/**
* 获得照片的绝对路径
*
* @param uri 拍照或者选取照片返回的数据
* @return 返回字符串
*/
private String getImagePath(final Uri uri) {
String[] projection = {MediaStore.Images.Media.DATA};
Cursor cursor = MediaStore.Images.Media.query(getContentResolver(), uri, projection);
cursor.moveToFirst();
String path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));
cursor.close();
return path;
}
public static String getPathOfPhotoByUri(Context context, Uri uri) {
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor =
MediaStore.Images.Media.query(context.getContentResolver(), uri, filePathColumn);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
return picturePath;
}
private String getRealPathFromUri(Uri contentUri) {
String path = null;
String scheme = contentUri.getScheme();
if (scheme.equals("content")) {
String[] proj = {MediaStore.Images.Media.DATA};
Cursor cursor =
MediaStore.Images.Media.query(getContentResolver(), contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
if (cursor != null) {
if (cursor.moveToFirst() == true) path = cursor.getString(column_index);
cursor.close();
}
cursor = null;
} else if (scheme.equals("file")) path = contentUri.getPath();
return path;
}
protected Bitmap getThumbnailOfLastPhoto() {
Cursor cursor =
MediaStore.Images.Media.query(
getContentResolver(),
MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
new String[] {
MediaStore.Images.ImageColumns._ID, MediaStore.Images.ImageColumns.DATE_TAKEN
},
null,
null,
MediaStore.Images.ImageColumns.DATE_TAKEN + " DESC LIMIT 1");
Bitmap thumb = null;
if (cursor.moveToNext()) {
int id = cursor.getInt(0);
thumb =
MediaStore.Images.Thumbnails.getThumbnail(
getContentResolver(), id, MediaStore.Images.Thumbnails.MINI_KIND, null);
}
cursor.close();
return thumb;
}
private Uri getLatestCameraPhoto() {
String selection = ImageColumns.BUCKET_DISPLAY_NAME + " = 'Camera'";
String[] selectionArgs = null;
String sort = ImageColumns._ID + " DESC LIMIT 1";
Cursor c =
android.provider.MediaStore.Images.Media.query(
mmContext.getContentResolver(),
Images.Media.EXTERNAL_CONTENT_URI,
new String[] {ImageColumns._ID},
selection,
selectionArgs,
sort);
try {
int idx = c.getColumnIndex(ImageColumns._ID);
if (c.moveToFirst()) {
return Uri.withAppendedPath(Images.Media.EXTERNAL_CONTENT_URI, c.getString(idx));
}
return null;
} finally {
c.close();
}
}