1. 程式人生 > >Android4.4開啟系統相簿返回Null問題

Android4.4開啟系統相簿返回Null問題

public interface PhotoCallBack {
        void onSuccess(String picturePath);// 拿取相片成功
        void onFailure();// 拿取相片失敗
    }

    /**
     * 獲取圖片路徑
     * 
     * @param context
     * @param data
     * @param callback
     * @return
     */
    public static void getPhotoURLByAlbum(Context context, Intent data, PhotoCallBack callback) {
        if
(data == null) { callback.onFailure(); return; } final Uri selectedImage = data.getData(); if (selectedImage == null) { callback.onFailure(); return; } String picturePath = ""; // 關於Android4.4的圖片路徑獲取,如果回來的Uri的格式有兩種
if (Build.VERSION.SDK_INT >= 19 && DocumentsContract.isDocumentUri(context, selectedImage)) { String wholeID = DocumentsContract.getDocumentId(selectedImage); String id = wholeID.split(":")[1]; String[] column = { MediaStore.Images.Media.DATA }; String sel = MediaStore.Images.Media._ID + "=?"
; Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, column, sel, new String[] { id }, null); if (cursor.moveToNext()) { int columnIndex = cursor.getColumnIndex(column[0]); picturePath = cursor.getString(columnIndex); callback.onSuccess(picturePath);// 獲取圖片路徑 } cursor.close(); } else { String[] projection = { MediaStore.Images.Media.DATA }; Cursor cursor = context.getContentResolver().query(selectedImage, projection, null, null, null); if (cursor.moveToNext()) { int column_index = cursor.getColumnIndex(MediaStore.Images.Media.DATA); picturePath = cursor.getString(column_index); callback.onSuccess(picturePath);// 獲取圖片路徑 } cursor.close(); } }

在onActivityResult中處理返回的資料。
同時一定要在開啟相簿的邏輯中做判斷

Intent intent = new Intent();
intent.setType("image/*");// 從所有圖片中進行選擇
//根據版本號不同使用不同的Action  
if (Build.VERSION.SDK_INT <19) {  
    intent.setAction(Intent.ACTION_GET_CONTENT);  
}else {  
    intent.setAction(Intent.ACTION_OPEN_DOCUMENT);  
}
((Activity) context).startActivityForResult(intent, Constants.REQUEST_CODE_HEADPIC_PICK_PHOTO);