Port launcher to SDL2 bootstrap

doc/source/launcher.rst

@@ -20,25 +20,23 @@ python-for-android.
 Building
 --------
 
-The Kivy Launcher is built using python-for-android, and is currently
-only supported by the pygame bootstrap (there is no SDL2 launcher
-yet). To get the most recent versions of packages you need to clean
-them first, so that the packager won't grab an old package instead of
-fresh one.
+The Kivy Launcher is built using python-for-android. To get the most recent
+versions of packages you need to clean them first, so that the packager won't
+grab an old (cached) package instead of fresh one.
 
 .. highlight:: none
 
 ::
 
-    p4a clean_dists
-    p4a clean_builds
+    p4a clean_download_cache requirements
+    p4a clean_dists && p4a clean_builds
     p4a apk --requirements=requirements \
             --permission PERMISSION \
             --package=the.package.name \
             --name="App name" \
             --version=x.y.z \
             --android_api XY \
-            --bootstrap=pygame \
+            --bootstrap=pygame or sdl2 \
             --launcher \
             --minsdk 13
 
@@ -80,6 +78,9 @@ to change other settings.
 After you set your `android.txt` file, you can now run the launcher
 and start any available app from the list.
 
+To differentiate between apps in ``/sdcard/kivy`` you can include an icon
+named ``icon.png`` to the folder. The icon should be a square.
+
 Release on the market
 ---------------------
 
@@ -91,10 +92,14 @@ Source code
 -----------
 
 .. |renpy| replace:: pygame org.renpy.android
+.. |kivy| replace:: sdl2 org.kivy.android
 
 .. _renpy:
     https://github.com/kivy/python-for-android/tree/master/\
     pythonforandroid/bootstraps/pygame/build/src/org/renpy/android
+.. _sdl2:
+    https://github.com/kivy/python-for-android/tree/master/\
+    pythonforandroid/bootstraps/sdl2/build/src/org/kivy/android
 
 If you feel confident, feel free to improve the launcher. You can find the
-source code at |renpy|_. 
+source code at |renpy|_ or at |kivy|_.

pythonforandroid/bootstraps/sdl2/build/build.py

@@ -50,7 +50,7 @@
 if PYTHON is not None:
     BLACKLIST_PATTERNS.append('*.py')
 
-WHITELIST_PATTERNS = []
+WHITELIST_PATTERNS = ['pyconfig.h', ]
 
 python_files = []
 
@@ -222,13 +222,15 @@ def make_package(args):
     #     print('Your PATH must include android tools.')
     #     sys.exit(-1)
 
-    if not (exists(join(realpath(args.private), 'main.py')) or
-            exists(join(realpath(args.private), 'main.pyo'))):
-        print('''BUILD FAILURE: No main.py(o) found in your app directory. This
+    # Ignore warning if the launcher is in args
+    if not args.launcher:
+        if not (exists(join(realpath(args.private), 'main.py')) or
+                exists(join(realpath(args.private), 'main.pyo'))):
+            print('''BUILD FAILURE: No main.py(o) found in your app directory. This
 file must exist to act as the entry point for you app. If your app is
 started by a file with a different name, rename it to main.py or add a
 main.py that loads it.''')
-        exit(1)
+            exit(1)
 
     # Delete the old assets.
     if exists('assets/public.mp3'):
@@ -248,8 +250,13 @@ def make_package(args):
         tar_dirs.append('private')
     if exists('crystax_python'):
         tar_dirs.append('crystax_python')
+
     if args.private:
         make_tar('assets/private.mp3', tar_dirs, args.ignore_path)
+    elif args.launcher:
+        # clean 'None's as a result of main.py path absence
+        tar_dirs = [tdir for tdir in tar_dirs if tdir]
+        make_tar('assets/private.mp3', tar_dirs, args.ignore_path)
     # else:
     #     make_tar('assets/private.mp3', ['private'])
 
@@ -267,12 +274,18 @@ def make_package(args):
     #     sys.exit(-1)
 
 
-    # Prepare some variables for templating process
+    # folder name for launcher
+    url_scheme = 'kivy'
 
-    default_icon = 'templates/kivy-icon.png'
+    # Prepare some variables for templating process
+    if args.launcher:
+        default_icon = 'templates/launcher-icon.png'
+        default_presplash = 'templates/launcher-presplash.jpg'
+    else:
+        default_icon = 'templates/kivy-icon.png'
+        default_presplash = 'templates/kivy-presplash.jpg'
     shutil.copy(args.icon or default_icon, 'res/drawable/icon.png')
 
-    default_presplash = 'templates/kivy-presplash.jpg'
     shutil.copy(args.presplash or default_presplash,
                 'res/drawable/presplash.jpg')
 
@@ -312,9 +325,10 @@ def make_package(args):
         args.extra_source_dirs = []
 
     service = False
-    service_main = join(realpath(args.private), 'service', 'main.py')
-    if exists(service_main) or exists(service_main + 'o'):
-        service = True
+    if args.private:
+        service_main = join(realpath(args.private), 'service', 'main.py')
+        if exists(service_main) or exists(service_main + 'o'):
+            service = True
 
     service_names = []
     for sid, spec in enumerate(args.services):
@@ -344,6 +358,7 @@ def make_package(args):
         args=args,
         service=service,
         service_names=service_names,
+        url_scheme=url_scheme,
         )
 
     render(
@@ -355,7 +370,9 @@ def make_package(args):
     render(
         'strings.tmpl.xml',
         'res/values/strings.xml',
-        args=args)
+        args=args,
+        url_scheme=url_scheme,
+        )
 
     render(
         'custom_rules.tmpl.xml',
@@ -391,8 +408,9 @@ def parse_args(args=None):
 ''')
 
     ap.add_argument('--private', dest='private',
-                    help='the dir of user files',
-                    required=True)
+                    help='the dir of user files')
+                    # , required=True) for launcher, crashes in make_package
+                    # if not mentioned (and the check is there anyway)
     ap.add_argument('--package', dest='package',
                     help=('The name of the java package the project will be'
                           ' packaged under.'),
@@ -414,6 +432,9 @@ def parse_args(args=None):
                     help=('The orientation that the game will display in. '
                           'Usually one of "landscape", "portrait" or '
                           '"sensor"'))
+    ap.add_argument('--launcher', dest='launcher', action='store_true',
+                    help=('Provide this argument to build a multi-app '
+                          'launcher, rather than a single app.'))
     ap.add_argument('--icon', dest='icon',
                     help='A png file to use as the icon for the application.')
     ap.add_argument('--permission', dest='permissions', action='append',

pythonforandroid/bootstraps/sdl2/build/res/layout/chooser_item.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+   xmlns:android="http://schemas.android.com/apk/res/android"
+   android:orientation="horizontal"
+   android:gravity="center"
+   >
+
+  <ImageView
+     android:id="@+id/icon"
+     android:layout_width="64sp"
+     android:layout_height="64sp"
+     android:scaleType="fitCenter"
+     android:padding="2sp"
+     />
+
+  <LinearLayout
+     android:orientation="vertical"
+     android:layout_width="fill_parent"
+     android:layout_height="wrap_content"
+     >
+
+    <TextView
+       android:layout_width="wrap_content"
+       android:layout_height="wrap_content"
+       android:id="@+id/title"
+       android:textSize="18sp"
+       android:textColor="#fff"
+       android:singleLine="true"
+       />
+
+    <TextView
+       android:layout_width="wrap_content"
+       android:layout_height="wrap_content"
+       android:singleLine="true"
+       android:id="@+id/author"
+       />
+
+  </LinearLayout>
+</LinearLayout>

pythonforandroid/bootstraps/sdl2/build/res/layout/project_chooser.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+   xmlns:android="http://schemas.android.com/apk/res/android"
+   android:orientation="vertical"
+   >
+
+  <TextView
+     android:text="Please choose a project:"
+     android:layout_width="fill_parent"
+     android:layout_height="wrap_content"
+     android:padding="4sp"
+     />
+
+  <ListView
+     android:id="@+id/projectList"
+     android:layout_width="fill_parent"
+     android:layout_height="fill_parent"
+     />
+
+
+</LinearLayout>

pythonforandroid/bootstraps/sdl2/build/res/layout/project_empty.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+   xmlns:android="http://schemas.android.com/apk/res/android"
+   android:orientation="vertical"
+   >
+
+  <TextView
+     android:id="@+id/emptyText"
+     android:layout_width="fill_parent"
+     android:layout_height="wrap_content"
+     android:padding="4sp"
+     />
+
+</LinearLayout>

pythonforandroid/bootstraps/sdl2/build/src/org/kivy/android/Project.java

@@ -0,0 +1,99 @@
+package org.kivy.android;
+
+import java.io.UnsupportedEncodingException;
+import java.io.File;
+import java.io.FileInputStream;
+import java.util.Properties;
+
+import android.util.Log;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+
+
+/**
+ * This represents a project we've scanned for.
+ */
+public class Project {
+
+    String dir = null;
+    String title = null;
+    String author = null;
+    Bitmap icon = null;
+    boolean landscape = false;
+
+    static String decode(String s) {
+        try {
+            return new String(s.getBytes("ISO-8859-1"), "UTF-8");
+        } catch (UnsupportedEncodingException e) {
+            return s;
+        }
+    }
+
+    /**
+     * Scans directory for a android.txt file. If it finds one,
+     * and it looks valid enough, then it creates a new Project,
+     * and returns that. Otherwise, returns null.
+     */
+    public static Project scanDirectory(File dir) {
+
+        // We might have a link file.
+        if (dir.getAbsolutePath().endsWith(".link")) {
+            try {
+
+                // Scan the android.txt file.
+                File propfile = new File(dir, "android.txt");
+                FileInputStream in = new FileInputStream(propfile);
+                Properties p = new Properties();
+                p.load(in);
+                in.close();
+
+                String directory = p.getProperty("directory", null);
+
+                if (directory == null) {
+                    return null;
+                }
+
+                dir = new File(directory);
+
+            } catch (Exception e) {
+                Log.i("Project", "Couldn't open link file " + dir, e);
+            }
+        }
+
+        // Make sure we're dealing with a directory.
+        if (! dir.isDirectory()) {
+            return null;
+        }
+
+        try {
+
+            // Scan the android.txt file.
+            File propfile = new File(dir, "android.txt");
+            FileInputStream in = new FileInputStream(propfile);
+            Properties p = new Properties();
+            p.load(in);
+            in.close();
+
+            // Get the various properties.
+            String title = decode(p.getProperty("title", "Untitled"));
+            String author = decode(p.getProperty("author", ""));
+            boolean landscape = p.getProperty("orientation", "portrait").equals("landscape");
+
+            // Create the project object.
+            Project rv = new Project();
+            rv.title = title;
+            rv.author = author;
+            rv.icon = BitmapFactory.decodeFile(new File(dir, "icon.png").getAbsolutePath());
+            rv.landscape = landscape;
+            rv.dir = dir.getAbsolutePath();
+
+            return rv;
+
+        } catch (Exception e) {
+            Log.i("Project", "Couldn't open android.txt", e);
+        }
+
+        return null;
+
+    }
+}