LO53-PositioningApplication-BBPS / LO53-PositioningApp

Commit 0d01d62f115ca0201f50a0c149435575ccd03371

Authored by florian staine
1 parent c30d084a

Periodic HTTP request 

Send an HTTP request every second and update the view according to the response
Showing 4 changed files with 63 additions and 0 deletions   Show diff stats
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app/build.gradle
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... ... @@ -30,5 +30,6 @@ dependencies {
30 30 compile 'com.android.support:design:25.3.1'
31 31 compile 'com.android.support:support-v4:25.3.1'
32 32 compile 'com.android.support:support-vector-drawable:25.3.1'
  33 + compile 'com.android.volley:volley:1.0.0'
33 34 testCompile 'junit:junit:4.12'
34 35 }
... ...
app/src/main/AndroidManifest.xml
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... ... @@ -2,6 +2,7 @@
2 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
3 3 package="fr.utbm.lo53.p2017.positionningapp">
4 4  
  5 + <uses-permission android:name="android.permission.INTERNET" />
5 6 <application
6 7 android:allowBackup="true"
7 8 android:icon="@mipmap/ic_launcher"
... ...
app/src/main/java/fr/utbm/lo53/p2017/positionningapp/PositioningActivity.java
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1 1 package fr.utbm.lo53.p2017.positionningapp;
2 2  
3 3 import android.os.Bundle;
  4 +import android.os.Handler;
4 5 import android.support.constraint.ConstraintLayout;
5 6 import android.support.v7.widget.Toolbar;
  7 +import android.util.Log;
6 8 import android.view.Menu;
7 9 import android.view.MenuItem;
8 10 import android.view.View;
... ... @@ -10,14 +12,55 @@ import android.view.animation.AccelerateInterpolator;
10 12 import android.view.animation.AlphaAnimation;
11 13 import android.view.animation.Animation;
12 14 import android.widget.ImageView;
  15 +import android.widget.TextView;
  16 +
  17 +import com.android.volley.Request;
  18 +import com.android.volley.RequestQueue;
  19 +import com.android.volley.Response;
  20 +import com.android.volley.VolleyError;
  21 +import com.android.volley.toolbox.StringRequest;
  22 +import com.android.volley.toolbox.Volley;
13 23  
14 24 public class PositioningActivity extends BaseActivity {
15 25  
16 26 private static final String TAG = "PositioningActivity";
17 27  
18 28 private ConstraintLayout start_layout;
  29 + private TextView textView;
  30 +
19 31 private Animation hideAnimation;
20 32  
  33 + // Instantiate the RequestQueue.
  34 + private RequestQueue queue;
  35 +
  36 + private String url = "http://www.google.com";
  37 +
  38 + // Request a string response from the provided URL.
  39 + private StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
  40 + new Response.Listener<String>() {
  41 + @Override
  42 + public void onResponse(String response) {
  43 + // Display the first 500 characters of the response string.
  44 + textView.setText("Response is: "+ response.substring(0,500));
  45 + }
  46 + }, new Response.ErrorListener() {
  47 + @Override
  48 + public void onErrorResponse(VolleyError error) {
  49 + Log.d(TAG, error.getCause().toString());
  50 + textView.clearComposingText();
  51 + }
  52 + });
  53 +
  54 + private final Handler handler = new Handler();
  55 + private final Runnable runnable = new Runnable() {
  56 + @Override
  57 + public void run() {
  58 + // Add the request to the RequestQueue.
  59 + queue.add(stringRequest);
  60 + handler.postDelayed(this, 1000);
  61 + }
  62 + };
  63 +
21 64 @Override
22 65 protected void onCreate(Bundle savedInstanceState) {
23 66 super.onCreate(savedInstanceState);
... ... @@ -27,6 +70,16 @@ public class PositioningActivity extends BaseActivity {
27 70  
28 71 start_layout = (ConstraintLayout) findViewById(R.id.start_layout);
29 72 hideAnimation = createFadeOutAndHideAnimation();
  73 +
  74 + textView = (TextView) findViewById(R.id.ID_yolo);
  75 +
  76 + queue = Volley.newRequestQueue(this);
  77 + }
  78 +
  79 + @Override
  80 + protected void onDestroy() {
  81 + handler.removeCallbacks(runnable);
  82 + super.onDestroy();
30 83 }
31 84  
32 85 @Override
... ... @@ -39,6 +92,7 @@ public class PositioningActivity extends BaseActivity {
39 92  
40 93 public void startLocating(View v) {
41 94 start_layout.startAnimation(hideAnimation);
  95 + handler.post(runnable);
42 96 }
43 97  
44 98 private Animation createFadeOutAndHideAnimation() {
... ...
app/src/main/res/layout/content_positioning.xml
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... ... @@ -23,6 +23,13 @@
23 23 android:layout_marginStart="8dp"
24 24 android:layout_marginEnd="8dp" />
25 25  
  26 + <TextView
  27 + android:id="@+id/ID_yolo"
  28 + android:layout_width="wrap_content"
  29 + android:layout_height="wrap_content"
  30 + android:text="TextView"
  31 + android:textAppearance="@style/TextAppearance.AppCompat.Medium" />
  32 +
26 33 <android.support.constraint.ConstraintLayout
27 34 android:id="@+id/start_layout"
28 35 android:layout_width="0dp"
... ...