December | 2020 | Free Online Tutorials

How to fix error: service MongoDB failed to start，verify that you have sufficient privileges to start system services

phptuts December 31, 2020

Error message: Service ‘MongoDB Server (MongoDB)’ (MongoDB) failed to start. Verify that you have sufficient privileges to start system services Solution: Install microsoft visual C++…

Android Lesson 15: Broadcast Receiver

phptuts December 14, 2020

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

phptuts December 14, 2020

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

phptuts December 13, 2020

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

phptuts December 13, 2020

Example 2: ListFragment File res/layout/list_fragment.xml File ListFragment.java File res/layout/acivity_main.xml File MainActivity.java

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

phptuts December 12, 2020

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…

Android: how to fix error: android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork

phptuts December 9, 2020

Example error: This exception is thrown when application attempts to perform a networking operation in the main thread. Use below code in your onViewCreated to…