open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/ToolableViewAnimator.java
2017-08-29 20:11:37 +02:00

120 lines
4 KiB
Java

/*
* Copyright (C) 2015 Vincent Breitmoser <look@my.amazin.horse>
*
* The MIT License (MIT)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.sufficientlysecure.keychain.ui.widget;
import android.content.Context;
import android.content.res.TypedArray;
import android.support.annotation.NonNull;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.widget.ViewAnimator;
import org.sufficientlysecure.keychain.R;
/** This view is essentially identical to ViewAnimator, but allows specifying the initial view
* for preview as an xml attribute. */
public class ToolableViewAnimator extends ViewAnimator {
private int mInitChild = -1;
public ToolableViewAnimator(Context context) {
super(context);
}
public ToolableViewAnimator(Context context, AttributeSet attrs) {
super(context, attrs);
if (isInEditMode()) {
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ToolableViewAnimator);
mInitChild = a.getInt(R.styleable.ToolableViewAnimator_initialView, -1);
a.recycle();
}
}
public ToolableViewAnimator(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs);
if (isInEditMode()) {
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ToolableViewAnimator, defStyleAttr, 0);
mInitChild = a.getInt(R.styleable.ToolableViewAnimator_initialView, -1);
a.recycle();
}
}
@Override
public void addView(@NonNull View child, int index, ViewGroup.LayoutParams params) {
if (isInEditMode() && mInitChild-- > 0) {
return;
}
super.addView(child, index, params);
}
@Override
public void setDisplayedChild(int whichChild) {
if (whichChild != getDisplayedChild()) {
super.setDisplayedChild(whichChild);
}
}
public void setDisplayedChild(int whichChild, boolean animate) {
if (animate) {
setDisplayedChild(whichChild);
return;
}
Animation savedInAnim = getInAnimation();
Animation savedOutAnim = getOutAnimation();
setInAnimation(null);
setOutAnimation(null);
setDisplayedChild(whichChild);
setInAnimation(savedInAnim);
setOutAnimation(savedOutAnim);
}
public void setDisplayedChildId(int id) {
if (getDisplayedChildId() == id) {
return;
}
for (int i = 0, count = getChildCount(); i < count; i++) {
if (getChildAt(i).getId() == id) {
setDisplayedChild(i);
return;
}
}
String name = getResources().getResourceEntryName(id);
throw new IllegalArgumentException("No view with ID " + name);
}
public int getDisplayedChildId() {
return getChildAt(getDisplayedChild()).getId();
}
}