Added support for non-touch screens

Added support for non-touch screens so that they can dismiss tooltips either by pressing the DPAD_CENTER button, or the ENTER button. This is in addition to the BACK button that works by default. This all works only if the tooltip is set to be focusable, so on non-touch devices, we set the tooltip focusable by default.

Author: lionscribe

library/src/main/java/io/github/douglasjunior/androidSimpleTooltip/SimpleTooltip.java

@@ -30,6 +30,7 @@
 import android.animation.ObjectAnimator;
 import android.annotation.TargetApi;
 import android.content.Context;
+import android.content.pm.PackageManager;
 import android.graphics.Color;
 import android.graphics.PointF;
 import android.graphics.RectF;
@@ -38,6 +39,7 @@
 import android.os.Build;
 import android.util.Log;
 import android.view.Gravity;
+import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
@@ -316,6 +318,24 @@ private void configContentView() {
 
         mContentLayout = linearLayout;
         mContentLayout.setVisibility(View.INVISIBLE);
+
+        if (mFocusable)
+        {
+            mContentLayout.setFocusableInTouchMode(true);
+            mContentLayout.setOnKeyListener(new View.OnKeyListener()
+            {
+                @Override
+                public boolean onKey(View v, int keyCode, KeyEvent event)
+                {
+                    if ((keyCode == KeyEvent.KEYCODE_ENTER || keyCode == KeyEvent.KEYCODE_DPAD_CENTER) && event.getAction() == KeyEvent.ACTION_UP) {
+                        dismiss();
+                        return true;
+                    }
+                    return false;
+                }
+            });
+        }
+
         mPopupWindow.setContentView(mContentLayout);
     }
 
@@ -579,6 +599,7 @@ public static class Builder {
 
         public Builder(Context context) {
             this.context = context;
+            this.focusable = !(context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN));
         }
 
         public SimpleTooltip build() throws IllegalArgumentException {
@@ -1034,8 +1055,8 @@ public Builder onShowListener(OnShowListener onShowListener) {
         }
 
         /**
-         * <div class="pt">Habilita o foco no conteúdo da tooltip. Padrão é <tt>false</tt>.</div>
-         * <div class="en">Enables focus in the tooltip content. Default is <tt>false</tt>.</div>
+         * <div class="pt">Habilita o foco no conteúdo da tooltip. Padrão é <tt>false</tt> em dispositivos sensíveis ao toque e <tt>true</tt> em dispositivos não sensíveis ao toque.</div>
+         * <div class="en">Enables focus in the tooltip content. Default is <tt>false</tt> on touch devices, and <tt>true</tt> on non-touch devices.</div>
          *
          * @param focusable <div class="pt">Pode receber o foco.</div>
          *                  <div class="en">Can receive focus.</div>