我要溢出，这是我在这里的第一个问题:)
我有一个画廊、图像切换器和用于从相机捕获图像的按钮。将图像捕获到 SD 卡后，我想将图像加载到图库并在图像切换对象中显示它。现在它可以很好地解决一个大问题。
为什么所有图像都在图库和图像切换器中旋转？
这是我的java代码：
protected void onCreate(Bundle savedInstanceState) {
iSwitcher = (ImageSwitcher) findViewById(R.id.ImageSwitcher01);
iSwitcher.setFactory(this);
iSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_in));
iSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_out));
setAllPics();
gallery = (Gallery) findViewById(R.id.Gallery01);
gallery.setAdapter(new ImageAdapter(this));
gallery.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
//iSwitcher.setImageResource(pics[arg2]);
//iSwitcher.setImageURI(mUrls[arg2]);
iSwitcher.setImageDrawable(new BitmapDrawable(getResources(),(bitmap[arg2])));
}
});
Button BtnGetPhoto = (Button) this.findViewById(R.id.BtnGetPicture);
}
public class ImageAdapter extends BaseAdapter {
private Context ctx;
int mGalleryItemBackground;
public ImageAdapter(Context c) {
ctx = c;
}
@Override
public int getCount() {
return mUrls.length;
//return pics.length;
}
@Override
public Object getItem(int arg0) {
return arg0;
}
@Override
public long getItemId(int arg0) {
return arg0;
}
@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
ImageView iView = new ImageView(ctx);
//iView.setImageURI(mUrls[arg0]);
iView.setImageDrawable(new BitmapDrawable(getResources(),(bitmap[arg0])));
//iView.setImageResource(pics[arg0]);
iView.setScaleType(ImageView.ScaleType.FIT_XY);
iView.setLayoutParams(new Gallery.LayoutParams(150, 150));
return iView;
}
}
private void setAllPics(){
File images = new File(PATH);
File[] imagelist = images.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String filename) {
return ((filename.endsWith(".jpg"))||(filename.endsWith(".png")));
}
});
/* There isn't enough memory to open up more than a couple camera photos */
/* So pre-scale the target bitmap into which the file is decoded */
/* Get the size of the ImageView */
int targetW = 350;//iSwitcher.getWidth();
int targetH = 220;//iSwitcher.getHeight();
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
mFiles = new String[imagelist.length];
int photoW[] = null;
int photoH[] = null;
int scaleFactor[] = null ;
photoW = new int[imagelist.length];
photoH = new int[imagelist.length];
scaleFactor = new int[imagelist.length];
bitmap = new Bitmap[imagelist.length];
for(int i= 0 ; i< imagelist.length; i++)
{
bmOptions.inJustDecodeBounds = true;
mFiles[i] = imagelist[i].getAbsolutePath();
bitmap[i] = BitmapFactory.decodeFile(mFiles[i], bmOptions);
/* Get the size of the image */
photoW[i] = bmOptions.outWidth;
photoH[i] = bmOptions.outHeight;
/* Figure out which way needs to be reduced less */
if((targetW > 0) || (targetH > 0 ))
scaleFactor[i] = Math.min(photoW[i]/targetW, photoH[i]/targetH);
/* Set bitmap options to scale the image decode target */
bmOptions.inJustDecodeBounds = false;
bmOptions.inSampleSize = scaleFactor[i];
bmOptions.inPurgeable = true;
try{
/* Decode the JPEG file into a Bitmap */
bitmap[i] = BitmapFactory.decodeFile(mFiles[i], bmOptions);
//iSwitcher.setImageDrawable(new BitmapDrawable(getResources(),(bitmap[i])));
} catch (OutOfMemoryError error) {
error.printStackTrace();
}
}
mUrls = new Uri[mFiles.length];
for(int i=0; i < mFiles.length; i++)
{
mUrls[i] = Uri.parse(mFiles[i]);
}
}
private OnClickListener onClickListener =new OnClickListener(){
// @Override
public void onClick(View v) {
switch (v.getId()){
case R.id.BtnGetPicture:
Intent cameraIntent = new Intent (android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
String imageFileName = "";
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
SetPathIfNotExist(PATH);
imageFileName = timeStamp + ".jpg";
File image = new File(PATH,imageFileName);
Uri uriSavedImage = Uri.fromFile(image);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);
startActivityForResult(cameraIntent,CAMERA_REQUEST);
break;
default:
break;
}
}
};
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {
setAllPics();
gallery.setAdapter(new ImageAdapter(this));
//Bitmap photo = (Bitmap) data.getExtras().get("data");
//imageView.setImageBitmap(photo);
}
}