Android: Say hello to gradle!

Add build.gradle script, move Android template files to another folder.
These files are specific to every project, and they should be copied to
then project android folder.

Switching from Ant to Gradle brings lots of advantages:
 - it is way faster when rebuilding (25-50% faster than ant).
 - it enables first class Android Studio integration.
 - adding Android Extras libs (e.g. Google Play services, OBB, etc.) to
   your project is now painless.

[ChangeLog][Android] Added Gradle support to build the APK.

Change-Id: I9c8cb355118c9ac1997270c8b80916eca43fce4d
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>

4 files changed, 157 insertions, 0 deletions

diff --git a/src/android/templates/AndroidManifest.xml b/src/android/templates/AndroidManifest.xml
new file mode 100644
index 0000000000..60c612976f
--- /dev/null
+++ b/src/android/templates/AndroidManifest.xml
@@ -0,0 +1,60 @@
+<?xml version='1.0' encoding='utf-8'?>
+<manifest package="org.qtproject.example" xmlns:android="http://schemas.android.com/apk/res/android" android:versionName="1.0" android:versionCode="1" android:installLocation="auto">
+    <application android:hardwareAccelerated="true" android:name="org.qtproject.qt5.android.bindings.QtApplication" android:label="-- %%INSERT_APP_NAME%% --">
+        <activity android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|locale|fontScale|keyboard|keyboardHidden|navigation"
+                  android:name="org.qtproject.qt5.android.bindings.QtActivity"
+                  android:label="-- %%INSERT_APP_NAME%% --"
+                  android:screenOrientation="unspecified"
+                  android:launchMode="singleTop">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+            <meta-data android:name="android.app.lib_name" android:value="-- %%INSERT_APP_LIB_NAME%% --"/>
+            <meta-data android:name="android.app.qt_sources_resource_id" android:resource="@array/qt_sources"/>
+            <meta-data android:name="android.app.repository" android:value="default"/>
+            <meta-data android:name="android.app.qt_libs_resource_id" android:resource="@array/qt_libs"/>
+            <meta-data android:name="android.app.bundled_libs_resource_id" android:resource="@array/bundled_libs"/>
+            <!-- Deploy Qt libs as part of package -->
+            <meta-data android:name="android.app.bundle_local_qt_libs" android:value="-- %%BUNDLE_LOCAL_QT_LIBS%% --"/>
+            <meta-data android:name="android.app.bundled_in_lib_resource_id" android:resource="@array/bundled_in_lib"/>
+            <meta-data android:name="android.app.bundled_in_assets_resource_id" android:resource="@array/bundled_in_assets"/>
+            <!-- Run with local libs -->
+            <meta-data android:name="android.app.use_local_qt_libs" android:value="-- %%USE_LOCAL_QT_LIBS%% --"/>
+            <meta-data android:name="android.app.libs_prefix" android:value="/data/local/tmp/qt/"/>
+            <meta-data android:name="android.app.load_local_libs" android:value="-- %%INSERT_LOCAL_LIBS%% --"/>
+            <meta-data android:name="android.app.load_local_jars" android:value="-- %%INSERT_LOCAL_JARS%% --"/>
+            <meta-data android:name="android.app.static_init_classes" android:value="-- %%INSERT_INIT_CLASSES%% --"/>
+            <!--  Messages maps -->
+            <meta-data android:value="@string/ministro_not_found_msg" android:name="android.app.ministro_not_found_msg"/>
+            <meta-data android:value="@string/ministro_needed_msg" android:name="android.app.ministro_needed_msg"/>
+            <meta-data android:value="@string/fatal_error_msg" android:name="android.app.fatal_error_msg"/>
+            <!--  Messages maps -->
+
+            <!-- Splash screen -->
+            <!--
+            <meta-data android:name="android.app.splash_screen_drawable" android:resource="@drawable/logo"/>
+            -->
+            <!-- Splash screen -->
+
+            <!-- Background running -->
+            <!-- Warning: changing this value to true may cause unexpected crashes if the
+                          application still try to draw after
+                          "applicationStateChanged(Qt::ApplicationSuspended)"
+                          signal is sent! -->
+            <meta-data android:name="android.app.background_running" android:value="false"/>
+            <!-- Background running -->
+        </activity>
+    </application>
+    <uses-sdk android:minSdkVersion="9" android:targetSdkVersion="14"/>
+    <supports-screens android:largeScreens="true" android:normalScreens="true" android:anyDensity="true" android:smallScreens="true"/>
+
+    <!-- The following comment will be replaced upon deployment with default permissions based on the dependencies of the application.
+         Remove the comment if you do not require these default permissions. -->
+    <!-- %%INSERT_PERMISSIONS -->
+
+    <!-- The following comment will be replaced upon deployment with default features based on the dependencies of the application.
+         Remove the comment if you do not require these default features. -->
+    <!-- %%INSERT_FEATURES -->
+
+</manifest>
diff --git a/src/android/templates/build.gradle b/src/android/templates/build.gradle
new file mode 100644
index 0000000000..d1ff362269
--- /dev/null
+++ b/src/android/templates/build.gradle
@@ -0,0 +1,51 @@
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:0.12.1'
+    }
+}
+
+apply plugin: 'android'
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+}
+
+android {
+    /*******************************************************
+     * The following variables:
+     * - androidBuildToolsVersion,
+     * - androidCompileSdkVersion
+     * - qt5AndroidDir - holds the path to qt android files
+     *                   needed to build any Qt application
+     *                   on Android.
+     *
+     * are defined in gradle.properties file. This file is
+     * updated by QtCreator and androiddeployqt tools.
+     * Changing them manually might break the compilation!
+     *******************************************************/
+
+    compileSdkVersion androidCompileSdkVersion.toInteger()
+
+    buildToolsVersion androidBuildToolsVersion
+
+    sourceSets {
+        main {
+            manifest.srcFile 'AndroidManifest.xml'
+            java.srcDirs = [qt5AndroidDir + '/src', 'src', 'java']
+            aidl.srcDirs = [qt5AndroidDir + '/src', 'src', 'aidl']
+            res.srcDirs = [qt5AndroidDir + '/res', 'res']
+            resources.srcDirs = ['src']
+            renderscript.srcDirs = ['src']
+            assets.srcDirs = ['assets']
+            jniLibs.srcDirs = ['libs']
+       }
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+}
diff --git a/src/android/templates/res/values/libs.xml b/src/android/templates/res/values/libs.xml
new file mode 100644
index 0000000000..664ab0abec
--- /dev/null
+++ b/src/android/templates/res/values/libs.xml
@@ -0,0 +1,25 @@
+<?xml version='1.0' encoding='utf-8'?>
+<resources>
+    <array name="qt_sources">
+        <item>https://download.qt-project.org/ministro/android/qt5/qt-5.3</item>
+    </array>
+
+    <!-- The following is handled automatically by the deployment tool. It should
+         not be edited manually. -->
+
+    <array name="bundled_libs">
+        <!-- %%INSERT_EXTRA_LIBS%% -->
+    </array>
+
+     <array name="qt_libs">
+         <!-- %%INSERT_QT_LIBS%% -->
+     </array>
+
+    <array name="bundled_in_lib">
+        <!-- %%INSERT_BUNDLED_IN_LIB%% -->
+    </array>
+    <array name="bundled_in_assets">
+        <!-- %%INSERT_BUNDLED_IN_ASSETS%% -->
+    </array>
+
+</resources>
diff --git a/src/android/templates/templates.pro b/src/android/templates/templates.pro
new file mode 100644
index 0000000000..684a556c5b
--- /dev/null
+++ b/src/android/templates/templates.pro
@@ -0,0 +1,21 @@
+CONFIG -= qt android_install
+
+templates.files = \
+    $$PWD/AndroidManifest.xml \
+    $$PWD/res
+
+templates.path = $$[QT_INSTALL_PREFIX]/src/android/templates
+
+INSTALLS += templates
+
+!prefix_build:!equals(OUT_PWD, $$PWD) {
+    RETURN = $$escape_expand(\\n\\t)
+    equals(QMAKE_HOST.os, Windows) {
+        RETURN = $$escape_expand(\\r\\n\\t)
+    }
+    OUT_PATH = $$shell_path($$OUT_PWD)
+
+    QMAKE_POST_LINK += \
+        $${QMAKE_COPY} $$shell_path($$PWD/AndroidManifest.xml) $$OUT_PATH $$RETURN \
+        $${QMAKE_COPY_DIR} $$shell_path($$PWD/res) $$OUT_PATH
+}