Hi all,
I have tried adding a grid view to a custom dialog. When displaying
the dialog it crashes.
But when tried displaying the grid view in normal activity it was
working.( without dialog )
I took the examples from developer android website.Took grid view and
tried to integrate in custom dialog.
I used two xml main.xml & category.xml.
Here is my code:
package com.android.test;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class test extends Activity {
/** Called when the activity is first created. */
public final static int CATEGORY_ID=0;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button button = (Button)findViewById(R.id.categories);
button.setOnClickListener(new Button.OnClickListener(){
public void onClick(View v) {
showDialog(CATEGORY_ID);
}
});
}
protected Dialog onCreateDialog(int id) {
Dialog dialog;
switch(id) {
case CATEGORY_ID:
AlertDialog.Builder builder;
AlertDialog alertDialog;
Context mContext = this;
LayoutInflater inflater = (LayoutInflater)
mContext.getSystemService(LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.categorydialog,
(ViewGroup)
findViewById(R.id.layout_root));
TextView text = (TextView) layout.findViewById(R.id.text);
text.setText("Hello, this is a custom dialog!");
ImageView image = (ImageView)
layout.findViewById(R.id.image);
image.setImageResource(R.drawable.find);
GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(new ImageAdapter(this));
gridview.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
Toast.makeText(test.this, "" + position,
Toast.LENGTH_SHORT).show();
}
});
builder = new AlertDialog.Builder(mContext);
builder.setView(layout);
dialog = builder.create();
break;
default:
dialog = null;
}
return dialog;
}
public class ImageAdapter extends BaseAdapter {
private Context mContext;
public ImageAdapter(Context c) {
mContext = c;
}
public int getCount() {
return mThumbIds.length;
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
// create a new ImageView for each item referenced by the
Adapter
public View getView(int position, View convertView, ViewGroup
parent) {
ImageView imageView;
if (convertView == null) { // if it's not recycled,
initialize some attributes
imageView = new ImageView(mContext);
imageView.setLayoutParams(new
GridView.LayoutParams(85, 85));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8);
} else {
imageView = (ImageView) convertView;
}
imageView.setImageResource(mThumbIds[position]);
return imageView;
}
// references to our images
private Integer[] mThumbIds = {
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find,
R.drawable.info, R.drawable.find
};
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="3dip"
android:orientation="vertical">
<Button android:id="@+id/categories"
android:layout_width="150dip"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="Choose categories"
/>
</LinearLayout>
categorydialog.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:id="@+id/layout_root"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
>
<ImageView android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginRight="10dp"
/>
<TextView android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:textColor="#FFF"
/>
<GridView xmlns:android="http://schemas.android.com/apk/res/android";
android:id="@+id/gridview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:columnWidth="90dp"
android:numColumns="auto_fit"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:stretchMode="columnWidth"
android:gravity="center"
/>
</LinearLayout>
Could anyone please help me out here.
Thanks,
mani
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