我想将存储的图像从SD卡中的AutoistDiary文件夹显示到图库中， 活动开始于我已编写该代码的模拟器中，但是当我在我的设备上执行相同的apk时，它会强制关闭，
这是我的代码，通过强制关闭实际设备， 在这种情况下该怎么做？
//get the gallery view---------------------------------------------------------------------
Gallery g = (Gallery) findViewById(R.id.gallery);
g.setAdapter(new ImageAdapter(this, SDCard()));
g.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View v, int position, long id)
{
Log.i("position", Integer.toString(position));
}
});
}
private List<String> SDCard()
{
Log.i("inside", "SDCard() method");
List<String> tFileList = new ArrayList<String>();
File dir = Environment.getExternalStorageDirectory();
// File yourFile = new File(dir, "path/to/the/file/inside/the/sdcard.ext");
//It have to be matched with the directory in SDCard
File f = new File( dir, "/AutoistDiary/");
//File f = new File( "/sdcard/");
File[] files=f.listFiles();
for(int i=0; i<files.length; i++)
{
File file = files[i];
/*It's assumed that all file in the path
are in supported type*/
tFileList.add(file.getPath());
msg="getting autioistdiary file path" + i+tFileList;
showToastMessage(msg);
}
return tFileList;
}
public class ImageAdapter extends BaseAdapter
{
int mGalleryItemBackground;
private Context mContext;
private List<String> FileList;
public ImageAdapter(Context c, List<String> fList)
{
mContext = c;
FileList = fList;
TypedArray a = obtainStyledAttributes(R.styleable.Gallery1);
mGalleryItemBackground = a.getResourceId(
R.styleable.Gallery1_android_galleryItemBackground,0);
a.recycle();
}
public int getCount() {
return FileList.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView,
ViewGroup parent) {
ImageView i = new ImageView(mContext);
Bitmap bm = BitmapFactory.decodeFile(FileList.get(position).toString());
i.setImageBitmap(bm);
i.setLayoutParams(new Gallery.LayoutParams(100,70));
i.setScaleType(ImageView.ScaleType.FIT_XY);
i.setBackgroundResource(mGalleryItemBackground);
Log.i("images ", "added to gallery from card");
msg="added to gallery from card";
showToastMessage(msg);
return i;
}
}
public TypedArray obtainStyledAttributes(int theme) {
// TODO Auto-generated method stub
return null;
}
这是我的logcat 12-27 12：02：42.016：I / inside（1217）：docsshow 12-27 12：02：42.056：D / szipinf（1217）：初始化膨胀状态12-27 12：02：42.086：D / szipinf（1217） ）：初始化膨胀状态12-27 12：02：42.216：I / inside（1217）：SDCard（）方法12-27 12：02：42.996：D / skia（1217）：--- SkImageDecoder :: Factory返回null 12-27 12：02：43.017：I / images（1217）：从卡片12-27添加到图库12：02：43.866：D / skia（1217）：--- SkImageDecoder :: Factory返回null 12-27 12 ：02：43.886：I / images（1217）：
答案 0 :(得分：2)
我浏览了你的代码，可能有两个问题，一个是没有获得SDCard路径，返回Bitmap为null，或者图像是两个大的显示。 希望这会对你有所帮助
if (requestCode == ACTIVITY_SELECT_IMAGE)
{
if (resultCode == Activity.RESULT_OK)
{
Uri selectedImage = data.getData();
galleryImatePath = getRealPathFromURI(selectedImage);
Bitmap bitmapThumbnail = null;
BitmapFactory.Options bfOptions =new BitmapFactory.Options();
try
{
bfOptions.inDither=false; //Disable Dithering mode
bfOptions.inPurgeable=true; //Tell to gc that whether it needs free memory, the Bitmap can be cleared
bfOptions.inInputShareable=true; //Which kind of reference will be used to recover the Bitmap data after being clear, when it will be used in the future
bfOptions.inSampleSize=5;
bfOptions.inTempStorage=new byte[32 * 1024];
//highImageReso.setVisibility(View.VISIBLE);
imgbutCross.setVisibility(View.VISIBLE);
imgbutPriview.setVisibility(View.VISIBLE);
/**
* Algorithm for uploading picture with low resolution
*/
InputStream stream;
try {
stream = getContentResolver().openInputStream(selectedImage);
myImage = BitmapFactory.decodeStream(stream, null , bfOptions);
} catch (Exception e2) {
e2.printStackTrace();
}
ByteArrayOutputStream bos = new ByteArrayOutputStream();
myImage.compress(Bitmap.CompressFormat.JPEG, 100, bos);
bitmapdata = bos.toByteArray();
/**
* Algorithm for selected image preview on Add Note Popup
*/
InputStream streamFromLocation = null;
try {
streamFromLocation = getContentResolver().openInputStream(selectedImage);
bitmapThumbnail = decodeSampledBitmapFromResource(streamFromLocation, 120, 120, selectedImage);
} catch (Exception e) {
e.printStackTrace();
}
imgbutPriview.setImageBitmap(bitmapThumbnail);
isPhoto = true;
}
catch (OutOfMemoryError e)
{
System.out.println("OutofMemoryException------------------"+e.toString());
bfOptions.inDither=false; //Disable Dithering mode
bfOptions.inPurgeable=true; //Tell to gc that whether it needs free memory, the Bitmap can be cleared
bfOptions.inInputShareable=true; //Which kind of reference will be used to recover the Bitmap data after being clear, when it will be used in the future
bfOptions.inSampleSize=8;
bfOptions.inTempStorage=new byte[32 * 1024];
try {
InputStream stream;
try {
stream = getContentResolver().openInputStream(selectedImage);
myImage = BitmapFactory.decodeStream(stream, null , bfOptions);
} catch (Exception e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
} catch (OutOfMemoryError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
ByteArrayOutputStream bos = new ByteArrayOutputStream();
myImage.compress(Bitmap.CompressFormat.JPEG, 100, bos);
bitmapdata = bos.toByteArray();
/**
* Algorithm for selected image preview on Add Note Popup
*/
InputStream streamFromLocation = null;
try {
streamFromLocation = getContentResolver().openInputStream(selectedImage);
bitmapThumbnail = decodeSampledBitmapFromResource(streamFromLocation, 120, 120, selectedImage);
} catch (Exception e2) {
e2.printStackTrace();
}
imgbutPriview.setImageBitmap(bitmapThumbnail);
isPhoto = true;
}
catch(Exception e)
{
}
}
}