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Kullanıcıya ait test sonucu bulunmamaktadır.
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1"E/AndroidRuntime: FATAL EXCEPTION: main Process:" Hatası
Kodlarım bunlar;
PersonsAdapter.java
package com.androidevreni.jsontutorial.adapters;
package com.androidevreni.jsontutorial.adapters;
import android.graphics.Color;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.androidevreni.jsontutorial.R;
import com.androidevreni.jsontutorial.models.Person;
import java.util.List;
/**
* Created by mustafademir on 19.06.2016.
*/
public class PersonsAdapter extends RecyclerView.Adapter<PersonsAdapter.MyViewHolder> {
private List<Person> personsList;
public class MyViewHolder extends RecyclerView.ViewHolder {
public TextView name, city, country;
public RelativeLayout renk;
public MyViewHolder(View view) {
super(view);
// name = (TextView) view.findViewById(R.id.atur);
city = (TextView) view.findViewById(R.id.atur);
country = (TextView) view.findViewById(R.id.icerik);
renk = (RelativeLayout) view.findViewById(R.id.list_item_id);
}
}
public PersonsAdapter(List<Person> personsList) {
this.personsList = personsList;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item, parent, false);
return new MyViewHolder(itemView);
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
Person person = personsList.get(position);
//holder.name.setText(person.name);
holder.city.setText(person.city);
holder.country.setText(person.country);
holder.renk.setBackgroundColor(Color.parseColor(person.renk));
}
@Override
public int getItemCount() {
return personsList.size();
}
}
Person.java
package com.androidevreni.jsontutorial.models;
import com.google.gson.annotations.SerializedName;
/**
* Created by mustafademir on 17.06.2016.
*/
public class Person {
@SerializedName("id")
public String name;
@SerializedName("atur")
public String city;
@SerializedName("icerik")
public String country;
@SerializedName("renk")
public String renk;
public Person(String name, String city, String country, String renk) {
//this.name = name;
this.city = city;
this.country = country;
this.renk = renk;
}
}
MyApplication.java
package com.androidevreni.jsontutorial;
import android.app.Application;
import timber.log.Timber;
/**
* Created by mustafademir on 13.06.2016.
*/
public class MyApplication extends Application {
@Override
public void onCreate() {
super.onCreate();
// TIMBER SETUP
if (BuildConfig.DEBUG) {
Timber.plant(new Timber.DebugTree());
}
}
}
MainApplication.java
package com.androidevreni.jsontutorial;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import com.androidevreni.jsontutorial.adapters.PersonsAdapter;
import com.androidevreni.jsontutorial.models.Person;
import com.google.gson.Gson;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import timber.log.Timber;
public class MainActivity extends AppCompatActivity {
private String JSON_URL = "http://10.0.2.2/database1/api/stock_service.php";
private OkHttpClient client = new OkHttpClient();
private List<Person> personList = new ArrayList<>();
private RecyclerView recyclerView;
private PersonsAdapter personsAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Timber.i("onCreate ..");
// JSON DATAYI İNDİR
new DownloadJSON().execute();
// RECYCLERVIEW
recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
personsAdapter = new PersonsAdapter(personList);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setAdapter(personsAdapter);
}
/**
* OkHttp İLE ADRESTEKİ VERİYİ İNDİREN METODUMUZ
*
* @param url
* @return
* @throws IOException
*/
private String run(String url) throws IOException {
Timber.i("run ..");
Request request = new Request.Builder()
.url(url)
.build();
Response response = client.newCall(request).execute();
return response.body().string();
}
/**
* JSON DATAYI ARKAPLANDA İNDİRMEMİZİ SAĞLAYACAK DownloadJSON ASYCTASK SINIFIMIZ
*/
private class DownloadJSON extends AsyncTask<String, Void, String> {
@Override
protected void onPreExecute() {
Timber.i("onPreExecute ..");
}
@Override
protected String doInBackground(String... params) {
Timber.i("doInBackground ..");
// İNDİRME İŞİNİ BURADA YAPACAĞIZ
String jsonData = null;
try {
jsonData = run(JSON_URL);
Timber.i("JSON VERİMİZ : > " + jsonData);
} catch (IOException e) {
e.printStackTrace();
}
// JSON VERİYİ NULL DEĞİLSE JAVA NESNELERİNE DÖNÜŞTÜR
if (null != jsonData) {
Timber.i("jsonData null değil ..");
// VERİYİ GSON İLE NESNELERE DÖNÜŞTÜR
Gson gson = new Gson();
List<Person> persons = new ArrayList<Person>();
persons = Arrays.asList(gson.fromJson(jsonData, Person[].class));
// LİSTEYİ KONTROL AMAÇLI LOGCAT E YAZDIR & LİSTEYE AİT DİZİYE ELEMANLARI EKLE
for (int i = 0; i < persons.size(); i++) {
Timber.i("name #" + i + " : > " + persons.get(i).name);
Timber.i("city #" + i + " : > " + persons.get(i).city);
Timber.i("country #" + i + " : > " + persons.get(i).country);
Timber.i("renk #" + i + " : > " + persons.get(i).renk);
personList.add(persons.get(i));
}
}
return null;
}
@Override
protected void onPostExecute(String result) {
Timber.i("onPostExecute ..");
personsAdapter.notifyDataSetChanged();
}
}
}
list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/list_item_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#F5A384"
android:clickable="true"
android:focusable="true"
android:orientation="vertical"
android:paddingBottom="10dp"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:paddingTop="10dp">
<!-- ANA TÜR -->
<TextView
android:id="@+id/atur"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:textAlignment="center"
android:text="Ana Tür"
android:textColor="#FFFFFF"
android:textSize="20dp"
android:textStyle="bold" />
<!-- RESİM -->
<LinearLayout
android:id="@+id/resimBolum"
android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_below="@+id/atur"
android:gravity="center">
<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
app:srcCompat="@drawable/resim1" />
</LinearLayout>
<!-- İÇERİK -->
<TextView
android:id="@+id/icerik"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/resimBolum"
android:text="ülke"
android:textAlignment="center"
android:textColor="#FFFFFF"
android:textSize="18dp"
android:textStyle="bold"
android:layout_marginTop="10dp"/>
</RelativeLayout>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.androidevreni.jsontutorial.MainActivity">
<!-- LİSTEMİZ -->
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="vertical" />
</RelativeLayout>
Aldığım hata bu;
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.androidevreni.jsontutorial, PID: 8245
java.lang.NullPointerException: Attempt to invoke virtual method 'char java.lang.String.charAt(int)' on a null object reference
at android.graphics.Color.parseColor(Color.java:1384)
at com.androidevreni.jsontutorial.adapters.PersonsAdapter.onBindViewHolder(PersonsAdapter.java:55)
at com.androidevreni.jsontutorial.adapters.PersonsAdapter.onBindViewHolder(PersonsAdapter.java:20)
at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:5471)
at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:5504)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4741)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4617)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1994)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1390)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1353)
at android.support.v7.widget.LinearLayoutManager.scrollBy(LinearLayoutManager.java:1180)
at android.support.v7.widget.LinearLayoutManager.scrollVerticallyBy(LinearLayoutManager.java:1031)
at android.support.v7.widget.RecyclerView.scrollByInternal(RecyclerView.java:1529)
at android.support.v7.widget.RecyclerView.onTouchEvent(RecyclerView.java:2486)
at android.view.View.dispatchTouchEvent(View.java:11776)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2962)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2643)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:448)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1829)
at android.app.Activity.dispatchTouchEvent(Activity.java:3307)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:60)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:410)
at android.view.View.dispatchPointerEvent(View.java:12015)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4795)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4609)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4166)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4293)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4174)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4350)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4166)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4174)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
06-29 17:56:38.437 8245-8245/com.androidevreni.jsontutorial E/AndroidRuntime: at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6661)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6635)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6596)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6764)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:186)
at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method)
at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:177)
at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:6735)
at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:6787)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
at android.view.Choreographer.doCallbacks(Choreographer.java:723)
at android.view.Choreographer.doFrame(Choreographer.java:652)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
