ローカルホストを使用して画像を取得し、ImageView で表示しています。何らかの理由で、Factory returned null エラーが発生しています。コードを何度も見ましたが、何が問題なのかわかりません。どんな助けでも大歓迎です!
GalleryZoom.java
public class Zoom extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.gallery_zoom);
String selection = getIntent().getExtras().getString("image");
Toast.makeText(this, selection, Toast.LENGTH_LONG).show();
new backgroundLoader().execute();
}
private class backgroundLoader extends AsyncTask<Void, Void, Void> {
Bitmap bmp;
@Override
protected Void doInBackground(Void... params) {
bmp = DecodeBitmapSampleSize(getIntent().getExtras().getString("image"), 48, 64);
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
ImageView image = (ImageView) findViewById(R.id.imageZoom);
image.setImageBitmap(bmp);
}
}
public Bitmap DecodeBitmapSampleSize (String strURL, int reqWidth, int reqHeight) {
InputStream in = null;
Bitmap bmp = null;
in = OpenHttpConnection(strURL);
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeStream(in, null, options);
options.inSampleSize = calculateSampleSize(options, reqWidth, reqHeight);
options.inJustDecodeBounds = false;
bmp = BitmapFactory.decodeStream(in, null, options);
return bmp;
}
private InputStream OpenHttpConnection(String strURL) {
try {
URL url = new URL(strURL);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
InputStream in = new BufferedInputStream(connection.getInputStream());
return in;
} catch (Exception exception) {
exception.printStackTrace();
return null;
}
}
public static int calculateSampleSize(BitmapFactory.Options options,
int reqWidth, int reqHeight) {
final int width = options.outWidth;
final int height = options.outHeight;
int inSampleSize = 1;
if (width > reqWidth || height > reqHeight) {
if (width > height) {
inSampleSize = Math.round((float) height / (float) reqHeight);
} else {
inSampleSize = Math.round((float) width / (float) reqWidth);
}
}
return inSampleSize;
}
}
LogCat ログ
08-13 21:55:19.578: I/MemoryCache(3197): MemoryCache maximum limit is 6MB
08-13 21:55:19.658: I/MemoryCache(3197): cache size = 24600, length = 1
08-13 21:55:19.688: I/MemoryCache(3197): cache size = 24600, length = 1
08-13 21:55:19.708: I/MemoryCache(3197): cache size = 24600, length = 1
08-13 21:55:19.708: I/MemoryCache(3197): cache size = 24600, length = 1
08-13 21:55:20.628: I/MemoryCache(3197): cache size = 71600, length = 2
08-13 21:55:20.678: I/MemoryCache(3197): cache size = 101408, length = 3
08-13 21:55:26.228: I/MemoryCache(3197): MemoryCache maximum limit is 6MB
08-13 21:55:26.228: I/MemoryCache(3197): MemoryCache maximum limit is 6MB
08-13 21:55:26.998: D/skia(3197): --- SkImageDecoder::Factory returned null