1 files changed, 50 insertions, 0 deletions
diff --git a/WallpaperPicker/src/com/android/launcher3/AlphaDisableableButton.java b/WallpaperPicker/src/com/android/launcher3/AlphaDisableableButton.java
new file mode 100644
index 000000000..f0796c36f
--- /dev/null
+++ b/WallpaperPicker/src/com/android/launcher3/AlphaDisableableButton.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.launcher3;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.Button;
+
+/**
+ * A Button which becomes translucent when it is disabled
+ */
+public class AlphaDisableableButton extends Button {
+    public static float DISABLED_ALPHA_VALUE = 0.4f;
+    public AlphaDisableableButton(Context context) {
+        this(context, null);
+    }
+
+    public AlphaDisableableButton(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public AlphaDisableableButton(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        setLayerType(LAYER_TYPE_HARDWARE, null);
+    }
+
+    @Override
+    public void setEnabled(boolean enabled) {
+        super.setEnabled(enabled);
+        if(enabled) {
+            setAlpha(1.0f);
+        } else {
+            setAlpha(DISABLED_ALPHA_VALUE);
+        }
+    }
+}