Resimleri GridView ile göstermek

 

Resimlerin kutular şekilden(thumbnails) göstermek için Android GridView nesnesi kullanılabilir. Gridview resimleri ekrana istediğiniz boyutta etikleri ile birlikte göstermeye yardımcı olur.

Örneğimize bakalım

package com.gridviewornek;

import java.util.ArrayList;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.GridView;

import android.widget.Toast;

import android.widget.AdapterView.OnItemClickListener;

public class GridViewExampleActivity extends Activity {

/** Called when the activity is first created. */

private GridviewAdapter mAdapter;

private ArrayList<String> listCountry;

private ArrayList<Integer> listFlag;

private GridView gridView;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

prepareList();

// prepared arraylist and passed it to the Adapter class

mAdapter = new GridviewAdapter(this,listCountry, listFlag);

// Set custom adapter to gridview

gridView = (GridView) findViewById(R.id.gridView1);

gridView.setAdapter(mAdapter);

// Implement On Item click listener

gridView.setOnItemClickListener(new OnItemClickListener()

{

@Override

public void onItemClick(AdapterView<?> arg0, View arg1, intposition,

long arg3) {

Toast.makeText(GridViewExampleActivity.this, mAdapter.getItem(position), Toast.LENGTH_SHORT).show();

}

});

}

public void prepareList()

{

listCountry = new ArrayList<String>();

listCountry.add("india");

listCountry.add("Brazil");

listCountry.add("Canada");

listCountry.add("China");

listCountry.add("France");

listCountry.add("Germany");

listCountry.add("Iran");

listCountry.add("Italy");

listCountry.add("Japan");

listCountry.add("Korea");

listCountry.add("Mexico");

listCountry.add("Netherlands");

listCountry.add("Portugal");

listCountry.add("Russia");

listCountry.add("Saudi Arabia");

listCountry.add("Spain");

listCountry.add("Turkey");

listCountry.add("United Kingdom");

listCountry.add("United States");

listFlag = new ArrayList<Integer>();

listFlag.add(R.drawable.india);

listFlag.add(R.drawable.brazil);

listFlag.add(R.drawable.canada);

listFlag.add(R.drawable.china);

listFlag.add(R.drawable.france);

listFlag.add(R.drawable.germany);

listFlag.add(R.drawable.iran);

listFlag.add(R.drawable.italy);

listFlag.add(R.drawable.japan);

listFlag.add(R.drawable.korea);

listFlag.add(R.drawable.mexico);

listFlag.add(R.drawable.netherlands);

listFlag.add(R.drawable.portugal);

listFlag.add(R.drawable.russia);

listFlag.add(R.drawable.saudi_arabia);

listFlag.add(R.drawable.spain);

listFlag.add(R.drawable.turkey);

listFlag.add(R.drawable.united_kingdom);

listFlag.add(R.drawable.united_states);

}

}

GridviewAdapter.java

GridviewAdapter.java package com.technotalkative.gridviewexample;import java.util.ArrayList; import android.app.Activity; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; public class GridviewAdapter extends BaseAdapter { private ArrayList<String> listCountry; private ArrayList<Integer> listFlag; private Activity activity; public GridviewAdapter(Activity activity,ArrayList<String> listCountry, ArrayList<Integer> listFlag) { super(); this.listCountry = listCountry; this.listFlag = listFlag; this.activity = activity; } @Override public int getCount() { // TODO Auto-generated method stub return listCountry.size(); } @Override public String getItem(int position) { // TODO Auto-generated method stub return listCountry.get(position); } @Override public long getItemId(int position) { // TODO Auto-generated method stub return 0; } public static class ViewHolder { public ImageView imgViewFlag; public TextView txtViewTitle; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub ViewHolder view; LayoutInflater inflator = activity.getLayoutInflater(); if(convertView==null) { view = new ViewHolder(); convertView = inflator.inflate(R.layout.gridview_row, null); view.txtViewTitle = (TextView) convertView.findViewById(R.id.textView1); view.imgViewFlag = (ImageView) convertView.findViewById(R.id.imageView1); convertView.setTag(view); } else { view = (ViewHolder) convertView.getTag(); } view.txtViewTitle.setText(listCountry.get(position)); view.imgViewFlag.setImageResource(listFlag.get(position)); return convertView; } } main.xml ? <?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent">   <GridView android:layout_height="wrap_content" android:id="@+id/gridView1" android:layout_width="match_parent" android:numColumns="auto_fit" android:horizontalSpacing="10dp" android:verticalSpacing="10dp"> </GridView> </LinearLayout> gridview_row.xml ?xml version="1.0" encoding="utf-8"?><RelativeLayout android:id="@+id/relativeLayout1" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" android:background="@drawable/border" android:padding="5dp">   <ImageView android:layout_height="64dp" android:id="@+id/imageView1" android:layout_width="64dp" android:src="@drawable/icon" android:layout_alignParentTop="true" android:layout_centerHorizontal="true"> </ImageView>   <TextView android:text="TextView" android:layout_height="wrap_content" android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_below="@+id/imageView1" android:layout_marginTop="2dp" android:layout_centerHorizontal="true" android:textSize="18sp" android:ellipsize="marquee"></TextView>     </RelativeLayout>

Örneği buradan indirebilirsiniz.
https://github.com/PareshMayani/Android-GridView-Example