Added latching buttons

Added latching buttons, buttons which turn on when you press them and off when you press them again.

Source/Android/app/src/main/res/menu/menu_overlay_controls_gc.xml

@@ -10,6 +10,10 @@
         android:id="@+id/menu_emulation_toggle_controls"
         android:title="@string/emulation_toggle_controls"/>
 
+    <item
+        android:id="@+id/menu_emulation_latching_controls"
+        android:title="@string/emulation_latching_controls"/>
+
     <item
         android:id="@+id/menu_emulation_adjust_scale"
         android:title="@string/emulation_control_adjustments"/>

Source/Android/app/src/main/res/menu/menu_overlay_controls_wii.xml

@@ -10,6 +10,10 @@
         android:id="@+id/menu_emulation_toggle_controls"
         android:title="@string/emulation_toggle_controls"/>
 
+    <item
+        android:id="@+id/menu_emulation_latching_controls"
+        android:title="@string/emulation_latching_controls"/>
+
     <item
         android:id="@+id/menu_emulation_adjust_scale"
         android:title="@string/emulation_control_adjustments"/>

Source/Android/app/src/main/res/values/arrays.xml

@@ -400,6 +400,17 @@
         <item>@string/gamepad_c_stick</item>
     </string-array>
 
+    <string-array name="gcpadLatchableButtons">
+        <item>A</item>
+        <item>B</item>
+        <item>X</item>
+        <item>Y</item>
+        <item>Z</item>
+        <item>@string/gamepad_start</item>
+        <item>L</item>
+        <item>R</item>
+    </string-array>
+
     <string-array name="wiimoteButtons">
         <item>A</item>
         <item>B</item>
@@ -411,6 +422,16 @@
         <item>@string/gamepad_d_pad</item>
     </string-array>
 
+    <string-array name="wiimoteLatchableButtons">
+        <item>A</item>
+        <item>B</item>
+        <item>1</item>
+        <item>2</item>
+        <item>+</item>
+        <item>-</item>
+        <item>@string/gamepad_home</item>
+    </string-array>
+
     <string-array name="nunchukButtons">
         <item>A</item>
         <item>B</item>
@@ -425,6 +446,18 @@
         <item>@string/gamepad_nunchuk_stick</item>
     </string-array>
 
+    <string-array name="nunchukLatchableButtons">
+        <item>A</item>
+        <item>B</item>
+        <item>1</item>
+        <item>2</item>
+        <item>+</item>
+        <item>-</item>
+        <item>@string/gamepad_home</item>
+        <item>C</item>
+        <item>Z</item>
+    </string-array>
+
     <string-array name="classicButtons">
         <item>a</item>
         <item>b</item>
@@ -442,6 +475,20 @@
         <item>@string/gamepad_right_stick</item>
     </string-array>
 
+    <string-array name="classicLatchableButtons">
+        <item>a</item>
+        <item>b</item>
+        <item>x</item>
+        <item>y</item>
+        <item>+</item>
+        <item>-</item>
+        <item>@string/gamepad_home</item>
+        <item>L</item>
+        <item>R</item>
+        <item>ZL</item>
+        <item>ZR</item>
+    </string-array>
+
     <string-array name="irModeEntries">
         <item>@string/ir_disabled</item>
         <item>@string/ir_follow</item>

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

@@ -571,6 +571,7 @@ It can efficiently compress both junk data and encrypted Wii data.
     <string name="emulation_edit_layout">Edit Layout</string>
     <string name="emulation_done">Done</string>
     <string name="emulation_toggle_controls">Toggle Controls</string>
+    <string name="emulation_latching_controls">Latching Controls</string>
     <string name="emulation_toggle_all">Toggle All</string>
     <string name="emulation_control_scale">Scale</string>
     <string name="emulation_control_opacity">Opacity</string>