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/*
* Copyright (C) 2017 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.example.android.emojicompat
import android.content.Context
import android.support.text.emoji.widget.EmojiTextViewHelper
import android.support.v7.widget.AppCompatTextView
import android.text.InputFilter
import android.util.AttributeSet
/**
* A sample implementation of custom TextView.
*
* You can use [EmojiTextViewHelper] to make your custom TextView compatible with
* EmojiCompat.
*/
class CustomTextView @JvmOverloads constructor(
context: Context,
attrs: AttributeSet? = null,
defStyleAttr: Int = 0)
: AppCompatTextView(context, attrs, defStyleAttr) {
private var mEmojiTextViewHelper: EmojiTextViewHelper? = null
init {
emojiTextViewHelper.updateTransformationMethod()
}
override fun setFilters(filters: Array<InputFilter>) {
super.setFilters(emojiTextViewHelper.getFilters(filters))
}
override fun setAllCaps(allCaps: Boolean) {
super.setAllCaps(allCaps)
emojiTextViewHelper.setAllCaps(allCaps)
}
/**
* Returns the [EmojiTextViewHelper] for this TextView.
*
* This property can be called from super constructors through [#setFilters] or [#setAllCaps].
*/
private val emojiTextViewHelper: EmojiTextViewHelper
get() {
if (mEmojiTextViewHelper == null) {
mEmojiTextViewHelper = EmojiTextViewHelper(this)
}
return mEmojiTextViewHelper as EmojiTextViewHelper
}
}
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