How to make an ImageView with rounded corners on Android App ?




     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:app="http://schemas.android.com/apk/res-auto"
   xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:orientation="vertical"
   tools:context=".MainActivity">
   <TextView
      android:id="@+id/textView"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="" />
   <ImageView
      android:id="@+id/imageView"
      android:layout_width="fill_parent"
      android:layout_margin="10dp"
      android:layout_height="fill_parent" />
   </LinearLayout>
     Add the following code to src/MainActivity.java
package com.example.sample;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ImageView;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      TextView textView=(TextView) findViewById(R.id.textView);
      textView.setTextColor(Color.RED);
      textView.setTextSize(20);
      ImageView mimageView=(ImageView) findViewById(R.id.imageView);
      Bitmap mbitmap=((BitmapDrawable) getResources().getDrawable(R.drawable.cat)).getBitmap();
      Bitmap imageRounded=Bitmap.createBitmap(mbitmap.getWidth(), mbitmap.getHeight(), mbitmap.getConfig());
      Canvas canvas=new Canvas(imageRounded);
      Paint mpaint=new Paint();
      mpaint.setAntiAlias(true);
      mpaint.setShader(new BitmapShader(mbitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP));
      canvas.drawRoundRect((new RectF(0, 0, mbitmap.getWidth(), mbitmap.getHeight())), 100, 100, mpaint); // Round Image Corner 100 100 100 100
      mimageView.setImageBitmap(imageRounded);
   }
}
     Add the following code to app/manifests/AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.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>
OutPut

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