Image Gallery Widget Example in Android

MainActivity.java

package com.example.gallerywidget;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.Gallery;
import android.widget.TextView;

public class MainActivity extends Activity {

TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv=(TextView) findViewById(R.id.textView1);
Gallery g=(Gallery) findViewById(R.id.gallery1);
g.setAdapter(new ImageAdapter(this));
g.setOnItemSelectedListener(new OnItemSelectedListener() {

@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
tv.setText("Selected Image id : "+arg2);
}

@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
tv.setText("www.BipinRupadiya.com");
}
});


}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}

}

ImageAdapter.java

package com.example.gallerywidget;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.GridView;
import android.widget.ImageView;

public class ImageAdapter extends BaseAdapter {

Context myContext;
Integer myImgArray[] = { R.drawable.img_1, R.drawable.img_2,
R.drawable.img_3, R.drawable.img_4, R.drawable.img_5,
R.drawable.img_6, R.drawable.img_7, R.drawable.img_8,
R.drawable.img_9, R.drawable.img_10, };

ImageAdapter(Context c) {
myContext = c;
}

@Override
public int getCount() {
return myImgArray.length;
}

@Override
public Object getItem(int arg0) {
return myImgArray[arg0];
}

@Override
public long getItemId(int arg0) {
return 0;
}

@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
ImageView myImageView = new ImageView(myContext);
myImageView.setImageResource(myImgArray[arg0]);
myImageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
myImageView.setLayoutParams(new Gallery.LayoutParams(170, 170));
return myImageView;
}

}

activity_main.xml

<RelativeLayout 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"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="26dp"
        android:text="www.BipinRupadiya.com" />

    <Gallery
        android:id="@+id/gallery1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="78dp" />

</RelativeLayout>