111 lines
3.4 KiB
Java
111 lines
3.4 KiB
Java
/*******************************************************************************
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* Copyright 2011, 2012 Chris Banes.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*******************************************************************************/
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package com.handmark.pulltorefresh.library.internal;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Matrix;
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import android.graphics.drawable.Drawable;
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import android.view.animation.Animation;
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import android.view.animation.RotateAnimation;
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import android.widget.ImageView.ScaleType;
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import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode;
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import com.handmark.pulltorefresh.library.PullToRefreshBase.Orientation;
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import com.handmark.pulltorefresh.library.R;
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public class RotateLoadingLayout extends LoadingLayout {
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static final int ROTATION_ANIMATION_DURATION = 1200;
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private final Animation mRotateAnimation;
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private final Matrix mHeaderImageMatrix;
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private float mRotationPivotX, mRotationPivotY;
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private final boolean mRotateDrawableWhilePulling;
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public RotateLoadingLayout(Context context, Mode mode, Orientation scrollDirection, TypedArray attrs) {
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super(context, mode, scrollDirection, attrs);
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mRotateDrawableWhilePulling = attrs.getBoolean(R.styleable.PullToRefresh_ptrRotateDrawableWhilePulling, true);
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mHeaderImage.setScaleType(ScaleType.MATRIX);
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mHeaderImageMatrix = new Matrix();
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mHeaderImage.setImageMatrix(mHeaderImageMatrix);
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mRotateAnimation = new RotateAnimation(0, 720, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
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0.5f);
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mRotateAnimation.setInterpolator(ANIMATION_INTERPOLATOR);
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mRotateAnimation.setDuration(ROTATION_ANIMATION_DURATION);
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mRotateAnimation.setRepeatCount(Animation.INFINITE);
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mRotateAnimation.setRepeatMode(Animation.RESTART);
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}
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public void onLoadingDrawableSet(Drawable imageDrawable) {
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if (null != imageDrawable) {
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mRotationPivotX = Math.round(imageDrawable.getIntrinsicWidth() / 2f);
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mRotationPivotY = Math.round(imageDrawable.getIntrinsicHeight() / 2f);
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}
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}
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protected void onPullImpl(float scaleOfLayout) {
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float angle;
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if (mRotateDrawableWhilePulling) {
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angle = scaleOfLayout * 90f;
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} else {
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angle = Math.max(0f, Math.min(180f, scaleOfLayout * 360f - 180f));
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}
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mHeaderImageMatrix.setRotate(angle, mRotationPivotX, mRotationPivotY);
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mHeaderImage.setImageMatrix(mHeaderImageMatrix);
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}
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@Override
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protected void refreshingImpl() {
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mHeaderImage.startAnimation(mRotateAnimation);
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}
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@Override
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protected void resetImpl() {
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mHeaderImage.clearAnimation();
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resetImageRotation();
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}
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private void resetImageRotation() {
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if (null != mHeaderImageMatrix) {
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mHeaderImageMatrix.reset();
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mHeaderImage.setImageMatrix(mHeaderImageMatrix);
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}
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}
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@Override
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protected void pullToRefreshImpl() {
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// NO-OP
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}
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@Override
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protected void releaseToRefreshImpl() {
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// NO-OP
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}
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@Override
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protected int getDefaultDrawableResId() {
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return R.drawable.default_ptr_rotate;
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}
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}
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