How to pass bitmap between activities

How to pass bitmap between activities

A bitmap created from R.drawable.icon will be passed from one activity (AndroidPassingBitmap) to another activity (AndroidReceiveBitmap).



Modify the activity AndroidPassingBitmap.java, simple create a bitmap and pass to the second activity.
/AndroidPassingBitmap/src/com/AndroidPassingBitmap/AndroidPassingBitmap.java

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

package com.AndroidPassingBitmap;   import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle;   public class AndroidPassingBitmap extends Activity {     /** Called when the activity is first created. */     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);           Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.icon);                   Intent intent = new Intent();         intent.setClass(AndroidPassingBitmap.this, AndroidReceiveBitmap.class);         intent.putExtra("Bitmap", bitmap);         startActivity(intent);       } }

Create a new activity to retrieve and display the bitmap.
/workspace/AndroidPassingBitmap/src/com/AndroidPassingBitmap/AndroidReceiveBitmap.java

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

package com.AndroidPassingBitmap;   import android.app.Activity; import android.graphics.Bitmap; import android.os.Bundle; import android.widget.ImageView;   public class AndroidReceiveBitmap extends Activity {    @Override  protected void onCreate(Bundle savedInstanceState) {   // TODO Auto-generated method stub   super.onCreate(savedInstanceState);       Bitmap bitmap = (Bitmap)this.getIntent().getParcelableExtra("Bitmap");       setContentView(R.layout.newimage);   ImageView viewBitmap = (ImageView)findViewById(R.id.bitmapview);       viewBitmap.setImageBitmap(bitmap);      }   }

Create the layout of the second activity.
/workspace/AndroidPassingBitmap/res/layout/newimage.xml

?

1 2 3 4 5 6 7 8 9 10 11 12 13

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     > <ImageView      android:id="@+id/bitmapview"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     /> </LinearLayout>

Update AndroidManifest.xml to include the second activity in the package.
/workspace/AndroidPassingBitmap/AndroidManifest.xml

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"       package="com.AndroidPassingBitmap"       android:versionCode="1"       android:versionName="1.0">     <application android:icon="@drawable/icon" android:label="@string/app_name">         <activity android:name=".AndroidPassingBitmap"                   android:label="@string/app_name">             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                 <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>         </activity>         <activity android:name=".AndroidReceiveBitmap"                   android:label="AndroidReceiveBitmap">         </activity>     </application>     <uses-sdk android:minSdkVersion="4" />   </manifest>