android library draw rpute maps

.gitignore

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+*.iml
+.gradle
+/app
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

build.gradle

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+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.2.0'
+        classpath 'com.google.gms:google-services:3.0.0'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

drawroutemap/.gitignore

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+/build

drawroutemap/build.gradle

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+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 24
+    buildToolsVersion "24.0.1"
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion 24
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:24.2.1'
+    testCompile 'junit:junit:4.12'
+    compile 'com.google.android.gms:play-services:9.6.1'
+}

drawroutemap/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/tarGz/Library/Android/sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

drawroutemap/src/androidTest/java/com/ahmadrosid/lib/drawroutemap/ExampleInstrumentedTest.java

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+package com.ahmadrosid.lib.drawroutemap;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.ahmadrosid.lib.drawroutemap.test", appContext.getPackageName());
+    }
+}

drawroutemap/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.ahmadrosid.lib.drawroutemap">
+
+    <application android:allowBackup="true"
+                 android:label="@string/app_name"
+                 android:supportsRtl="true"
+    >
+
+    </application>
+
+</manifest>

drawroutemap/src/main/java/com/ahmadrosid/lib/drawroutemap/DataRouteParser.java

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+package com.ahmadrosid.lib.drawroutemap;
+
+import com.google.android.gms.maps.model.LatLng;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+/**
+ * Created by ocittwo on 11/14/16.
+ *
+ * @Author Ahmad Rosid
+ * @Email [email protected]
+ * @Github https://github.com/ar-android
+ * @Web http://ahmadrosid.com
+ */
+public class DataRouteParser {
+
+    /**
+     * Receives a JSONObject and returns a list of lists containing latitude and longitude
+     */
+    public List<List<HashMap<String, String>>> parse(JSONObject jObject) {
+
+        List<List<HashMap<String, String>>> routes = new ArrayList<>();
+        JSONArray jRoutes;
+        JSONArray jLegs;
+        JSONArray jSteps;
+
+        try {
+
+            jRoutes = jObject.getJSONArray("routes");
+
+            /** Traversing all routes */
+            for (int i = 0; i < jRoutes.length(); i++) {
+                jLegs = ((JSONObject) jRoutes.get(i)).getJSONArray("legs");
+                List path = new ArrayList<>();
+
+                /** Traversing all legs */
+                for (int j = 0; j < jLegs.length(); j++) {
+                    jSteps = ((JSONObject) jLegs.get(j)).getJSONArray("steps");
+
+                    /** Traversing all steps */
+                    for (int k = 0; k < jSteps.length(); k++) {
+                        String polyline = "";
+                        polyline = (String) ((JSONObject) ((JSONObject) jSteps.get(k)).get("polyline")).get("points");
+                        List<LatLng> list = decodePoly(polyline);
+
+                        /** Traversing all points */
+                        for (int l = 0; l < list.size(); l++) {
+                            HashMap<String, String> hm = new HashMap<>();
+                            hm.put("lat", Double.toString((list.get(l)).latitude));
+                            hm.put("lng", Double.toString((list.get(l)).longitude));
+                            path.add(hm);
+                        }
+                    }
+                    routes.add(path);
+                }
+            }
+
+        } catch (JSONException e) {
+            e.printStackTrace();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return routes;
+    }
+
+    /**
+     * Method to decode polyline points
+     * Courtesy : http://jeffreysambells.com/2010/05/27/decoding-polylines-from-google-maps-direction-api-with-java
+     */
+    private List<LatLng> decodePoly(String encoded) {
+
+        List<LatLng> poly = new ArrayList<>();
+        int index = 0, len = encoded.length();
+        int lat = 0, lng = 0;
+
+        while (index < len) {
+            int b, shift = 0, result = 0;
+            do {
+                b = encoded.charAt(index++) - 63;
+                result |= (b & 0x1f) << shift;
+                shift += 5;
+            } while (b >= 0x20);
+            int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
+            lat += dlat;
+
+            shift = 0;
+            result = 0;
+            do {
+                b = encoded.charAt(index++) - 63;
+                result |= (b & 0x1f) << shift;
+                shift += 5;
+            } while (b >= 0x20);
+            int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
+            lng += dlng;
+
+            LatLng p = new LatLng((((double) lat / 1E5)),
+                    (((double) lng / 1E5)));
+            poly.add(p);
+        }
+
+        return poly;
+    }
+}