下面是我无法获取图片ID资源的类。我试图从Web服务获取所有数据。在这里，我已经发布了从中获取图像的所有类。我将所有图像显示在gridView中。我没有遇到问题，但是当我点击gridview的图像时，它向我展示了我调用的xml文件。我想我在FullImageAcitivity文件中调用id的地方做错了。
DefaultGridView.java
public class DefaultGridView extends Activity {
//int position;
public void onBackPressed() {
// TODO Auto-generated method stub
super.onBackPressed();
finish();
}
GridView gridView;
Context context=this;
DisplayImageOptions options;
protected ImageLoader imageLoader = ImageLoader.getInstance();
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.latestphotos);
gridView=(GridView)findViewById(R.id.grid_view);
options = new DisplayImageOptions.Builder()
.showStubImage(R.drawable.stub_image)
.showImageForEmptyUri(R.drawable.image_for_empty_url)
.cacheInMemory()
.cacheOnDisc()
.bitmapConfig(Bitmap.Config.RGB_565)
.build();
gridView.setAdapter(new ImageAdapter());
}
public class ImageAdapter extends BaseAdapter {
LayoutInflater inflater = LayoutInflater.from(context);
public ImageAdapter() {
// TODO Auto-generated constructor stub
imageLoader.init(ImageLoaderConfiguration.createDefault(DefaultGridView.this));
}
@Override
public int getCount() {
return Global.getPhotos_list().size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View view, ViewGroup viewGroup) {
View v = view;
ImageView picture;
TextView name;
if(v == null) {
v = inflater.inflate(R.layout.other, viewGroup, false);
v.setTag(R.id.picture, v.findViewById(R.id.picture));
v.setTag(R.id.text, v.findViewById(R.id.text));
}
picture = (ImageView)v.getTag(R.id.picture);
name = (TextView)v.getTag(R.id.text);
Item item = (Item)items.get(i);
picture.setImageResource(item.getDrawable());
name.setText(item.name);
Log.d("position", position+"");
imageLoader.displayImage(Constant.img_URL+Global.getPhotos_list().get(position).get("photo_name"), picture , options,null,context);
gridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v,
int position, long a) {
Intent i = new Intent(getApplicationContext(), FullImageActivity.class);
i.putExtra("idkey", position); // pass the id
startActivity(i);
}
});
return v;
}
}
}
FullImageActivity.java
public class FullImageActivity extends Activity {
Button download, setas;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.full_image);
setas = (Button) findViewById(R.id.setas);
download = (Button)findViewById(R.id.download);
// get intent data
final Intent i = getIntent();
// Selected image id
ImageView imageView = (ImageView) findViewById(R.id.full_image_view);
int id = getIntent().getIntExtra("idkey",-1); //get id
imageView.setImageResource(id);
setas.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
WallpaperManager myWallpaperManager
= WallpaperManager.getInstance(getApplicationContext());
try {
myWallpaperManager.setResource(R.id.full_image_view);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}
}
ImageAdapter.java
public class ImageAdapter extends BaseAdapter {
private LayoutInflater inflater;
List<Item> items;
public ImageAdapter(Context context,List<Item> items) {
inflater = LayoutInflater.from(context);
this.items = items;
}
@Override
public int getCount() {
return items.size();
}
@Override
public Object getItem(int i) {
return items.get(i);
}
@Override
public long getItemId(int i) {
return items.get(i).drawable;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
View v = view;
ImageView picture;
TextView name;
if(v == null) {
v = inflater.inflate(R.layout.other, viewGroup, false);
v.setTag(R.id.picture, v.findViewById(R.id.picture));
v.setTag(R.id.text, v.findViewById(R.id.text));
}
picture = (ImageView)v.getTag(R.id.picture);
name = (TextView)v.getTag(R.id.text);
Item item = (Item)items.get(i);
picture.setImageResource(item.getDrawable());
name.setText(item.name);
return v;
}
}
Items.java
public class Item {
String name;
int drawable;
public int getDrawable() {
return drawable;
}
public void setDrawable(int drawable) {
this.drawable = drawable;
}
public Item(String name, int id)
{
this.name= name;
this.drawable = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
答案 0 :(得分：1)
在gridView项目中单击
Item item =(Item) items.get(position);
int id = item.getDrawable();
Intent i = new Intent(ActivityName.this, FullImageActivity.class);
i.putExtra("idkey", id); // pass the id
startActivity(i);
然后在FullImageActivity
int id = getIntent().getIntExtra("idkey"); //get id
imageview.setImageResource(id); // set the drawable to imageview
您可以将以下内容移至DefaultFridView的onCreate
gridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v,
int position, long a) {
Item item =(Item) items.get(position);
int id = item.getDrawable();
Intent i = new Intent(ActivityName.this, FullImageActivity.class);
i.putExtra("idkey", id); // pass the id
startActivity(i);
}
});
此外，您还需要在DefaultGridView中使用List
List<Item> items = new ArrayList<Item>();
然后
items.add(new Item("One", R.drawable.abstact_one));
items.add(new Item("Two", R.drawable.abstract_three));
items.add(new Item("Three", R.drawable.image_two));
items.add(new Item("Four", R.drawable.image_four));
items.add(new Item("Five", R.drawable.image_five));
items.add(new Item("Six", R.drawable.image_nine));
items.add(new Item("Seven", R.drawable.image_ten));
然后
gridView.setAdapter(new ImageAdapter(),items);
另外，我不理解将ImageAdapter作为单独的内容和内部类。你为什么需要两个
答案 1 :(得分：0)
试试这个例子我是有用的