我已經使用BaseAdapter
爲我的應用程序設置了一個圖庫。這是我用於畫廊的代碼。setSelection上的圖庫導致錯誤的項目被選中
homeGallery = (Gallery) findViewById(R.id.homeimggallery);
homeGallery.setSpacing(0);
homeGallery.setSelection(0);
homeGallery.setAdapter(new AddImgAdp(this));
private class AddImgAdp extends BaseAdapter {
private int GalItemBg, temp;
private Context cont;
private View convertView1;
private ViewGroup parent1;
private Bitmap mask = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.mask);
private Bitmap whiteBorder = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.stroke);
private Bitmap blueBorder = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.strokeactive);
private Bitmap src;
private Bitmap dest;
private Canvas canvas;
private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
private ImageView homeImgView;
private ImageView[] homeImgViewArr= new ImageView[arrThumbImage.length];
public AddImgAdp(Context c) {
cont = c;
TypedArray typArray = obtainStyledAttributes(styleable.GalleryTheme);
GalItemBg = typArray.getResourceId(styleable.GalleryTheme_android_galleryItemBackground, 0);
typArray.recycle();
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
}
public int getCount() {
return arrThumbImage.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
homeImgView = new ImageView(cont);
try{
src = BitmapFactory.decodeResource(mContext.getResources(), arrThumbImage[position]);
dest = Bitmap.createBitmap(src.getWidth(), src.getHeight(), Bitmap.Config.ARGB_8888);
canvas = new Canvas(dest);
canvas.drawColor(Color.TRANSPARENT);
canvas.save();
canvas.translate((canvas.getWidth() - src.getWidth())>> 1, (canvas.getHeight() - src.getHeight())>> 1);
canvas.drawBitmap(src, 0, 0, null);
canvas.drawBitmap(mask, 0, 0, paint);
canvas.drawBitmap(dest, 0, 0, paint);
homeImgView.setBackgroundDrawable(new BitmapDrawable(dest));
homeImgView.setImageResource(R.drawable.stroke);
homeImgView.setScaleType(ImageView.ScaleType.FIT_XY);
homeImgViewArr[position] = homeImgView;
} catch(Exception e) {}
return homeImgView;
}
}
畫廊看起來象下面這樣:
在手指運動,這是靠右行駛預期到左或從左到右。現在我想添加一些onClick
行動的項目。如果用戶點擊任何圖像,它將被選中並對齊。以下代碼用於此操作。
homeGallery.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id) {
homeGallery.setSelection(position);
}
});
但它的結果是錯誤的。如果我選擇了產品編號2,產品編號3選擇得到了,雖然爲setSelection動作射擊對項目沒有2.如果我點擊上面的PIC的最右邊的項目,這是導致如下行:
什麼是我的代碼的問題?
你知道嗎,指數從0開始,所以如果你正在設置第2然後在庫它會告訴你3項作爲選擇 – ingsaurabh
雅,我知道。所有的位置從0開始。 –