Я практикую библиотеку волейбола, но получаю некоторые ошибки.Я пытался с индивидуальным запросом.Это мой основной класс активности:
package in.jimmytrivedi.volleytutorials;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.Cache;
import com.android.volley.Network;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.RetryPolicy;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.BasicNetwork;
import com.android.volley.toolbox.DiskBasedCache;
import com.android.volley.toolbox.HurlStack;
import com.android.volley.toolbox.ImageRequest;
import com.android.volley.toolbox.StringRequest;
public class MainActivity extends AppCompatActivity {
String server_url = "http://192.168.1.192/greetings.php";
String image_server_url = "http://192.168.1.192/jimmytrivedi.jpeg";
private Button getServerData, getServerImage;
private TextView serverResponse;
private ImageView serverImage;
private RequestQueue requestQueue;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getServerData = findViewById(R.id.getServerData);
getServerImage = findViewById(R.id.getServerImage);
serverResponse = findViewById(R.id.serverResponse);
serverImage = findViewById(R.id.serverImage);
/*-----Default New Request Que-----*/
/*getServerData.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final RequestQueue requestQueue = Volley.newRequestQueue(MainActivity.this);
StringRequest stringRequest = new StringRequest(Request.Method.POST, server_url,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
serverResponse.setText(response);
requestQueue.stop();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
serverResponse.setText("Something went wrong");
error.printStackTrace();
requestQueue.stop();
}
});
requestQueue.add(stringRequest);
}
});*/
/*-----Customized Request Que-----*/
Cache cache = new DiskBasedCache(getCacheDir(), 1024 * 1024);
Network network = new BasicNetwork(new HurlStack());
requestQueue = new RequestQueue(cache, network);
requestQueue.start();
getServerData.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
StringRequest stringRequest = new StringRequest(Request.Method.POST, server_url,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
serverResponse.setText(response);
requestQueue.stop();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
serverResponse.setText("Something went wrong");
error.printStackTrace();
requestQueue.stop();
}
});
Singleton.getmInstance(getApplicationContext()).addToRequestQueue(stringRequest);
}
});
getServerImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ImageRequest imageRequest = new ImageRequest(image_server_url,
new Response.Listener<Bitmap>() {
@Override
public void onResponse(Bitmap response) {
serverImage.setImageBitmap(response);
}
}, 0, 0, ImageView.ScaleType.CENTER, null,
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(MainActivity.this,"Something went wrong",Toast.LENGTH_SHORT).show();
error.printStackTrace();
requestQueue.stop();
}
});
Singleton.getmInstance(getApplicationContext()).addToRequestQueue(imageRequest);
}
});
}
}
Это мой класс Singleton:
package in.jimmytrivedi.volleytutorials;
import android.content.Context;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.Volley;
public class Singleton {
private static Singleton mInstance;
private RequestQueue requestQueue;
private Context context;
private Singleton(Context ctx) {
context = ctx;
requestQueue = getRequestQueue();
}
public RequestQueue getRequestQueue() {
if(requestQueue==null) {
requestQueue = Volley.newRequestQueue(context.getApplicationContext());
}
return requestQueue;
}
public static synchronized Singleton getmInstance(Context context) {
if(mInstance==null) {
mInstance = new Singleton(context);
}
return mInstance;
}
public<T> void addToRequestQueue(Request<T> request) {
requestQueue.add(request);
}
}
Это Activity_main.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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="@+id/getServerImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/getServerData"
android:layout_centerHorizontal="true"
android:layout_marginTop="-230dp"
android:text="Get Server Image" />
<TextView
android:id="@+id/serverResponse"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="163dp"
android:text="Server Response"
android:textSize="30dp"
tools:layout_editor_absoluteX="155dp"
tools:layout_editor_absoluteY="44dp" />
<Button
android:id="@+id/getServerData"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="230dp"
android:text="Get Server Data" />
<ImageView
android:id="@+id/serverImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="78dp"/>
</RelativeLayout>
И это ошибка, показапуск приложения:
09-20 20:39:22.619 22972-22972/in.jimmytrivedi.volleytutorials I/art: at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:426)
at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:377)
at android.view.ViewGroup android.support.v7.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:607)
at void android.support.v7.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:518)
at void android.support.v7.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:466)
at void android.support.v7.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140)
at void in.jimmytrivedi.volleytutorials.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:37)
at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6729)
При нажатии любой из кнопок:
`09-20 20:40:45.054 22972-23148/in.jimmytrivedi.volleytutorials W/System: ClassLoader referenc`ed unknown path: /system/framework/tcmclient.jar
09-20 20:40:45.057 22972-23148/in.jimmytrivedi.volleytutorials D/NetworkSecurityConfig: No Network Security Config specified, using platform default
09-20 20:40:52.618 22972-22972/in.jimmytrivedi.volleytutorials W/System.err: com.android.volley.TimeoutError
at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:173)
09-20 20:40:52.619 22972-22972/in.jimmytrivedi.volleytutorials W/System.err: at com.android.volley.NetworkDispatcher.processRequest(NetworkDispatcher.java:131)
at com.android.volley.NetworkDispatcher.processRequest(NetworkDispatcher.java:111)
at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:90)
Мой сервер Internet и Xampp работает нормально, а также работает 2-х строчный URL.Я тестирую на реальном устройстве.Также могу ли я использовать синглтон-класс для stringrequest и imagerequest?