The Tech Galaxy
This tutorial will help you to learn to set a custom font or your favourite ttf font for a TextView in android java Create a TextView in your activity_main.xml layout <TextView android:textColor=”@color/colorPrimaryDark” android:id=”@+id/text3″ android:layout_width=”350sp” android:gravity=”center” android:layout_height=”wrap_content” android:textSize=”50sp” android:text=”Hello this is a…
This is a common error when you use context as a variable but you haven’t initialized and declared it for example, take a look at this screenshot. here is an AlertDialog showing the error in context (red color). How…
Changing package name of an android app is explained here, it is not hard, however, you may face error in the google-services.json file, but it is an easy fix and is explained in this site How to Change Android App…
To close,stop or finish an activity, use this java code // close this activity finish(); For example: Intent i = new Intent(ThisActivity.this, NextActivity.class); startActivity(i); // close this activity finish(); This code here opens a new activity (NextActivity.class), then closes the…
Clear cache in Android webview This simple java code can be used to clear cache on android WebView Mywebview.clearCache(true); true or false here is boolean. Usually it is called on a click event
changing version name and version code is important when you updating your android app, Example version: 1.0.1, 1.2.2 etc. each time when you updating an android app on playstore, a new version name and version code is necessary, New version…
Simple DIY Fm Transmitter Electronic Circuit This is a simplest FM transmitter circuit i built so far, for educational purposes. many “simple transmitters” (Most transmitters on internet claim to be simple but many of them don’t work) on internet will…
Regulated Dual DC 12V DIY Electronic Circuit Diagram This circuit can be used to create your own Dual power supply What Exactly is a Dual Power Supply? Some circuits require a dual power supply (eg-Op-amp ICs,pre-amps,power amps) to double the…
What is a mobile phone modem? Your phone’s cellular connection,internet connection, speed etc established through modem. In some mobile phones, you can get good signal and internet connectivity etc with different modems if the modem it already has is getting…