SDカードに保存されている何百もの画像がありました。これらのローカル パスを sqlite に入れました。このために、ローカル パスを使用してこれらの画像を表示する必要があります。ファイルをビットマップにデコードし、これらの bimap を使用してリストビューを表示します。これで問題ありません。しかし、そのリストビューをスクロールすると、次のような OutOfMemmory 問題が発生しました。 : java.lang.OutOfMemoryError: ビットマップ サイズが android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) で VM の予算を超えています
public class AllGalleryItemsAdapter extends BaseAdapter {
int[] adata = null;
int screenheight,screenwidth;
Context mContext;
private LayoutInflater inflator ;
private int[] children;
int flag;
ArrayList<String> imagepositionPath = new ArrayList<String>();
ArrayList<ArrayList<String>> imagePath = new ArrayList<ArrayList<String>>();
ArrayList<ArrayList<Bitmap>> bitmaplist= new ArrayList<ArrayList<Bitmap>>();
ArrayList<String> tagsText = new ArrayList<String>();
ArrayList<Integer> tagig_selected = new ArrayList<Integer>();
private ArrayList<Row> rows;
//public AllGalleryItemsAdapter(Context context, int[] children) {}
private ViewHolder holder;
private ViewHolder2 holder2;
private Bitmap myBitmapc1,myBitmapc2_1,myBitmapc2_2,myBitmapc3_1,myBitmapc3_2,myBitmapc3_3;
private ViewHolder3 holder3;
File imgFiles1;
Bitmap b = null;
public AllGalleryItemsAdapter(Context context,
ArrayList<String> tag_name,ArrayList<Integer> tag_id, ArrayList<ArrayList<String>> imageList) {
// TODO Auto-generated constructor stub
super();
imagepositionPath = new ArrayList<String>();
imagePath = new ArrayList<ArrayList<String>>();
tagsText = new ArrayList<String>();
bitmaplist= new ArrayList<ArrayList<Bitmap>>();
tagig_selected = new ArrayList<Integer>();
imagePath=imageList;
tagsText=tag_name;
tagig_selected = tag_id;
mContext=context;
@Override
public int getCount() {
// TODO Auto-generated method stub
return tagsText.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public int getItemViewType(int position) {
return imagePath.get(position).size();
}
@Override
public int getViewTypeCount() {
return 4;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View view = null;
switch (getItemViewType(position)) {
default:
if(convertView==null)
{
inflator = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
vg = (ViewGroup) inflator.inflate(R.layout.listone, null);
holder = new ViewHolder();
holder.listoneimage = (ImageView )vg.findViewById(R.id.singleimage);
holder.tagtext = (TextView)vg.findViewById(R.id.tagtext);
vg.setTag(holder);
view=vg;
}else{
holder = (ViewHolder) convertView.getTag();
view=convertView;
}
holder.tagtext.setText("#"+tagsText.get(position));
File f = new File(imagePath.get(position).get(0))
b= null;
b = decodeFile(f);
holder.listoneimage.setImageBimap(b);
holder.listoneimage.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int tagid = tagig_selected.get(position);
//System.out.println("this is tagidddddddddddddd in adapterrrrrrr "+tagid);
Intent in = new Intent(mContext.getApplicationContext(),AllGalleryItemsDetailsViewActivity.class);
in.putExtra("tagId", tagid);
startActivity(in);
}
});
break;
case 2:
if(convertView==null)
{
inflator = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
vg = (ViewGroup) inflator.inflate(R.layout.listsecond, null);
holder2 = new ViewHolder2();
holder2.listsecondleftimage = (ImageView)vg.findViewById(R.id.singlesecondimage);
holder2.listsecondthirdimage = (ImageView)vg.findViewById(R.id.singlesecondthirdimage);
holder2.tagtext = (TextView)vg.findViewById(R.id.tagtextintwo);
vg.setTag(holder2);
view=vg;
} else {
holder2 = (ViewHolder2) convertView.getTag();
holder2.listsecondleftimage.setImageBitmap(null);
holder2.listsecondthirdimage.setImageBitmap(null);
view=convertView;
}
holder2.tagtext .setText("#"+tagsText.get(position));
File f1 = new File(imagePath.get(position).get(0))
b= null;
b = decodeFile(f1);
holder2.listsecondleftimage.setImageBitmap(b);
File f2 = new File(imagePath.get(position).get(1))
b= null;
b = decodeFile(f2);
holder2.listsecondthirdimage.setImageBitmap(b);
holder2.listsecondleftimage.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int tagid = tagig_selected.get(position);
Intent in = new Intent(mContext.getApplicationContext(),AllGalleryItemsDetailsViewActivity.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra("tagId", tagid);
startActivity(in);
}
});
holder2.listsecondthirdimage.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int tagid = tagig_selected.get(position);
Intent in = new Intent(mContext.getApplicationContext(),AllGalleryItemsDetailsViewActivity.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra("tagId", tagid);
startActivity(in);
}
});
break;
case 3:
if(convertView==null)
{
inflator = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
vg = (ViewGroup) inflator.inflate(R.layout.list_secondview,null);
holder3 = new ViewHolder3();
holder3.iconsecond = (ImageView)vg.findViewById(R.id.largeinlistseconddynamic);
holder3.favsecond = (ImageView)vg.findViewById(R.id.smalimagefirstdynamic);
holder3.sharesecond = (ImageView)vg.findViewById(R.id.smallimageseconddynamic);
holder3.tagtext = (TextView)vg.findViewById(R.id.tagtextinthree);
vg.setTag(holder3);
view=vg;
}else{
holder3 = (ViewHolder3) convertView.getTag();
view=convertView;
}
holder3.tagtext .setText("#"+tagsText.get(position));
//
File f12 = new File(imagePath.get(position).get(0))
b= null;
b = decodeFile(f12);
holder3.iconsecond.setImageBitmap(b);
File f22 = new File(imagePath.get(position).get(1))
b= null;
b = decodeFile(f22);
holder3.favsecond.setImageBitmap(b);
File f23 = new File(imagePath.get(position).get(2))
b= null;
b = decodeFile(f23);
holder3.sharesecond.setImageBitmap(b);
holder3.iconsecond.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int tagid = tagig_selected.get(position);
Intent in = new Intent(mContext.getApplicationContext(),AllGalleryItemsDetailsViewActivity.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra("tagId", tagid);
startActivity(in);
}
});
holder3.favsecond.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int tagid = tagig_selected.get(position);
Intent in = new Intent(mContext.getApplicationContext(),AllGalleryItemsDetailsViewActivity.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra("tagId", tagid);
startActivity(in);
}
});
holder3.sharesecond.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int tagid = tagig_selected.get(position);
Intent in = new Intent(mContext.getApplicationContext(),AllGalleryItemsDetailsViewActivity.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra("tagId", tagid);
startActivity(in);
}
});
break;
}
return view;
}
}
class ViewHolder {
TextView tagtext,desc,liketext,sharetext,text1,text2,text3,secondtitle,seconddesc,secondshare,secondlike;
// ImageView icon,fav,like,share,secondicon,iconsecond,favsecond,sharesecond,listsecondleftimage,listsecondthirdimage;
ImageView listoneimage;
}
class ViewHolder2 {
TextView title,desc,liketext,sharetext,text1,text2,text3,secondtitle,seconddesc,secondshare,secondlike,tagtext;
// ImageButton icon,fav,like,share,secondicon,iconsecond,favsecond,sharesecond,listoneimage;
ImageView listsecondthirdimage;
ImageView listsecondleftimage;
}
class ViewHolder3 {
TextView title,desc,liketext,sharetext,text1,text2,text3,secondtitle,seconddesc,secondshare,secondlike,tagtext;
//ImageButton icon,fav,like,share,secondicon,listoneimage,listsecondleftimage,listsecondthirdimage;
ImageView sharesecond;
ImageView favsecond;
ImageView iconsecond;
}
ここに私のデコードファイルメソッドがあります
public Bitmap decodeFile(String filePath) {
try {
// Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filePath, o);
// The new size we want to scale to
final int REQUIRED_SIZE = LoginActiviy.screenWidth;;
// Find the correct scale value. It should be the power of 2.
int scale = 1;
while (o.outWidth / scale / 2 >= REQUIRED_SIZE && o.outHeight / scale / 2 >= REQUIRED_SIZE)
scale *= 2;
// Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeFile(filePath, o2);
} catch (Throwable e) {
e.printStackTrace();
}
return null;
}