显示图片

将sd卡的图片一张张显示出来，需要先全部加载然后在显示，如果加载一张显一张比较慢

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

  


  

    
    
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2011-03-27 15:06
      
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