Force Close on Changing time: Time Picker (NPE)

Question

When I click on the time picker for changing the time I get force close.

Can anybody tell me where is the problem in my code. Android. and this is my code......

Answer 1

Changing the theme of my application to android:Theme.Black in my AndroidManifest.xml. solved the problem for me.

adding this style to styles.xml

The style of my fragment looks different but now it works.

Update: I have fixed this issue without changing the style, adding the property android:descendantFocusability="blocksDescendants" to my TimePicker

<TimePicker
    android:id="@+id/toTimePicker"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:descendantFocusability="blocksDescendants" />

Answer 2

As said, it seems to be a known bug. A possible work-around can be iterating through children until you find EditText and set it "focusable" property to false.

Recursively,

// level is just a counter for reading better Logs
private void hideFocusable(ViewGroup vg, int level)
{
    for(int i=0; i < vg.getChildCount(); i++) 
    {
        try
        {
               ViewGroup vt = (ViewGroup) vg.getChildAt(i);
               Log.i("NODE",level+") "+ vg.getChildAt(i).getClass().getName()); 

               hideFocusable(vt, level+1);

        }catch (ClassCastException e) {
                View vf = (View) vg.getChildAt(i);

                Log.i("LEAF",level+") "+ vf.getClass().getName());

                // here you can pick EditText and setFocusable to false 
                if(vf.getClass().equals(EditText.class))
                   vf.setFocusable(false);

        }

    }
}

Answer 3

This is a known native android bug. See bug #24387 in Android Bug Tracker.