Java tutorial
/* * 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 android.support.v7.widget; import android.annotation.TargetApi; import android.content.Context; import android.content.res.ColorStateList; import android.graphics.PorterDuff; import android.graphics.drawable.Drawable; import android.support.annotation.DrawableRes; import android.support.annotation.Nullable; import android.support.v4.view.TintableBackgroundView; import android.support.v7.content.res.AppCompatResources; import android.util.AttributeSet; import android.widget.CheckedTextView; /** * A {@link CheckedTextView} which supports compatible features on older version of the platform. * <p> * <p>This will automatically be used when you use {@link CheckedTextView} in your layouts. * You should only need to manually use this class when writing custom views.</p> */ public class XpAppCompatCheckedTextView extends CheckedTextView implements TintableBackgroundView, TintableCompoundDrawableView { private static final int[] TINT_ATTRS = { android.R.attr.checkMark }; private final AppCompatBackgroundHelper mBackgroundTintHelper; private final AppCompatTextHelper mTextHelper; private XpAppCompatCompoundDrawableHelper mTextCompoundDrawableHelper; public XpAppCompatCheckedTextView(Context context) { this(context, null); } public XpAppCompatCheckedTextView(Context context, AttributeSet attrs) { this(context, attrs, android.R.attr.checkedTextViewStyle); } public XpAppCompatCheckedTextView(Context context, AttributeSet attrs, int defStyleAttr) { super(TintContextWrapper.wrap(context), attrs, defStyleAttr); mBackgroundTintHelper = new AppCompatBackgroundHelper(this); mBackgroundTintHelper.loadFromAttributes(attrs, defStyleAttr); mTextHelper = AppCompatTextHelper.create(this); mTextHelper.loadFromAttributes(attrs, defStyleAttr); mTextCompoundDrawableHelper = new XpAppCompatCompoundDrawableHelper(this); mTextCompoundDrawableHelper.loadFromAttributes(attrs, defStyleAttr); TintTypedArray a = TintTypedArray.obtainStyledAttributes(getContext(), attrs, TINT_ATTRS, defStyleAttr, 0); setCheckMarkDrawable(a.getDrawable(0)); a.recycle(); } @Override public void setCheckMarkDrawable(@DrawableRes int resId) { setCheckMarkDrawable(AppCompatResources.getDrawable(getContext(), resId)); } @Override @SuppressWarnings("deprecation") public void setTextAppearance(Context context, int resId) { super.setTextAppearance(context, resId); if (mTextHelper != null) { mTextHelper.onSetTextAppearance(context, resId); } } @Override public void setBackgroundResource(@DrawableRes int resId) { super.setBackgroundResource(resId); if (mBackgroundTintHelper != null) { mBackgroundTintHelper.onSetBackgroundResource(resId); } } @Override @SuppressWarnings("deprecation") public void setBackgroundDrawable(Drawable background) { super.setBackgroundDrawable(background); if (mBackgroundTintHelper != null) { mBackgroundTintHelper.onSetBackgroundDrawable(background); } } /** * This should be accessed via * {@link android.support.v4.view.ViewCompat#setBackgroundTintList(android.view.View, ColorStateList)} * * @hide */ @Override public void setSupportBackgroundTintList(@Nullable ColorStateList tint) { if (mBackgroundTintHelper != null) { mBackgroundTintHelper.setSupportBackgroundTintList(tint); } } /** * This should be accessed via * {@link android.support.v4.view.ViewCompat#getBackgroundTintList(android.view.View)} * * @hide */ @Override @Nullable public ColorStateList getSupportBackgroundTintList() { return mBackgroundTintHelper != null ? mBackgroundTintHelper.getSupportBackgroundTintList() : null; } /** * This should be accessed via * {@link android.support.v4.view.ViewCompat#setBackgroundTintMode(android.view.View, PorterDuff.Mode)} * * @hide */ @Override public void setSupportBackgroundTintMode(@Nullable PorterDuff.Mode tintMode) { if (mBackgroundTintHelper != null) { mBackgroundTintHelper.setSupportBackgroundTintMode(tintMode); } } /** * This should be accessed via * {@link android.support.v4.view.ViewCompat#getBackgroundTintMode(android.view.View)} * * @hide */ @Override @Nullable public PorterDuff.Mode getSupportBackgroundTintMode() { return mBackgroundTintHelper != null ? mBackgroundTintHelper.getSupportBackgroundTintMode() : null; } @Override protected void drawableStateChanged() { super.drawableStateChanged(); if (mBackgroundTintHelper != null) { mBackgroundTintHelper.applySupportBackgroundTint(); } if (mTextCompoundDrawableHelper != null) { mTextCompoundDrawableHelper.applySupportTint(); } } @Override @TargetApi(4) public void setCompoundDrawablesRelativeWithIntrinsicBounds(@DrawableRes int start, @DrawableRes int top, @DrawableRes int end, @DrawableRes int bottom) { if (mTextCompoundDrawableHelper != null) { mTextCompoundDrawableHelper.setCompoundDrawablesRelativeWithIntrinsicBounds(start, top, end, bottom); } } @Override public void setCompoundDrawablesWithIntrinsicBounds(@DrawableRes int left, @DrawableRes int top, @DrawableRes int right, @DrawableRes int bottom) { if (mTextCompoundDrawableHelper != null) { mTextCompoundDrawableHelper.setCompoundDrawablesWithIntrinsicBounds(left, top, right, bottom); } } @Override public void setCompoundDrawables(Drawable left, Drawable top, Drawable right, Drawable bottom) { super.setCompoundDrawables(left, top, right, bottom); if (mTextCompoundDrawableHelper != null) { mTextCompoundDrawableHelper.onSetCompoundDrawables(left, top, right, bottom); } } @Override public void setCompoundDrawablesRelative(Drawable start, Drawable top, Drawable end, Drawable bottom) { super.setCompoundDrawablesRelative(start, top, end, bottom); if (mTextCompoundDrawableHelper != null) { mTextCompoundDrawableHelper.onSetCompoundDrawablesRelative(start, top, end, bottom); } } @Override public void setSupportCompoundDrawableTintList(@Nullable ColorStateList tint) { if (mTextCompoundDrawableHelper != null) { mTextCompoundDrawableHelper.setSupportTintList(tint); } } @Nullable @Override public ColorStateList getSupportCompoundDrawableTintList() { if (mTextCompoundDrawableHelper != null) { return mTextCompoundDrawableHelper.getSupportTintList(); } return null; } @Override public void setSupportCompoundDrawableTintMode(@Nullable PorterDuff.Mode tintMode) { if (mTextCompoundDrawableHelper != null) { mTextCompoundDrawableHelper.setSupportTintMode(tintMode); } } @Nullable @Override public PorterDuff.Mode getSupportCompoundDrawableTintMode() { if (mTextCompoundDrawableHelper != null) { return mTextCompoundDrawableHelper.getSupportTintMode(); } return null; } }