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/*
* Copyright (C) 2020 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.tools.idea.validator.hierarchy;
import com.android.ide.common.rendering.api.LayoutlibCallback;
import android.view.View;
import android.widget.Checkable;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/** Helper for support lib dependencies. */
public class CustomHierarchyHelper {
public static LayoutlibCallback sLayoutlibCallback;
/** Get the class instance from the studio based on the string class name. */
public static Class<?> getClassByName(String className) {
try {
return sLayoutlibCallback.findClass(className);
} catch (ClassNotFoundException ignore) {
}
return null;
}
/** Returns true if the view is of {@link Checkable} instance. False otherwise. */
public static boolean isCheckable(View fromView) {
LayoutlibCallback callback = sLayoutlibCallback;
if (callback == null) {
return false;
}
try {
// This is required as layoutlib does not know the support library such as
// MaterialButton. LayoutlibCallback calls for studio which understands all the maven
// pulled library.
Class<?> button = callback.findClass(
"com.google.android.material.button.MaterialButton");
if (button.isInstance(fromView)) {
Method isCheckable = button.getMethod("isCheckable");
Object toReturn = isCheckable.invoke(fromView);
return (toReturn instanceof Boolean) && ((Boolean) toReturn);
}
Class<?> card = callback.findClass(
"com.google.android.material.card.MaterialCardView");
if (card.isInstance(fromView)) {
Method isCheckable = card.getMethod("isCheckable");
Object toReturn = isCheckable.invoke(fromView);
return (toReturn instanceof Boolean) && ((Boolean) toReturn);
}
Class<?> chip = callback.findClass(
"com.google.android.material.chip.Chip");
if (chip.isInstance(fromView)) {
Method isCheckable = chip.getMethod("isCheckable");
Object toReturn = isCheckable.invoke(fromView);
return (toReturn instanceof Boolean) && ((Boolean) toReturn);
}
} catch (ClassNotFoundException |
NoSuchMethodException |
IllegalAccessException |
InvocationTargetException ignore) {
}
return fromView instanceof Checkable;
}
}
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