Update Android SDK required to API level 16

Sylvain

Some API 16 methods are used (InputDevice: getDescriptor(), getVibrator()), so we need to compile at least with SDK API 16. Hence default.properties and project.properties have been modified to use android-16.

There are also some modification to SDLActivity.java not to use getVibrator() if we run under API 16. And not to check to presence of hasVibrator() if we are under API 11.
-some hard-coded constant can be expandend.
- rename a local variable (hasVibrator to hasVibratorService)

android-project/default.properties

@@ -8,4 +8,4 @@
 # project structure.
 
 # Project target.
-target=android-12
+target=android-16

android-project/project.properties

@@ -11,4 +11,4 @@
 #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
 
 # Project target.
-target=android-12
+target=android-16

android-project/src/org/libsdl/app/SDLActivity.java

@@ -355,8 +355,8 @@ public class SDLActivity extends Activity {
         if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN ||
             keyCode == KeyEvent.KEYCODE_VOLUME_UP ||
             keyCode == KeyEvent.KEYCODE_CAMERA ||
-            keyCode == 168 || /* API 11: KeyEvent.KEYCODE_ZOOM_IN */
+            keyCode == KeyEvent.KEYCODE_ZOOM_IN || /* API 11 */
-            keyCode == 169 /* API 11: KeyEvent.KEYCODE_ZOOM_OUT */
+            keyCode == KeyEvent.KEYCODE_ZOOM_OUT /* API 11 */
             ) {
             return false;
         }
@@ -1166,7 +1166,7 @@ public class SDLActivity extends Activity {
                     mapping.put(KeyEvent.KEYCODE_ENTER, button);
                 }
                 if ((buttonFlags[i] & 0x00000002) != 0) {
-                    mapping.put(111, button); /* API 11: KeyEvent.KEYCODE_ESCAPE */
+                    mapping.put(KeyEvent.KEYCODE_ESCAPE, button); /* API 11 */
                 }
             }
             button.setText(buttonTexts[i]);
@@ -1688,7 +1688,7 @@ class DummyEdit extends View implements View.OnKeyListener {
 
         outAttrs.inputType = InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD;
         outAttrs.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI
-                | 33554432 /* API 11: EditorInfo.IME_FLAG_NO_FULLSCREEN */;
+                | EditorInfo.IME_FLAG_NO_FULLSCREEN /* API 11 */;
 
         return ic;
     }
@@ -1996,7 +1996,7 @@ class SDLHapticHandler {
     public void pollHapticDevices() {
 
         final int deviceId_VIBRATOR_SERVICE = 999999;
-        boolean hasVibrator = false;
+        boolean hasVibratorService = false;
 
         int[] deviceIds = InputDevice.getDeviceIds();
         // It helps processing the device ids in reverse order
@@ -2004,7 +2004,9 @@ class SDLHapticHandler {
         // so the first controller seen by SDL matches what the receiver
         // considers to be the first controller
 
-        for(int i=deviceIds.length-1; i>-1; i--) {
+        if (Build.VERSION.SDK_INT >= 16)
+        {
+            for (int i = deviceIds.length-1; i > -1; i--) {
                 SDLHaptic haptic = getHaptic(deviceIds[i]);
                 if (haptic == null) {
                     InputDevice device = InputDevice.getDevice(deviceIds[i]);
@@ -2019,12 +2021,18 @@ class SDLHapticHandler {
                     }
                 }
             }
+        }
 
         /* Check VIBRATOR_SERVICE */
-        {
         Vibrator vib = (Vibrator) SDLActivity.mSingleton.getContext().getSystemService(Context.VIBRATOR_SERVICE);
-           if (vib != null && vib.hasVibrator()) {
+        if (vib != null) {
-              hasVibrator = true;
+            if (Build.VERSION.SDK_INT >= 11) {
+                hasVibratorService = vib.hasVibrator();
+            } else {
+                hasVibratorService = true;
+            }
+
+            if (hasVibratorService) {
                 SDLHaptic haptic = getHaptic(deviceId_VIBRATOR_SERVICE);
                 if (haptic == null) {
                     haptic = new SDLHaptic();
@@ -2046,7 +2054,7 @@ class SDLHapticHandler {
                 if (device_id == deviceIds[j]) break;
             }
 
-            if (device_id == deviceId_VIBRATOR_SERVICE && hasVibrator) {
+            if (device_id == deviceId_VIBRATOR_SERVICE && hasVibratorService) {
                 // don't remove the vibrator if it is still present
             } else if (j == deviceIds.length) {
                 removedDevices.add(device_id);

docs/README-android.md

@@ -10,14 +10,14 @@ The rest of this README covers the old style build process.
  Requirements
 ================================================================================
 
-Android SDK (version 12 or later)
+Android SDK (version 16 or later)
 https://developer.android.com/sdk/index.html
 
 Android NDK r7 or later
 https://developer.android.com/tools/sdk/ndk/index.html
 
 Minimum API level supported by SDL: 10 (Android 2.3.3)
-Joystick support is available for API level >=12 devices.
+Joystick support is available for API level >= 12 devices.
 
 ================================================================================
  How the port works