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What is the best way to auto scale TextView Text to Fit within Bounds on Android?
This example demonstrates how to do I auto scale TextView text to fit within the bounds on android.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Add the following dependencies to build.gradle: Module: App)
implementation 'com.android.support:design:28.0.0' implementation 'me.grantland:autofittextview:0.2.1'
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" xmlns:autofit="http://schemas.android.com/apk/res-auto" android:orientation="vertical" tools:context=".MainActivity"> <me.grantland.widget.AutofitTextView android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:singleLine="true" android:text="Android AutoFit TextView Example" android:textSize="42sp" autofit:minTextSize="5sp" /> <me.grantland.widget.AutofitTextView android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:layout_marginTop="10dp" android:layout_marginBottom="10dp" android:singleLine="true" android:text="A TextView that automatically reSizes text to fit perfectly within the bounds" android:textSize="42sp" autofit:minTextSize="5sp" /> <me.grantland.widget.AutofitTextView android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:singleLine="true" android:text="Android AutoFit TextView" android:textSize="42sp" autofit:minTextSize="5sp" /> <me.grantland.widget.AutofitTextView android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:layout_marginTop="10dp" android:layout_marginBottom="10dp" android:singleLine="true" android:text="Automatically Resized text" android:textSize="42sp" autofit:minTextSize="5sp" /> <me.grantland.widget.AutofitTextView android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:singleLine="true" android:text="Automatically Resize Text to Fit Perfectly within its Bounds" android:textSize="42sp" autofit:minTextSize="5sp" /> </LinearLayout>
Step 3 − Add the following code to src/MainActivity.java
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}Step 4 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.sample"> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from the android studio, open one of your project's activity files and click Run 
icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −
Click here to download the project code.
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