java – 图像显示不正确

我正在制作一个使用lazylist显示图像和文本的 Android应用程序.

我从服务器的json获取数据.当我手动将一些数据和图像路径输入到MysqL数据库中时,这些图像会在应用程序中正确显示.

但是当我从移动摄像头拍摄图像并上传该图像时,它会在MysqL数据库中正确插入路径,但它不会显示在我的应用程序中.

有人能告诉我为什么会遇到这个问题吗？我的logcat中没有出错.

有其他人有这个问题吗？如果是,那么你是如何解决的？请帮我.

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.home_list);

    inBoxList = new ArrayList<HashMap<String,String>>();

    List<String> profile_photo = new ArrayList<String>();
    List<String> userName = new ArrayList<String>();
    List<String> place = new ArrayList<String>();

    list=(ListView)findViewById(R.id.list);
    //adapter=new LazyAdapter(this,tS,mTitles);
    list.setAdapter(adapter);

    /********************************/

    JSONObject json = userFunctions.homeData();

    Log.e("Data",json.toString());

    // Check your log cat for JSON reponse
    // Log.d("InBox JSON: ",json.toString());

    try {
        data = json.getJSONArray("data");
        Log.d("inBox array: ",data.toString());
        // looping through All messages
        for (int i = 0; i < data.length(); i++) {
            JSONObject c = data.getJSONObject(i);

            // Storing each json item in variable
            String uid = c.getString("uid");
            String name = c.getString("name");
            String success = c.getString("success");
            String profile_img = c.getString("profile_photo");
            //String date = c.getString(TAG_DATE);

            JSONObject places = c.getJSONObject(TAG_PLACES);
            String place_photo = places.getString(TAG_PLACE_IMG);

            Log.e("place_photo",place_photo);
            // creating new HashMap
            HashMap<String,String> map = new HashMap<String,String>();

            // adding each child node to HashMap key => value
            map.put("uid",uid);
            map.put("name",name);
            map.put("success",success);
            map.put("profile_image",profile_img);

            profile_photo.add(profile_img);
            userName.add(name);
            place.add(place_photo);
            // adding HashList to ArrayList
            inBoxList.add(map);
        }

        profile_image = new String[profile_photo.size()];
        user_name = new String[userName.size()];
        place_image = new String[(place.size())];

        profile_photo.toArray(profile_image);
        userName.toArray(user_name);
        place.toArray(place_image);
        adapter = new LazyAdapter(this,profile_image,user_name,place_image);
        list.setAdapter(adapter);
    } catch (JSONException e) {
        e.printstacktrace();
    }

    /*******************************/
}

这是懒惰的适配器类

public class LazyAdapter extends BaseAdapter {

private Activity activity;
private String[] data;
private String[] name;
private String[] place_photo;
private static LayoutInflater inflater=null;
public ImageLoader imageLoader; 

public LazyAdapter(Activity a,String[] d,String[] username,String[] place_image) {
    activity = a;
    data = d;
    name = username;
    place_photo = place_image;
    //Log.e("path",d.toString());
    inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    imageLoader=new ImageLoader(activity.getApplicationContext());
}

public int getCount() {
    return data.length;
}

public Object getItem(int position) {
    return position;
}

public long getItemId(int position) {
    return position;
}

public View getView(int position,View convertView,ViewGroup parent) {
    View vi=convertView;
    if(convertView==null)
        vi = inflater.inflate(R.layout.home_list_item,null);

    //TextView text=(TextView)vi.findViewById(R.id.text);
    TextView title = (TextView)vi.findViewById(R.id.username);
    ImageView image=(ImageView)vi.findViewById(R.id.image);
    ImageView place=(ImageView)vi.findViewById(R.id.place);
    //text.setText("item "+position);
    title.setText(name[position]);
    imageLoader.displayImage(data[position],image);
    imageLoader.displayImage(place_photo[position],place);
    return vi;
}
}

解决方法

But when I take image from mobile camera and upload that image,it does insert all the path properly in MysqL database but it is still not shown in my app

新图像和旧图像的URL是否相同？

如果是这样,则可能是图像缓存的情况. ImageLoader使用URL作为密钥缓存图像….清除App数据后再试一次.