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POAndroid: BaseAdapter and getLayoutInflater on separate class file
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copied!<p>Right now to populate my GridViews I'm using a extended BaseAdapter class on each of my Android Activities (which are most of them).</p> <p>In order to make it easier to read and maintain, I`m trying to put all the BaseAdapter code in a separate class file.</p> <p>To populate the GridView, I'm using LayoutInflater, and here is where stuff gets tricky...</p> <p>Since the getLayoutInflater() comes from <code>android.Activity</code>, it just won't do the trick. I tried making my Adapter.java(the class to populate the GridViews) a extended Activity class, and then inside create the BaseAdapter class (the way I do it right now), but I haven't been able to make it work properly.</p> <p>Here's how Adapter.java looks:</p> <pre><code>//Adapter.java package com.cimp.matitec; import greendroid.app.GDActivity; import android.content.Context; 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 Adapter extends GDActivity{ public class ImageAdapter extends BaseAdapter { Context MyContext; int count; String[] nombre; public ImageAdapter(Context _MyContext, int n, String[] nombre) { MyContext = _MyContext; count = n; this.nombre = nombre; } public int getCount() { /* Set the number of element we want on the grid */ return count; } @Override public View getView(int position, View convertView, ViewGroup parent) { View MyView = convertView; if ( convertView == null ) { /*we define the view that will display on the grid*/ //Inflate the layout LayoutInflater li = getLayoutInflater(); MyView = li.inflate(R.layout.grid_item, null); // Add The Text!!! TextView tv = (TextView)MyView.findViewById(R.id.grid_item_text); tv.setText(nombre[position]+""); // Add The Image!!! ImageView iv = (ImageView)MyView.findViewById(R.id.grid_item_image); iv.setImageResource(R.drawable.ic_launcher); } return MyView; } @Override public Object getItem(int arg0) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int arg0) { // TODO Auto-generated method stub return 0; } } } </code></pre> <p>To call it from the outside, I do the following:</p> <pre><code>//MainClass.java Adapter MyGridAdapter = new Adapter(); MyGrid = (GridView)findViewById(R.id.grid); MyGrid.setAdapter(MyGridAdapter.new ImageAdapter(this, 6, nombreTema)); </code></pre> <p>The app runs, but when trying to populate, I got a NullPointerException getLayoutInflater().</p> <p>Someone knows what I'm missing, or how to make it work properly?</p>

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