android-context
Android: ProgressDialog doesn’t show
you have to call pd.show before the long calculation starts and then the calculation has to run in a separate thread. A soon as this thread is finished, you have to call pd.dismiss() to close the prgoress dialog. here you can see an example: the progressdialog is created and displayed and a thread is called …
Android: why must use getBaseContext() instead of this
getApplicationContext () returns the application context of the entire application life cycle,when application will destroy then it will destroy also. this the context returns the current context of the activity, belong to the activity, the activity is destroyed then it will destroy also.but in your case it will refers to the Spinner instance because we …
Difference between getContext() and requireContext() when using fragments
getContext() returns a nullable Context. requireContext() returns a nonnull Context, or throws an exception when one isn’t available. If your code is in a lifecycle phase where you know your fragment is attached to a context, just use requireContext() to get a Context and also keep static analyzers happy about potential NPE issues. If your …
Write/create file within Android Instrumentation context
I can’t recall when this was changed, but the current method to get a Context object during Instrumented testing is to import import android.support.test.InstrumentationRegistry; and call InstrumentationRegistry.getContext(); Hope this helps!
How do I view Android application specific cache?
You may use this command for listing the files for your own debuggable apk: adb shell run-as com.corp.appName ls /data/data/com.corp.appName/cache And this script for pulling from cache: #!/bin/sh adb shell “run-as com.corp.appName cat ‘/data/data/com.corp.appNamepp/$1’ > ‘/sdcard/$1′” adb pull “/sdcard/$1” adb shell “rm ‘/sdcard/$1′” Then you can pull a file from cache like this: ./pull.sh cache/someCachedData.txt …
Diffinitive rules for using Android’s getBaseContext, getApplicationContext or using an Activity’s “this”
The getBaseContext() is the method of ContextWrapper. And ContextWrapper is, “Proxying implementation of Context that simply delegates all of its calls to another Context. Can be subclassed to modify behavior without changing the original Context.” (as per javadocs) So this is used to delegate the calls to another context.
Get application context from non activity singleton class
Update: 06-Mar-18 Use MyApplication instance instead of Context instance. Application instance is a singleton context instance itself. public class MyApplication extends Application { private static MyApplication mContext; @Override public void onCreate() { super.onCreate(); mContext = this; } public static MyApplication getContext() { return mContext; } } Previous Answer You can get the the application context …