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app/src/main/java/fr/free/nrw/commons/AboutActivity.java

@@ -1,6 +1,8 @@
 package fr.free.nrw.commons;
 
 import android.annotation.SuppressLint;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
@@ -10,6 +12,9 @@
 import android.support.customtabs.CustomTabsIntent;
 import android.support.v4.content.ContextCompat;
 import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.LinearLayout;
+import android.widget.Spinner;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -29,6 +34,16 @@ public class AboutActivity extends NavigationBaseActivity {
     @BindView(R.id.about_license) HtmlTextView aboutLicenseText;
     @BindView(R.id.about_faq) TextView faqText;
 
+    String language[] = { "Kazakh", "Afrikaans", "Arabic", "Bengali", "Asturianu", "azərbaycanca", "Bikol Central",
+    "Bulgarain", "বাংলা", "Bosanski", "Brezhoneg","català","کوردی", " čeština", " kaszëbsczi", "Cymraeg", "dansk", "Deutsch"
+    ,"Zazaki", "डोटेली","Ελληνικά","euskara","español","فارسی","suomi", "français" ,"Nordfriisk", "galego", "Hawaiʻi"
+    ,"हिन्दी","Hunsrik","עברית","hornjoserbsce","magyar","interlingua","Bahasa Indonesia", "íslenska","Italian","japanese",
+    "Basa Jawa", "ქართული", " ភាសាខ្មែរ","ಕನ್ನಡ", "한국어","къарачай-малкъар","Кыргызча", "latina", "Lëtzebuergesch", "lietuvių",
+    "latviešu", "Malagasy", "македонски"," മലയാളം","монгол","मराठी","Bahasa Melayu","Malti", "नेपाली",  "norsk bokmål",
+    " Nederlands","occitan","ଓଡ଼ିଆ","ਪੰਜਾਬੀ","polsk","Piemontèis","پښتو","português","română","русский"," سنڌي", " සිංහල",
+    "slovenčina"," سرائیکی", "svenska", "தமிழ்", "ತುಳು"," తెలుగు"," ไทย", "Türkçe","українська", "اردو", "Tiếng Việt",
+    " მარგალური","ייִדיש",};
+
     /**
      * This method helps in the creation About screen
      *
@@ -87,8 +102,43 @@ public void launchPrivacyPolicy(View view) {
         Utils.handleWebUrl(this,Uri.parse("https://github.com/commons-app/apps-android-commons/wiki/Privacy-policy\\"));
     }
 
+
     @OnClick(R.id.about_faq)
     public void launchFrequentlyAskedQuesions(View view) {
         Utils.handleWebUrl(this,Uri.parse("https://github.com/commons-app/apps-android-commons/wiki/Frequently-Asked-Questions\\"));
     }
+
+    @OnClick(R.id.about_translate)
+    public void launchTranslate(View view) {
+        final ArrayAdapter<String> languageAdapter = new ArrayAdapter<String>(AboutActivity.this,
+                android.R.layout.simple_spinner_item, language);
+        final Spinner spinner = new Spinner(AboutActivity.this);
+        spinner.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
+        spinner.setAdapter(languageAdapter);
+        spinner.setGravity(17);
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(AboutActivity.this);
+        builder.setView(spinner);
+        builder.setTitle(R.string.about_translate_title)
+                .setMessage(R.string.about_translate_message)
+                .setPositiveButton(R.string.about_translate_proceed, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        String languageSelected = spinner.getSelectedItem().toString();
+                        TokensTranslations tokensTranslations = new TokensTranslations();
+                        tokensTranslations.initailize();
+                        String token = tokensTranslations.getTranslationToken(languageSelected);
+                        Utils.handleWebUrl(AboutActivity.this,Uri.parse("https://translatewiki.net/w/i.php?title=Special:Translate&language="+token+"&group=commons-android-strings&filter=%21translated&action=translate ?"));
+                    }
+                });
+        builder.setNegativeButton(R.string.about_translate_cancel, new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                finish();
+            }
+        });
+        builder.create().show();
+
+    }
+
 }

app/src/main/java/fr/free/nrw/commons/TokensTranslations.java

@@ -0,0 +1,105 @@
+package fr.free.nrw.commons;
+
+import java.util.HashMap;
+
+/**
+ * Created by Dell on 3/16/2018.
+ */
+
+public class TokensTranslations {
+     HashMap<String,String> translationToken = new HashMap<String,String>();
+
+      public void initailize() {
+        translationToken.put("Kazakh", "ab");
+        translationToken.put("Afrikaans", "af");
+        translationToken.put("Arabic", "ar");
+        translationToken.put("Bengali", "as");
+        translationToken.put("Asturianu", "ast");
+        translationToken.put("azərbaycanca", "az");
+        translationToken.put("Bikol Central", "bcl");
+        translationToken.put("Bulgarain","bg");
+        translationToken.put("বাংলা", "bn");
+        translationToken.put("Brezhoneg", "br");
+        translationToken.put("Bosanski", "bs");
+        translationToken.put("català", "ca");
+        translationToken.put("کوردی","ckb");
+        translationToken.put("čeština", "cs");
+        translationToken.put("kaszëbsczi", "csb");
+        translationToken.put("Cymraeg", "cy");
+        translationToken.put("dansk", "da");
+        translationToken.put("Deutsch", "de");
+        translationToken.put("Zazaki", "diq");
+        translationToken.put("डोटेली","diq");
+        translationToken.put("Ελληνικά","el");
+        translationToken.put("euskara","eu");
+        translationToken.put("español", "es");
+        translationToken.put("فارسی","fa");
+        translationToken.put("suomi", "fi");
+        translationToken.put("føroyskt", "fo");
+        translationToken.put("français", "fr");
+        translationToken.put("Nordfriisk", "frr");
+        translationToken.put("galego", "gr");
+        translationToken.put("Hawaiʻi", "haw");
+        translationToken.put("עברית","he");
+        translationToken.put("हिन्दी","hi");
+        translationToken.put("Hunsrik", "hrx");
+        translationToken.put("hornjoserbsce", "hsb");
+        translationToken.put("magyar","hu");
+        translationToken.put("interlingua","ia");
+        translationToken.put("Bahasa Indonesia", "id");
+        translationToken.put("íslenska","is");
+        translationToken.put("Italian","it");
+        translationToken.put("japanese","ja");
+        translationToken.put("Basa Jawa","jv");
+        translationToken.put("ქართული", "ka");
+        translationToken.put("Taqbaylit","kab");
+        translationToken.put(" ភាសាខ្មែរ","km");
+        translationToken.put("ಕನ್ನಡ", "kn");
+        translationToken.put("한국어", "ko");
+        translationToken.put("къарачай-малкъар","krc");
+        translationToken.put("Кыргызча","ky");
+        translationToken.put("latina","la");
+        translationToken.put("Lëtzebuergesch","lb");
+        translationToken.put("lietuvių", "lt");
+        translationToken.put("latviešu","lv");
+        translationToken.put("Malagasy","mg");
+        translationToken.put("македонски", "mk");
+        translationToken.put("മലയാളം","ml");
+        translationToken.put("монгол","mn");
+        translationToken.put("मराठी","mr");
+        translationToken.put("Bahasa Melayu","ms");
+        translationToken.put("Malti","mt");
+        translationToken.put("norsk bokmål", "nb");
+        translationToken.put("नेपाली","ne");
+        translationToken.put("Nederlands","nl");
+        translationToken.put("occitan","oc");
+        translationToken.put("ଓଡ଼ିଆ","or");
+        translationToken.put("ਪੰਜਾਬੀ","pa");
+        translationToken.put("polsk", "pl");
+        translationToken.put("Piemontèis","pms");
+        translationToken.put("پښتو","ps");
+        translationToken.put("português","pt");
+        translationToken.put("română","ro");
+        translationToken.put("русский","ru");
+        translationToken.put(" سنڌي","sd");
+        translationToken.put(" සිංහල","si");
+        translationToken.put("slovenčina","sk");
+        translationToken.put(" سرائیکی","skr");
+        translationToken.put("Basa Sunda","su");
+        translationToken.put("svenska","sv");
+        translationToken.put("தமிழ்", "ta");
+        translationToken.put("ತುಳು", "tcy");
+        translationToken.put(" తెలుగు","te");
+        translationToken.put(" ไทย","th");
+        translationToken.put("Türkçe","tr");
+        translationToken.put("українська","uk");
+        translationToken.put("اردو","ur");
+        translationToken.put("Tiếng Việt","vi");
+        translationToken.put(" მარგალური", "xmf");
+        translationToken.put("ייִדיש","yi");
+    }
+
+    public String getTranslationToken ( String language){
+        return translationToken.get(language);
+    }
+}

app/src/main/res/layout/activity_about.xml

@@ -123,6 +123,16 @@
                 android:gravity="center"
                 android:text="@string/about_privacy_policy" />
 
+            <TextView
+                android:id="@+id/about_translate"
+                style="?android:textAppearanceSmall"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textColor="@color/primaryColor"
+                android:layout_marginTop="@dimen/standard_gap"
+                android:gravity="center"
+                android:text="@string/about_translate" />
+
             <TextView
                 android:id="@+id/about_credits"
                 style="?android:textAppearanceSmall"

app/src/main/res/values/strings.xml

@@ -245,4 +245,10 @@
   <string name="about_rate_us"><u>Rate Us</u></string>
   <string name="about_faq">Frequently Asked Questions</string>
   <string name="welcome_skip_button">Skip Tutorial</string>
+  <string name="about_translate"><u>Translate</u></string>
+    <string name="about_translate_title">Languages</string>
+  <string name="about_translate_message">Select the langauge you want translations for ?</string>
+  <string name="about_translate_proceed">Proceed</string>
+  <string name="about_translate_cancel">Cancel</string>
+
 </resources>