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Android Json and null values
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Try with json.isNull( "field-name" ).
Reference: http://developer.android.com/reference/org/json/JSONObject.html#isNull%28java.lang.String%29
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How to create loading dialogs in Android?
...g progress dialogs in the Amazon and Engadget apps - are those standard in Android?
2 Answers
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Optimising Android application before release [closed]
...d and can be improved (for instance by using merging or removing parents). Android tool layoutopt will find such a situation for you. It can be used with HierarchyViewer for inspecting individual views. More info here.
remove the background drawable - Android framework used to have (does it still ha...
How to empty (clear) the logcat buffer in Android [duplicate]
How can I empty (clear) the logcat buffer in Android?
4 Answers
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Set EditText Digits Programmatically
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Try this:
<EditText
android:inputType="number"
android:digits="0123456789."
/>
From Code:
weightInput.setKeyListener(DigitsKeyListener.getInstance("0123456789."));
But, it allows the user to include several "."
See JoeyRA's answer fo...
Android Fatal signal 11 (SIGSEGV) at 0x636f7d89 (code=1). How can it be tracked down?
...the other posts on tracking down the reasons for getting a SIGSEGV in an Android app. I plan to scour my app for possible NullPointers related to Canvas use, but my SIGSEGV barfs up a different memory address each time. Plus I've seen code=1 and code=2 . If the memory address was 0x00000000 ...
How to open standard Google Map application from my application?
...d to show particular location. How can I do it? (without using com.google.android.maps.MapView )
9 Answers
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Android Replace “…” with ellipsis character
... a character width)). Non-breaking is useful everywhere, I'm not aware of Android rendering them correctly in other langs though, nor am I aware of UTF characters for this purpose.
– Groxx
Dec 30 '13 at 23:33
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Android - How to get application name? (Not package name)
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This works fine, as long as you really use a label in android:name. If you hardcoded a string, then it fails.
– Snicolas
Aug 29 '13 at 15:20
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How to create our own Listener interface in android?
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In the year of 2018, there's no need for listeners interfaces. You've got Android LiveData to take care of passing the desired result back to the UI components.
If I'll take Rupesh's answer and adjust it to use LiveData, it will like so:
public class Event {
public LiveData<EventResult>...