory:
int padding = 0; // offset from edges of the map in pixels
CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, padding);
Finally move the map:
googleMap.moveCamera(cu);
Or if you want an animation:
googleMap.a...