Showing posts with label android. Show all posts
Showing posts with label android. Show all posts
Monday, April 6, 2026

Debian 13: trouble shooting Android Debug Bridge (adb) on kernel 6.12.74

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After i upgrade the kernel from 6.12.67 to kernel 6.12.74, the kernel can not detect my phone to test android application. Do this using com...
Thursday, February 26, 2026

Android java: using sqliteopenhelper pattern code

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Using additional Room may increase size of application, means more lines required to executed. implement SQLiteOpenHelper rather then using ...
Monday, February 23, 2026

Android java: boot on boot receiver

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This is a table on all android boot where on receive event trigger your application: State Security Status getMySharedPre...

Android java: Work Manager and Alarm Manager

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Java Android Scheduling: Work Manager and Alarm Manager WorkManager:  Constraints: You can specify conditions like "only run when charg...
Monday, February 16, 2026

Android java: local webview from local html e.g help page

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Create directory and html files Switch to Project View (not Android view) Go to: [your_project] app/src/main/ Right click on main → New → Di...
Friday, February 13, 2026

java: comparison between database api in java android and jdbc in java standard edition

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Here is comparison between database api in java android and jdbc in java standard edition   Operation Java Android Java SE (JDBC) INSERT Ret...

Android java: notification pattern code

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add permission in project  AndroidManifest.xml <manifest ...>     <uses-permission android:name="android.permission.POST_NO...
Thursday, February 12, 2026

Android java: fragment pattern code

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Fragment use just portrait for phone and w600 for tablet (bigger screen)    for portrait (phone)  <?xml version="1.0" encoding...
Thursday, January 29, 2026

Android java: write and delete file in shared folder e.g Download pattern code

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Target device Android 7 (API 24) to Android 16 (API 36) AndroidManifest.xml permission       <uses-permission         android:name=...

Android java: OnBackPressedDispatcher pattern code

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AndroidManifest.xml      <application ...         android:enableOnBackInvokedCallback="true"  Main Activity  On main acti...
Friday, January 23, 2026

Android java: gradle corrupted, how to fix it

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This is error message when gradle corrupted due to accidentally deleted or fail updated. "The contents of the immutable workspace '...
Saturday, January 17, 2026

adb command references (android debug bridge)

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to add path for platform-tool edit .bashrc (for Debian), append at the end. log out and sign in again to get affect or run $ source ~/.bashr...

Android java: dealing with Trusted credentials on Android 7.1.1 below for letencrypt

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Dealing with connection to https on old android may depend on Trusted credentials on the the device.  Letsencrypt root certificate does not ...
Tuesday, January 13, 2026

Android java: input events processing (collection)

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There 2 ways to handle input events from user input Immediate: using listener At process: at the end to process data, usually user fire ...