GridView with Auto Resized Images on Android

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <GridView
        android:id="@+id/gridview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:verticalSpacing="0dp"
        android:horizontalSpacing="0dp"
        android:stretchMode="columnWidth"
        android:numColumns="2" />
</FrameLayout>

package com.rogcg.gridviewexample;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.ImageView;

public class SquareImageView extends ImageView
{
    public SquareImageView(Context context)
    {
        super(context);
    }

    public SquareImageView(Context context, AttributeSet attrs)
    {
        super(context, attrs);
    }

    public SquareImageView(Context context, AttributeSet attrs, int defStyle)
    {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
    {
       Context context=getContext();
     
     WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
     Display display = wm.getDefaultDisplay();
     
     Point size = new Point();
     display.getSize(size);
     int width = size.x;
     int height = size.y-80;

        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        //setMeasuredDimension(getMeasuredWidth(), getMeasuredWidth()); //Snap to width
        if(Config.orientation==1)
        setMeasuredDimension(getMeasuredWidth(), height/3); //Snap to width
        else
         setMeasuredDimension(getMeasuredWidth(), height/2); //Snap to width   }
}



And now we make a layout for a grid item using this SquareImageView class and set the scaleType to centerCrop. Let's call this filegridview_item.xml.

<?xml version="1.0" encoding="utf-8"?>

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <com.rogcg.gridviewexample.SquareImageView
        android:id="@+id/picture"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="centerCrop"
        />
    <TextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="10dp"
        android:paddingRight="10dp"
        android:paddingTop="15dp"
        android:paddingBottom="15dp"
        android:layout_gravity="bottom"
        android:textColor="@android:color/white"
        android:background="#55000000"
        />
</FrameLayout>

package com.mafiree;

import java.util.ArrayList;
import java.util.List;

import com.mafiree.source.Config;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.res.Configuration;
import android.graphics.Point;
import android.os.Bundle;
import android.view.Display;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.BaseAdapter;
import android.widget.FrameLayout;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

public class DashBoard extends Activity{

 @Override
 protected void onCreate(Bundle savedInstanceState) {  
  super.onCreate(savedInstanceState);
  setContentView(R.layout.dash_board_demo);
  Config.orientation=getScreenOrientation();
   GridView gridView = (GridView)findViewById(R.id.gridview);
         gridView.setAdapter(new MyAdapter(this));
  //String[] name={"Current Health","Outstanding Issues","Architecture","Tickets","Backup","Activity"};
 }
 
  private class MyAdapter extends BaseAdapter
     {
         private List<Item> items = new ArrayList<Item>();
         private LayoutInflater inflater;

         public MyAdapter(Context context)
         {
             inflater = LayoutInflater.from(context);

             items.add(new Item("Current Health", R.drawable.test));
             items.add(new Item("Outstanding Issues", R.drawable.test));
             items.add(new Item("Architecture", R.drawable.test));
             items.add(new Item("Tickets", R.drawable.test));
             items.add(new Item("Backup", R.drawable.test));
             items.add(new Item("Activity", R.drawable.test));
         }

         @Override
         public int getCount() {
             return items.size();
         }

         @Override
         public Object getItem(int i)
         {
             return items.get(i);
         }

         @Override
         public long getItemId(int i)
         {
             return items.get(i).drawableId;
         }

         @SuppressLint("NewApi")
   @Override
         public View getView(int i, View view, ViewGroup viewGroup)
         {
             View v = view;
             ImageView picture;
             TextView name;

             if(v == null)
             {
                v = inflater.inflate(R.layout.gridview_item, viewGroup, false);
                v.setTag(R.id.picture, v.findViewById(R.id.picture));
                v.setTag(R.id.text, v.findViewById(R.id.text));
             }

             picture = (ImageView)v.getTag(R.id.picture);
             name = (TextView)v.getTag(R.id.text);

             Item item = (Item)getItem(i);

             Display display = getWindowManager().getDefaultDisplay();
             Point size = new Point();
             display.getSize(size);
             int width = size.x;
             int height = size.y;
             
             int orentation=getScreenOrientation();
             System.out.println("orientation: "+getScreenOrientation());
             // picture.getLayoutParams().height = 20;
             //  picture.requestLayout();
            DashBoard.this.getResources().getConfiguration();
             System.out.println();
             android.view.ViewGroup.LayoutParams layoutParams = picture.getLayoutParams();
             if(orentation==2){
             layoutParams.width = width/3;
             layoutParams.height = 50;
             picture.setLayoutParams(layoutParams);
             System.out.println("setting orientation");
             }else{
              System.out.println("nothing");
             }
             
             
             
             System.out.println("width :"+width);
             System.out.println("height :"+height);
             picture.setImageResource(item.drawableId);
             name.setText(item.name);

             
             picture.setId(i);
             picture.setOnClickListener(new OnClickListener() {
     
     @Override
     public void onClick(View v) {
      Toast.makeText(getApplicationContext(), "click-"+v.getId(), Toast.LENGTH_SHORT).show();
     }
    });
             
             return v;
         }

         private class Item
         {
             final String name;
             final int drawableId;

             Item(String name, int drawableId)
             {
                 this.name = name;
                 this.drawableId = drawableId;
             }
         }

  
     }
  
  
  public int getScreenOrientation()
  {
      Display getOrient = getWindowManager().getDefaultDisplay();
      int orientation = Configuration.ORIENTATION_UNDEFINED;
      if(getOrient.getWidth()==getOrient.getHeight()){
          orientation = Configuration.ORIENTATION_SQUARE;
      } else{ 
          if(getOrient.getWidth() < getOrient.getHeight()){
              orientation = Configuration.ORIENTATION_PORTRAIT;
          }else { 
               orientation = Configuration.ORIENTATION_LANDSCAPE;
          }
      }
      return orientation;
  }
 }