Have your BaseAdapter hold onto the Activity, supplied via a constructor parameter. Then, call findViewById() on it.
On Mon, Jun 27, 2011 at 12:16 AM, Kivak <[email protected]> wrote: > Hello everyone! > > I am a pretty recent beginner to the android SDK and Java in general. > I've had experience in OOP programming, but most of my programming has > been in PHP and SQL - quite a bit different from Java as far as I can > tell. > > My question pertains to the use of the Gallery wigit. I was able to > look up a couple tutorials on how to use the wigit and add photos into > it using an ImageAdapter (class extending the BaseAdapter) - even make > them full screen. But what I want to do is to add some text to the > screen as well which will change based on the photo that is there. For > example: the name of the photo itself. > > My line of thinking was that I could use the "getView()" function in > the ImageAdapter class because it is called every time you scroll to > another image. But I cannot use "findViewById()" in the ImageAdapter > class (I assume because it extends BaseAdapter and not Activity). > > Can anyone at least point me in the right direction of how to solve > this? > > Thanks so much for your time and help!! > -Kivak > > > > Code is as follows: > > Wallpapers Class (the class called as intent) > -------------------------------------------------------------------- > > import android.app.Activity; > import android.os.Bundle; > import android.widget.Gallery; > > public class Wallpapers extends Activity { > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > > setContentView(R.layout.wallpapers); > > ((Gallery) findViewById(R.id.gallery)).setAdapter(new > WallpaperImageAdapter(this)); > } > } > > > > ImageAdapter Class > --------------------------------------------------------------------- > > import android.content.Context; > import android.view.View; > import android.view.ViewGroup; > import android.widget.BaseAdapter; > import android.widget.Gallery; > import android.widget.ImageView; > import android.widget.Gallery.LayoutParams; > > public class WallpaperImageAdapter extends BaseAdapter { > > /** The parent context */ > private Context myContext; > > /** > * All images to be displayed. Put some images to project-folder: > * '/res/drawable/uvw.xyz' . > */ > private int[] myImageIds = { R.drawable.wallpaper_1, > R.drawable.wallpaper_2, R.drawable.wallpaper_3, > R.drawable.wallpaper_4 }; > > /** Simple Constructor saving the 'parent' context. */ > public WallpaperImageAdapter(Context c) { > this.myContext = c; > } > > /** Returns the amount of images we have defined. */ > public int getCount() { > return this.myImageIds.length; > } > > /* Use the array-Positions as unique IDs */ > public Object getItem(int position) { > return position; > } > > public long getItemId(int position) { > return position; > } > > /** > * Returns a new ImageView to be displayed, depending on the position > * passed. > */ > public View getView(int position, View convertView, ViewGroup parent) > { > ImageView i = new ImageView(this.myContext); > > i.setImageResource(this.myImageIds[position]); > /* Image should be scaled as width/height are set. */ > i.setScaleType(ImageView.ScaleType.FIT_CENTER); > /* Set the Width/Height of the ImageView. */ > i.setLayoutParams(new > Gallery.LayoutParams(LayoutParams.MATCH_PARENT, > LayoutParams.MATCH_PARENT)); > return i; > } > > > } > > > > > Wallpaper.xml > --------------------------------------------------------------- > > <?xml version="1.0" encoding="utf-8"?> > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/ > android" > android:orientation="vertical" > android:layout_width="fill_parent" > android:layout_height="fill_parent" > > <Gallery android:id="@+id/gallery" > android:layout_width="fill_parent" > android:layout_height="fill_parent" > android:gravity="fill_horizontal" /> > </LinearLayout> > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy Android Training in NYC: http://marakana.com/training/android/ -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
