Draw Image loaded from URL on canvas
Description
The following code shows how to Draw Image loaded from URL on canvas.
Example
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.manning.aip.motivator"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="4" />
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".Main"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.INTERNET" />
</manifest>
Main layout xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff"
android:orientation="vertical">
<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp" />
</LinearLayout>
Main Activity Java code
package com.java2s.myapplication3.app;
//from w ww .ja va2 s. c o m
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Align;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.Window;
import android.widget.ImageView;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
try {
URL url = new URL("http://www.java2s.com/style/download.png");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setConnectTimeout(3000);
conn.setReadTimeout(5000);
Bitmap kitten = BitmapFactory.decodeStream(conn.getInputStream());
conn.disconnect();
Bitmap frame = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
Bitmap output = Bitmap.createBitmap(frame.getWidth(), frame.getHeight(), Bitmap.Config.ARGB_8888);
output.eraseColor(Color.BLACK);
Canvas canvas = new Canvas(output);
canvas.drawBitmap(kitten, 125, 125, new Paint()); // bitmap, left, top, paint
canvas.drawBitmap(frame, 0, 0, new Paint());
Paint textPaint = new Paint();
textPaint.setColor(Color.WHITE);
textPaint.setTypeface(Typeface.create(Typeface.SERIF, Typeface.BOLD));
textPaint.setTextAlign(Align.CENTER);
textPaint.setAntiAlias(true);
textPaint.setTextSize(36);
canvas.drawText("Android", output.getWidth() / 2, (output.getHeight() / 2) + 140, textPaint);
ImageView imageView = (ImageView) this.findViewById(R.id.imageView);
imageView.setImageBitmap(output);
} catch (IOException e) {
e.printStackTrace();
}
}
}