am 2dd67ac0: am 8c6f2081: Merge "Add more helpful exception to design components" into mnc-ub-dev

* commit '2dd67ac062eb7f7a9a83e4f864eb27b15f416f48':
  Add more helpful exception to design components

GitOrigin-RevId=65fb4571ce472e3ea5d654f51025bb84925f5b22

PiperOrigin-RevId: 140549518

src/android/support/design/widget/AppBarLayout.java

@@ -142,6 +142,8 @@ public class AppBarLayout extends LinearLayout {
         super(context, attrs);
         setOrientation(VERTICAL);
 
+        ThemeUtils.checkAppCompatTheme(context);
+
         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppBarLayout,
                 0, R.style.Widget_Design_AppBarLayout);
         mTargetElevation = a.getDimensionPixelSize(R.styleable.AppBarLayout_elevation, 0);

src/android/support/design/widget/CollapsingToolbarLayout.java

@@ -126,6 +126,8 @@ public class CollapsingToolbarLayout extends FrameLayout {
     public CollapsingToolbarLayout(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
 
+        ThemeUtils.checkAppCompatTheme(context);
+
         mCollapsingTextHelper = new CollapsingTextHelper(this);
         mCollapsingTextHelper.setTextSizeInterpolator(AnimationUtils.DECELERATE_INTERPOLATOR);
 

src/android/support/design/widget/CoordinatorLayout.java

@@ -168,6 +168,8 @@ public class CoordinatorLayout extends ViewGroup implements NestedScrollingParen
     public CoordinatorLayout(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
 
+        ThemeUtils.checkAppCompatTheme(context);
+
         final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CoordinatorLayout,
                 defStyleAttr, R.style.Widget_Design_CoordinatorLayout);
         final int keylineArrayRes = a.getResourceId(R.styleable.CoordinatorLayout_keylines, 0);

src/android/support/design/widget/FloatingActionButton.java

@@ -82,6 +82,8 @@ public class FloatingActionButton extends ImageView {
     public FloatingActionButton(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
 
+        ThemeUtils.checkAppCompatTheme(context);
+
         mShadowPadding = new Rect();
 
         TypedArray a = context.obtainStyledAttributes(attrs,

src/android/support/design/widget/NavigationView.java

@@ -95,6 +95,8 @@ public class NavigationView extends ScrimInsetsFrameLayout {
     public NavigationView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
 
+        ThemeUtils.checkAppCompatTheme(context);
+
         // Create the menu
         mMenu = new NavigationMenu(context);
 

src/android/support/design/widget/Snackbar.java

@@ -181,6 +181,8 @@ public final class Snackbar {
         mParent = parent;
         mContext = parent.getContext();
 
+        ThemeUtils.checkAppCompatTheme(mContext);
+
         LayoutInflater inflater = LayoutInflater.from(mContext);
         mView = (SnackbarLayout) inflater.inflate(R.layout.design_layout_snackbar, mParent, false);
     }

src/android/support/design/widget/TabLayout.java

@@ -222,6 +222,8 @@ public class TabLayout extends HorizontalScrollView {
     public TabLayout(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
 
+        ThemeUtils.checkAppCompatTheme(context);
+
         // Disable the Scroll Bar
         setHorizontalScrollBarEnabled(false);
         // Set us to fill the View port

src/android/support/design/widget/TextInputLayout.java

@@ -85,6 +85,8 @@ public class TextInputLayout extends LinearLayout {
         // Can't call through to super(Context, AttributeSet, int) since it doesn't exist on API 10
         super(context, attrs);
 
+        ThemeUtils.checkAppCompatTheme(context);
+
         setOrientation(VERTICAL);
         setWillNotDraw(false);
         setAddStatesFromChildren(true);

src/android/support/design/widget/ThemeUtils.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2015 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 android.support.design.widget;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.support.design.R;
+
+class ThemeUtils {
+
+    private static final int[] APPCOMPAT_CHECK_ATTRS = { R.attr.colorPrimary };
+
+    static void checkAppCompatTheme(Context context) {
+        TypedArray a = context.obtainStyledAttributes(APPCOMPAT_CHECK_ATTRS);
+        final boolean failed = !a.hasValue(0);
+        if (a != null) {
+            a.recycle();
+        }
+        if (failed) {
+            throw new IllegalArgumentException("You need to use a Theme.AppCompat theme "
+                    + "(or descendant) with the design library.");
+        }
+    }
+}