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私はvolley multipartリクエスタを使用しようとしています。次のエラー。nullオブジェクトリファレンスで仮想メソッド 'void com.newflame.pro.app.AppController.addToRequestQueue（com.android.volley.Request）'を呼び出そうとしました
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.newflame.pro.app.AppController.addToRequestQueue(com.android.volley.Request)' on a null object reference
at com.newflame.pro.Networking.MultiPartRequester.multipart_volley_requester(MultiPartRequester.java:64)
at com.newflame.pro.Networking.MultiPartRequester.<init>(MultiPartRequester.java:35)
at com.newflame.pro.flame.LoginNew.sendDataToServer(LoginNew.java:313)
at com.newflame.pro.flame.LoginNew.access$100(LoginNew.java:75)
at com.newflame.pro.flame.LoginNew$2$1$1.callback(LoginNew.java:197)
at com.androidquery.callback.BitmapAjaxCallback.checkCb(BitmapAjaxCallback.java:502)
at com.androidquery.callback.BitmapAjaxCallback.callback(BitmapAjaxCallback.java:472)
at com.androidquery.callback.BitmapAjaxCallback.callback(BitmapAjaxCallback.java:65)
at com.androidquery.callback.AbstractAjaxCallback.callback(AbstractAjaxCallback.java:499)
at com.androidquery.callback.AbstractAjaxCallback.afterWork(AbstractAjaxCallback.java:1261)
at com.androidquery.callback.AbstractAjaxCallback.run(AbstractAjaxCallback.java:986)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
はここにここに私のMultipartRequester.java
public class MultiPartRequester {
Context activity;
private AsyncTaskCompleteListener asyncTaskCompleteListener;
int service_code;
public MultiPartRequester(Context activity, Map<String, String> map, int service_code, AsyncTaskCompleteListener asyncTaskCompleteListener) {
this.activity = activity;
this.service_code = service_code;
this.asyncTaskCompleteListener = asyncTaskCompleteListener;
String url = map.get(Const.URL);
map.remove(Const.URL);
multipart_volley_requester(url, map);
}
void multipart_volley_requester(String url, Map<String, String> map) {
MultipartRequest mr = new MultipartRequest(url, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.d("Ashutosh", error.toString());
String msg = "No network connection.Please check your internet";
//AndyUtils.showLongToast(msg,activity);
//AndyUtils.removeProgressDialog();
}
}, new Response.Listener<String>() {
@Override
public void onResponse(String response)
{
Log.d("MultipartResponse",response);
asyncTaskCompleteListener.onTaskCompleted(response.toString(), service_code);
}
}, map);
mr.setRetryPolicy(new DefaultRetryPolicy(Const.TIMEOUT,
Const.MAX_RETRY,
Const.DEFAULT_BACKOFF_MULT));
AppController.getInstance().addToRequestQueue(mr);
}
}
であり、これはImはmultipartrequesterクラス
private void sendDataToServer() {
Log.d("shan","Thread1Executing");
Log.d("shanpic",name);
Log.d("shanpic",sSocial_unique_id);
HashMap<String, String> map = new HashMap<>();
map.put(Const.URL, Constant.loginurl);
map.put(Const.Params.SOCIAL_UNIQUE_ID, sSocial_unique_id);
map.put(Const.Params.LOGIN_BY, Constant.FACEBOOK);
map.put(Const.Params.USERNAME, name);
// map.put(Const.Params.DOB, dob);
if(sEmailId!=""){
map.put(Const.Params.EMAIL, sEmailId);
}
map.put(Const.Params.PICTURE, filePath);
map.put(Const.Params.DEVICE_TYPE, Const.ANDROID);
if(preferences.getString(PROPERTY_REG_ID, "")!="")
{
map.put(Const.Params.DEVICE_TOKEN, preferences.getString(PROPERTY_REG_ID, ""));
}
new MultiPartRequester(LoginNew.this, map, Const.ServiceCode.REGISTER, this);
}
public class AppController extends Application {
public static final String TAG = AppController.class.getSimpleName();
private static double total=0;
public static ArrayList<Menu> menuListGlobal = new ArrayList<Menu>();
private RequestQueue mRequestQueue;
private ImageLoader mImageLoader;
LruBitmapCache mLruBitmapCache;
private static AppController mInstance;
public static double getTotal() {
return total;
}
public static void setTotal(double total) {
AppController.total = total;
}
@Override
public void onCreate() {
super.onCreate();
}
public static synchronized AppController getInstance() {
return mInstance;
}
public RequestQueue getRequestQueue() {
if (mRequestQueue == null) {
mRequestQueue = Volley.newRequestQueue(getApplicationContext());
}
return mRequestQueue;
}
public ImageLoader getImageLoader() {
getRequestQueue();
if (mImageLoader == null) {
getLruBitmapCache();
mImageLoader = new ImageLoader(this.mRequestQueue, mLruBitmapCache);
}
return this.mImageLoader;
}
public LruBitmapCache getLruBitmapCache() {
if (mLruBitmapCache == null)
mLruBitmapCache = new LruBitmapCache();
return this.mLruBitmapCache;
}
public <T> void addToRequestQueue(Request<T> req, String tag) {
req.setTag(TextUtils.isEmpty(tag) ? TAG : tag);
getRequestQueue().add(req);
}
public <T> void addToRequestQueue(Request<T> req) {
req.setTag(TAG);
req.setShouldCache(false);
getRequestQueue().add(req);
}
public void cancelPendingRequests(Object tag) {
if (mRequestQueue != null) {
mRequestQueue.cancelAll(tag);
}
}
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(base);
}
}
です
私が作っているところ誰かが、私を導いてください。間違い。 –
'AppController'クラスでは' onCreate（） 'メソッドで' mInstance = this; 'を使います。 – Piyush