图片uri与path的相互转换

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/** * Uri to path * */public static String getFilePathFromContentUri(final Context context, final Uri uri) {    if ( null == uri ) return null;    final String scheme = uri.getScheme();    String data = null;    if ( scheme == null )        data = uri.getPath();    else if ( ContentResolver.SCHEME_FILE.equals( scheme ) ) {        data = uri.getPath();    } else if ( ContentResolver.SCHEME_CONTENT.equals(scheme) ) {        Cursor cursor = context.getContentResolver().query(uri, new String[] { MediaStore.Images.ImageColumns.DATA }, null, null, null );        if ( null != cursor ) {            if ( cursor.moveToFirst() ) {                int index = cursor.getColumnIndex( MediaStore.Images.ImageColumns.DATA );                if ( index > -1 ) {                    data = cursor.getString( index );                }            }            cursor.close();        }    }    return data;}

/** * Path to Uri * */
public static Uri getUriFromPath(String filePath){
    return Uri.fromFile(new File(filePath));
}
bitmap转uri：
Uri uri = Uri.parse(MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, null, null));

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