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/*
* Copyright 2014 Google Inc. All rights reserved.
*
* 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.google.samples.apps.iosched.ui.widget;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.support.v4.widget.SwipeRefreshLayout;
import android.util.AttributeSet;
import com.google.samples.apps.iosched.R;
public class MultiSwipeRefreshLayout extends SwipeRefreshLayout {
private CanChildScrollUpCallback mCanChildScrollUpCallback;
private Drawable mForegroundDrawable;
public MultiSwipeRefreshLayout(Context context) {
this(context, null);
}
public MultiSwipeRefreshLayout(Context context, AttributeSet attrs) {
super(context, attrs);
final TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.MultiSwipeRefreshLayout, 0, 0);
mForegroundDrawable = a.getDrawable(R.styleable.MultiSwipeRefreshLayout_foreground);
if (mForegroundDrawable != null) {
mForegroundDrawable.setCallback(this);
setWillNotDraw(false);
}
a.recycle();
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
if (mForegroundDrawable != null) {
mForegroundDrawable.setBounds(0, 0, w, h);
}
}
@Override
public void draw(Canvas canvas) {
super.draw(canvas);
if (mForegroundDrawable != null) {
mForegroundDrawable.draw(canvas);
}
}
public void setCanChildScrollUpCallback(CanChildScrollUpCallback canChildScrollUpCallback) {
mCanChildScrollUpCallback = canChildScrollUpCallback;
}
public static interface CanChildScrollUpCallback {
public boolean canSwipeRefreshChildScrollUp();
}
@Override
public boolean canChildScrollUp() {
if (mCanChildScrollUpCallback != null) {
return mCanChildScrollUpCallback.canSwipeRefreshChildScrollUp();
}
return super.canChildScrollUp();
}
}
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