标签：image share android-sdcard android
我尝试了2周,以查找如何成功共享存储在SD卡中的图像.
这个answer对我不起作用,也不是我要找的东西.
我正在使用Cam Preview应用程序将图像存储到SD,然后在应用程序内库中显示它们：
public class GalleryView extends Activity {
private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.gallery_view);
Gallery g = (Gallery) findViewById(R.id.gallery);
g.setAdapter(new ImageAdapter(this, ReadSDCard()));
g.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE);
}
});
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
Uri selectedImageUri = data.getData();
selectedImagePath = getPath(selectedImageUri);
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, selectedImagePath);
shareIntent.setType("image/*");
startActivity(Intent.createChooser(shareIntent, "Share image"));
}
}
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
@Override
public void onDestroy() {
super.onDestroy();
}
private List<String> ReadSDCard() {
createDirIfNotExists();
List<String> tFileList = new ArrayList<String>();
//It have to be matched with the directory in SDCard
File f = new File("/sdcard/Cam App");
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());
}
return tFileList;
}
class ViewHolder {
ImageView i;
}
public class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground;
private Context mContext;
private List<String> FileList;
LayoutInflater inflater = getLayoutInflater();
ViewHolder holder;
public ImageAdapter(Context c, List<String> fList) {
mContext = c;
FileList = fList;
TypedArray a = obtainStyledAttributes(R.styleable.GalleryTheme);
mGalleryItemBackground = a.getResourceId(R.styleable.GalleryTheme_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);
if (convertView == null) {
convertView = inflater.inflate(R.layout.gallery_item, parent, false);
holder = new ViewHolder();
holder.i = ((ImageView) convertView.findViewById(R.id.imagenGallery));
convertView.setTag(holder);
}
holder.i.setScaleType(ImageView.ScaleType.FIT_XY);
holder.i.setBackgroundResource(mGalleryItemBackground);
return i;
}
}
public TypedArray obtainStyledAttributes(int theme) {
// TODO Auto-generated method stub
return null;
}
}
画廊工作正常,但我不知道如何共享保存在SD上的图像.
如何访问Cam App文件夹中的图像并共享那一刻出现在图库中的图像？
我尝试使用位置,但是它仅适用于恒定图像.任何帮助/提示将不胜感激.
解决方法:
好吧,我终于找到了解决方案,但这并不是我想要的：
g.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Intent intent = new Intent();
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.setDataAndType(Uri.parse("file://" + "/sdcard/Cam App"), "image/*");
startActivityForResult(Intent.createChooser(intent, "Select image to share:"), SELECT_PICTURE);
}
});
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
Uri selectedImageUri = data.getData();
//OI FILE Manager
filemanagerstring = selectedImageUri.getPath();
//MEDIA GALLERY
selectedImagePath = getPath(selectedImageUri);
//NOW WE HAVE OUR WANTED STRING
if(selectedImagePath!=null)
System.out.println("selectedImagePath is the right one for you!");
else
System.out.println("filemanagerstring is the right one for you!");
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, selectedImageUri);
shareIntent.setType("image/*");
startActivity(Intent.createChooser(shareIntent, "Share image via:"));
}
}
}
@SuppressWarnings("deprecation")
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
if(cursor!=null) {
//HERE YOU WILL GET A NULLPOINTER IF CURSOR IS NULL
//THIS CAN BE, IF YOU USED OI FILE MANAGER FOR PICKING THE MEDIA
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
else return null;
}
如果有人有更好的解决方案,请分享.
标签：image,share,android-sdcard,android 来源： https://codeday.me/bug/20191101/1982399.html
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