Java tutorial
/* * Copyright (c) 2016 Carmen Alvarez * * This file is part of Poet Assistant. * * Poet Assistant is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Poet Assistant is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Poet Assistant. If not, see <http://www.gnu.org/licenses/>. */ package ca.rmen.android.poetassistant.compat; import android.content.Context; import android.os.Build; import android.support.annotation.DrawableRes; import android.support.graphics.drawable.VectorDrawableCompat; import android.text.style.ImageSpan; import android.widget.TextView; public final class VectorCompat { private VectorCompat() { // prevent instantiation } @SuppressWarnings("SameParameterValue") public static ImageSpan createVectorImageSpan(Context context, @DrawableRes int resId) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { return new ImageSpan(context, resId); } VectorDrawableCompat drawable = createVectorDrawable(context, resId); assert drawable != null; drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight()); return new ImageSpan(drawable); } /** * AppCompat 23.3.0 removed support of vector drawables attributes like * drawableLeft, from xml. Use this method to use a vector drawable as * a compound drawable of a TextView. */ @SuppressWarnings("SameParameterValue") public static void setCompoundVectorDrawables(Context context, TextView textView, @DrawableRes int start, @DrawableRes int top, @DrawableRes int end, @DrawableRes int bottom) { android.support.v4.widget.TextViewCompat.setCompoundDrawablesRelativeWithIntrinsicBounds(textView, createVectorDrawable(context, start), createVectorDrawable(context, top), createVectorDrawable(context, end), createVectorDrawable(context, bottom)); } private static VectorDrawableCompat createVectorDrawable(Context context, @DrawableRes int res) { if (res == 0) return null; return VectorDrawableCompat.create(context.getResources(), res, null); } }