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Я запущенной мое приложение, и он показал эту ошибку:конфликт с другим классом
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wunderlist.slidinglayersample/com.wunderlist.slidinglayersample.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void app.AppController.addToRequestQueue(com.android.volley.Request)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void app.AppController.addToRequestQueue(com.android.volley.Request)' on a null object reference
at com.wunderlist.slidinglayersample.MainActivity.redirect(MainActivity.java:331)
at com.wunderlist.slidinglayersample.MainActivity.onCreate(MainActivity.java:110)
at android.app.Activity.performCreate(Activity.java:5937)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Это все MainActivity:
package com.wunderlist.slidinglayersample;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.SharedPreferences;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MenuItem;
import android.view.View;
import android.widget.RelativeLayout.LayoutParams;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.VolleyLog;
import com.android.volley.toolbox.JsonArrayRequest;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.wunderlist.slidinglayer.SlidingLayer;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import app.AppController;
import util.Content;
public class MainActivity extends Activity {
private GoogleMap googleMap;
// json object response url
private String urlJsonObj = "http://api.androidhive.info/volley/person_object.json";
// json array response url
private String urlJsonArry = "http://heimerdinger.pe.hu/getjson.php";
//https://gist.githubusercontent.com/sanjogshrestha/968f713b4c707f4cfbd4/raw/b2c9fd087ad3d274ac8ae043049a8e98ce975814/Json
//http://api.androidhive.info/volley/person_array.json
private static String TAG = MainActivity.class.getSimpleName();
// Progress dialog
private ProgressDialog pDialog;
Content content = new Content();
public static String valueEntered;
// temporary string to show the parsed response
private String jsonResponse;
private SlidingLayer mSlidingLayer;
private TextView swipeText;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
googleMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
googleMap.getUiSettings();
googleMap.getUiSettings().setZoomControlsEnabled(true);
bindViews();
initState();
redirect();
}
@SuppressLint("NewApi")
@Override
protected void onResume() {
super.onResume();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
getActionBar().setDisplayHomeAsUpEnabled(true);
}
}
/**
* View binding
*/
private void bindViews() {
mSlidingLayer = (SlidingLayer) findViewById(R.id.slidingLayer1);
// swipeText = (TextView) findViewById(R.id.swipeText);
}
/**
* Initializes the origin state of the layer
*/
private void initState() {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
setupSlidingLayerPosition(prefs.getString("layer_location", "right"));
setupShadow(prefs.getBoolean("layer_has_shadow", false));
setupLayerOffset(prefs.getBoolean("layer_has_offset", false));
setupPreviewMode(prefs.getBoolean("preview_mode_enabled", false));
}
private void setupSlidingLayerPosition(String layerPosition) {
LayoutParams rlp = (LayoutParams) mSlidingLayer.getLayoutParams();
int textResource;
Drawable d;
// if (layerPosition.equals("right")) {
textResource = R.string.swipe_right_label;
d = getResources().getDrawable(R.drawable.container_rocket_right);
mSlidingLayer.setStickTo(SlidingLayer.STICK_TO_RIGHT);
d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
// swipeText.setCompoundDrawables(null, d, null, null);
// swipeText.setText(getResources().getString(textResource));
mSlidingLayer.setLayoutParams(rlp);
}
private void setupShadow(boolean enabled) {
if (enabled) {
mSlidingLayer.setShadowSizeRes(R.dimen.shadow_size);
mSlidingLayer.setShadowDrawable(R.drawable.sidebar_shadow);
} else {
mSlidingLayer.setShadowSize(0);
mSlidingLayer.setShadowDrawable(null);
}
}
private void setupLayerOffset(boolean enabled) {
int offsetDistance = enabled ? getResources().getDimensionPixelOffset(R.dimen.offset_distance) : 0;
mSlidingLayer.setOffsetDistance(offsetDistance);
}
private void setupPreviewMode(boolean enabled) {
int previewOffset = enabled ? getResources().getDimensionPixelOffset(R.dimen.preview_offset_distance) : -1;
mSlidingLayer.setPreviewOffsetDistance(previewOffset);
}
public void buttonClicked(View v) {
switch (v.getId()) {
case R.id.buttonOpen:
mSlidingLayer.openLayer(true);
break;
case R.id.buttonClose:
mSlidingLayer.closeLayer(true);
break;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
if (mSlidingLayer.isOpened()) {
mSlidingLayer.closeLayer(true);
return true;
}
default:
return super.onKeyDown(keyCode, event);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
finish();
return true;
}
private void redirect() {
//showpDialog();
JsonArrayRequest req = new JsonArrayRequest(urlJsonArry,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
try {
Content content = new Content();
// Parsing json array response
// loop through each json object
jsonResponse = "";
for (int i = 0; i < response.length(); i++) {
JSONObject person = (JSONObject) response
.get(i);
String name = person.getString("nosaukums");
String email = person.getString("nosaukums");
String relation = person.getString("nosaukums");
Double lat=person.getDouble("latCo");
Double lng=person.getDouble("longCo");
content.setName(name);
content.setPopulation(email);
content.setlat(lat);
content.setlng(lng);
content.setRelation(relation);
System.out.println("name="+content.getName()+content.getlat());
LatLng lt = new LatLng(content.getlat(), content.getlng());
content.setLatlng(lt);
//valueEntered=lt.toString();
System.out.println("address="+content.getLatlng());
/*String home = latlng.getLong("home");
String mobile = phone.getString("mobile");*/
System.out.println("relation="+content.getRelation());
jsonResponse += "Name: " + name + "\n\n";
jsonResponse += "Population: " + email + "\n\n";
jsonResponse += "Latitude: " + lat + "\n\n";
jsonResponse += "Longitude: " + lng + "\n\n\n";
jsonResponse += "Relation" + relation +"\n\n\n";
if(content.getRelation().equals("son"))
{
googleMap.addMarker(new MarkerOptions()
.position(lt)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.marker_son))
.snippet(email)
.title(content.getName())).showInfoWindow();
}
else
{
googleMap.addMarker(new MarkerOptions()
.position(lt)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.marker_daughter))
.title(content.getName())).showInfoWindow();
}
CameraPosition cameraPosition = new CameraPosition.Builder().target(lt).zoom(15.0f).build();
CameraUpdate cameraUpdate = CameraUpdateFactory.newCameraPosition(cameraPosition);
googleMap.moveCamera(cameraUpdate);
}
//txtResponse.setText(jsonResponse);
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"Error: " + e.getMessage(),
Toast.LENGTH_LONG).show();
}
//hidepDialog();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_SHORT).show();
//hidepDialog();
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(req);
}
}
Есть ли у вас какие-либо идеи, как решить эту проблему? Потому что я думаю, что я импортировал все правильно, и в манифесте MainActivity упоминается как MAIN.
EDIT:
кажется, что Manifest тоже нормально:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.wunderlist.slidinglayersample"
android:versionCode="2"
android:versionName="1.5">
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:launchMode="singleTop">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
...
AppController.java:
import android.app.Application;
import android.text.TextUtils;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.Volley;
import util.SslHttpStack;
//import com.android.volley.RequestQueue;
public class AppController extends Application {
public static final String TAG = AppController.class.getSimpleName();
private RequestQueue mRequestQueue;
private static AppController mInstance;
@Override
public void onCreate() {
super.onCreate();
mInstance = this;
}
public static synchronized AppController getInstance() {
return mInstance;
}
public RequestQueue getRequestQueue() {
if (mRequestQueue == null) {
mRequestQueue = Volley.newRequestQueue(getApplicationContext(),new SslHttpStack(false));
}
return mRequestQueue;
}
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);
getRequestQueue().add(req);
}
public void cancelPendingRequests(Object tag) {
if (mRequestQueue != null) {
mRequestQueue.cancelAll(tag);
}
}
}
если вас понял, то я должен положить AppController.getInstance() == NULL перед: AppController.getInstance() addToRequestQueue (REQ);. и я сделал это, и он сказал «Не заявление» – AndroidProgrammer
@AndroidProgrammer Пожалуйста, покажите мне класс AppController – smail2133
Обновленный вопрос с AppController – AndroidProgrammer