Add first start screen

app/src/main/java/org/traccar/manager/MainActivity.java

@@ -18,13 +18,23 @@ package org.traccar.manager;
 
 import android.app.Activity;
 import android.os.Bundle;
+import android.preference.PreferenceManager;
 
 public class MainActivity extends Activity {
 
+    public static final String PREFERENCE_URL = "url";
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        String url = PreferenceManager.getDefaultSharedPreferences(this).getString(PREFERENCE_URL, null);
+        if (url != null) {
+            getFragmentManager().beginTransaction().add(android.R.id.content, new MainFragment()).commit();
+        } else {
+            getFragmentManager().beginTransaction().add(android.R.id.content, new StartFragment()).commit();
+        }
     }
 
 }

app/src/main/java/org/traccar/manager/MainFragment.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.traccar.manager;
+
+import android.content.pm.ApplicationInfo;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.webkit.WebSettings;
+import android.webkit.WebView;
+import android.webkit.WebViewFragment;
+
+public class MainFragment extends WebViewFragment {
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        if ((getActivity().getApplicationInfo().flags &= ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+                WebView.setWebContentsDebuggingEnabled(true);
+            }
+        }
+
+        WebSettings webSettings = getWebView().getSettings();
+        webSettings.setJavaScriptEnabled(true);
+        webSettings.setDomStorageEnabled(true);
+        webSettings.setDatabaseEnabled(true);
+
+        getWebView().loadUrl("http://10.0.2.2:8082");
+    }
+
+}

app/src/main/java/org/traccar/manager/StartFragment.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.traccar.manager;
+
+import android.app.Fragment;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+public class StartFragment extends Fragment {
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_start, container, false);
+        return view;
+    }
+
+}

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

@@ -0,0 +1,59 @@
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="@dimen/spacing_normal"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/label_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="@dimen/spacing_normal"
+        android:textAppearance="?android:textAppearanceLarge"
+        android:text="@string/app_name" />
+
+    <TextView
+        android:id="@+id/label_server"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignBaseline="@+id/field_server"
+        android:textAppearance="?android:textAppearanceMedium"
+        android:text="@string/label_server" />
+
+    <EditText
+        android:id="@+id/field_server"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/label_name"
+        android:layout_toEndOf="@+id/label_server"
+        android:layout_toRightOf="@+id/label_server"
+        android:layout_marginTop="@dimen/spacing_normal"
+        android:layout_marginStart="@dimen/spacing_normal"
+        android:layout_marginLeft="@dimen/spacing_normal"
+        android:text="http://demo.traccar.org" />
+
+    <TextView
+        android:id="@+id/label_info"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/field_server"
+        android:layout_marginTop="@dimen/spacing_normal"
+        android:gravity="center_horizontal"
+        android:text="@string/label_info" />
+
+    <Button
+        android:id="@+id/button_start"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/label_info"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="@dimen/spacing_normal"
+        android:paddingStart="@dimen/spacing_normal"
+        android:paddingLeft="@dimen/spacing_normal"
+        android:paddingEnd="@dimen/spacing_normal"
+        android:paddingRight="@dimen/spacing_normal"
+        android:text="@string/button_start" />
+
+</RelativeLayout>

app/src/main/res/values-v21/styles.xml

@@ -0,0 +1,4 @@
+<resources>
+    <style name="AppTheme" parent="android:Theme.Material.Light.NoActionBar">
+    </style>
+</resources>

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

@@ -0,0 +1,3 @@
+<resources>
+    <dimen name="spacing_normal">16dp</dimen>
+</resources>

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

@@ -1,3 +1,6 @@
 <resources>
     <string name="app_name">Traccar Manager</string>
+    <string name="label_server">Server</string>
+    <string name="label_info">This screen will be shown only once. After you click the button, server address will be saved in preferences. To change it, clear app data from application manager.</string>
+    <string name="button_start">Start</string>
 </resources>

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

@@ -1,6 +1,4 @@
 <resources>
-
+    <style name="AppTheme" parent="android:Theme.Holo.Light.NoActionBar">
-    <style name="AppTheme" parent="android:Theme.Light.NoTitleBar">
     </style>
-
 </resources>