画像を表示

sdカードの画像を1枚1枚表示するには、すべてロードして表示する必要があります.1枚をロードすると表示が遅くなります.

public class Pics extends Activity { private ImageView image; private String[] mFiles; private int mFilePosition = 0; private ArrayList<Bitmap> bitArray; private Bitmap b; private int i; @Override public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.main);     image = (ImageView) findViewById(R.id.image);     bitArray = new ArrayList<Bitmap>();     File images = Environment             .getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);     try {         images.createNewFile();     } catch (IOException e) {         // TODO Auto-generated catch block         e.printStackTrace();     }     Log.e("file path", images.getAbsolutePath());     File[] imagelist = images.listFiles(new FilenameFilter() {         public boolean accept(File dir, String name) {             return ((name.endsWith(".jpg")) || (name.endsWith(".png")));         }     });     mFiles = new String[imagelist.length];     Log.e("size", imagelist.length + "");     for (int i = 0; i < imagelist.length; i++) {         mFiles[i] = imagelist[i].toString();     }     getImageFromSDCard(); } public void getImageFromSDCard() {     BitmapFactory.Options options = new BitmapFactory.Options();     options.inSampleSize = 8;     try {         for (int j = 0; j < mFiles.length; j++) {             Log.d("", mFiles[mFilePosition]);             b = BitmapFactory.decodeFile(mFiles[j], null);             bitArray.add(b);         }     } catch (Exception e) {         // Log error     background-color: transparent; margin: 0px; color: #000000; font-size: 14px; vertical-align: baseline; bord