عدم نمایش کامل تصاویر در gridview

[parniaznet]

سلام
من 12 تا تصویر برای نمایش در gridview گذاشتم ، اما فقط 3 تاشون رو نمایش میده

کد ها:

package com.srp.eydkojaberim;

import android.support.v7.app.ActionBarActivity;
import android.content.Context;
import android.content.res.Resources;
import android.os.Bundle;
import android.util.TypedValue;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class Activity2a extends ActionBarActivity {

public Integer[] myImages = {
R.drawable.a2a,
R.drawable.a2b,
R.drawable.a2c,
R.drawable.a2d,
R.drawable.a2e,
R.drawable.a2f,
R.drawable.a2g,
R.drawable.a2h,
R.drawable.a2i,
R.drawable.a2j,
R.drawable.a2k,
R.drawable.a2l,

};


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_activity2a);

GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(new ImageAdapter(this));

gridview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
String position_string = "you pressed the item number " + String.valueOf(position+1) + " in GridView";
Toast.makeText(getApplicationContext(), position_string, Toast.LENGTH_SHORT).show();
}
});
}


public static int convertDpToPixels(float dp, Context context){
Resources resources = context.getResources();
return (int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP,
dp,
resources.getDisplayMetrics()
);
}


public class ImageAdapter extends BaseAdapter{
private Context mContext;
public int getCount() {
return myImages.length;
}
public Object getItem(int position) {
return myImages[position];
}
public long getItemId(int position) {
return 0;
}
public ImageAdapter(Context c) {
mContext = c;
}

public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;
if (convertView == null){
imageView = new ImageView(mContext);
float w = 100;
float h = 100;
int width_pixel = convertDpToPixels(w,Activity2a .this);
int height_pixel = convertDpToPixels(h,Activity2a.this);
imageView.setLayoutParams(new GridView.LayoutParams(width_pixel, height_pixel));
imageView.setScaleType(ImageView.ScaleType.CENTER_ CROP);
imageView.setPadding(8, 8, 8, 8);
imageView.setMaxHeight(60);
}else{
imageView = (ImageView) convertView;
}
imageView.setBackgroundResource(myImages[position]);
return imageView;
}


}


@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity2a, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}




کد های 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"
android:background="@drawable/m3"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.srp.eydkojaberim.Activity2a" >

<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent" >

<RelativeLayout
android:id="@+id/form_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >

<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:src="@drawable/a2a" />

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/imageView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="16dp"
android:text="آبشارهای تنگ براق"
android:textAppearance="?android:attr/textAppearanceMedium" />

<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_marginLeft="16dp"
android:layout_marginTop="16dp"
android:layout_toRightOf="@+id/textView3"
android:text="مکان : "
android:textAppearance="?android:attr/textAppearanceLarge" />

<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/textView2"
android:layout_alignBottom="@+id/textView2"
android:layout_alignLeft="@+id/imageView1"
android:layout_marginLeft="19dp"
android:text="اقلید - فارس" />

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/textView4"
android:layout_alignBottom="@+id/textView4"
android:layout_alignLeft="@+id/imageView1"
android:layout_alignRight="@+id/imageView1"
android:minHeight="20dip"
android:text="نقشه" />

<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView2"
android:layout_centerHorizontal="true"
android:layout_marginTop="18dp"
android:text="@string/a2a" />


<GridView
android:id="@+id/gridview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/textView4"
android:numColumns="3" >
</GridView>



</RelativeLayout>
</ScrollView>

</RelativeLayout>