How to compile FFmpeg on CentOS 8
Step 1: yum install -y autoconf automake bzip2 cmake freetype-devel gcc gcc-c++ git libtool make mercurial pkgconfig zlib-devel Result: Step 2: Step 3: Result: Step…
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Linux: How to use rescue system to fix server problem
Step 1: boot into rescue mode Some server provider provide feature Reload Operating System Step 2: find mount root filesystem Step 3: mount root filesystem…
How to fix error: service MongoDB failed to start，verify that you have sufficient privileges to start system services
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
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…
Android: how to fix error: android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork
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…