Android 10: JAVA: How to list all files in a directory
With Android < 10, we can list all files in a directory with this code: File directory = new File(path); File[] files = directory.listFiles(); But…
Tag: Java
Android error: Stopping service due to app idle
Cause: Starting from Android O there is limitation on how freely app can access background Service. Solution: use Foreground Service Step 1: in service: Step…
Java: how to get a File’s Mime Type
Use android.webkit.MimeTypeMap Code snippet java:
Java: MimeTypeMap fail to return extension for a filename contains spaces
Sample error code: Solution: Replace blank space to %20
Android Lesson 15: Broadcast Receiver
Have you ever wondered what mechanism in Android used to listen for all the changes, the events of the system? System’s means of the operating…
Android Lesson 14: Alert Dialog
Example 1: You can see in this tutorial: Android Lesson 12 part 2: ListFragment Example 2: create android dialog with a custom layout File res/layout/dialog_content.xml…
Android Lesson 13: Snackbar
Import: Example: More information about Snackbar: https://github.com/material-components/material-components-android/blob/master/docs/components/Snackbar.md
Android Lesson 12 part 2: ListFragment
Example 2: ListFragment File res/layout/list_fragment.xml File ListFragment.java File res/layout/acivity_main.xml File MainActivity.java
Android Lesson 12: Fragment
Example 1: Fragment and FrameLayout Step 1: create a new android project Step 2: File res/layout/activity_main.xml Step 3: File res/layout/landscape_fragment.xml Step 4: File res/layout/portrait_fragment.xml Step…
Android: How To Change Android Button Color
android:background Don’t use android:background, as it will replace the entire Drawable thus removing click effect (e.g. material ripple effect) and remove changing of color state…