小编Mon*_*ali的帖子

我以以下格式嵌套了json数组。我正在使用凌空库进行JSON解析。

{
"City": [{
        "name": "Mumbai",
        "Mumbai": [{
            "area": "andheri",

            "diler": [{
                "DName": "yuvraj"
            }]
        }, {
            "area": "jogeshwari"
        }, {
            "area": "goregaon"
        }]
    },

    {

        "name": "Nashik",
        "Nashik": [{
            "area": "clg rd",
            "diler": [{
                "DName": "yuvraj"
            }]
        }, {
            "area": "GP RD",
            "diler": [{
                "DName": "Roshan"
            }]
        }, {
            "area": "CBS",
            "diler": [{
                "DName": "Deepak"
            }]
        }]

    }, {
        "name": "Bengaluru"
    }
]}

以下是我在android中编写的代码。

   jsonURL = "http://192.168.1.11/cycle_webservices/testing.json";

    buttonReq.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            JsonArrayRequest jsonArrayRequest = …

我有一个关于BitMapFactory.decodeFile的问题.

在我的应用程序中,我希望用户能够从他/她的设备中选择图像或拍照.然后必须在ImageView中显示

这是代码片段:

Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
                    cursor.moveToFirst();
                    int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                    String picturePath = cursor.getString(columnIndex);
                    cursor.close();
                    MyImage image = new MyImage();
                    image.setTitle("Test");
                    image.setDescription("test choose a photo from gallery and add it to " + "list view");
                    image.setDatetime(System.currentTimeMillis());
                    image.setPath(picturePath); 

我得到了这个例外:

BitmapFactory: Unable to decode stream: java.io.FileNotFoundException: /storage/emulated/0/WhatsApp/Media/WhatsApp Images/IMG-20170302-WA0012.jpg: open failed: EACCES (Permission denied)

怎么解决它.请帮帮我.谢谢你...