/**
* build the MiniDrawer
*
* @param ctx
* @return
*/
public View build(Context ctx) {
mContainer = new LinearLayout(ctx);
if (mInnerShadow) {
if (!mInRTL) {
mContainer.setBackgroundResource(R.drawable.material_drawer_shadow_left);
} else {
mContainer.setBackgroundResource(R.drawable.material_drawer_shadow_right);
}
}
// create and append recyclerView
mRecyclerView = new RecyclerView(ctx);
mContainer.addView(
mRecyclerView, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
// set the itemAnimator
mRecyclerView.setItemAnimator(new DefaultItemAnimator());
// some style improvements on older devices
mRecyclerView.setFadingEdgeLength(0);
// set the drawing cache background to the same color as the slider to improve performance
// mRecyclerView.setDrawingCacheBackgroundColor(UIUtils.getThemeColorFromAttrOrRes(mActivity,
// R.attr.material_drawer_background, R.color.material_drawer_background));
mRecyclerView.setClipToPadding(false);
// additional stuff
mRecyclerView.setLayoutManager(new LinearLayoutManager(ctx));
// adapter
mDrawerAdapter = new DrawerAdapter();
mRecyclerView.setAdapter(mDrawerAdapter);
// if the activity with the drawer should be fullscreen add the padding for the statusbar
if (mDrawer != null
&& mDrawer.mDrawerBuilder != null
&& (mDrawer.mDrawerBuilder.mFullscreen || mDrawer.mDrawerBuilder.mTranslucentStatusBar)) {
mRecyclerView.setPadding(
mRecyclerView.getPaddingLeft(),
UIUtils.getStatusBarHeight(ctx),
mRecyclerView.getPaddingRight(),
mRecyclerView.getPaddingBottom());
}
// if the activity with the drawer should be fullscreen add the padding for the navigationBar
if (mDrawer != null
&& mDrawer.mDrawerBuilder != null
&& (mDrawer.mDrawerBuilder.mFullscreen
|| mDrawer.mDrawerBuilder.mTranslucentNavigationBar)) {
mRecyclerView.setPadding(
mRecyclerView.getPaddingLeft(),
mRecyclerView.getPaddingTop(),
mRecyclerView.getPaddingRight(),
UIUtils.getNavigationBarHeight(ctx));
}
// set the adapter with the items
createItems();
return mContainer;
}
@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
boolean needsInvalidate = false;
if (mTopGlow != null && !mTopGlow.isFinished()) {
final int restore = c.save();
if (getClipToPadding(parent)) {
c.translate(parent.getPaddingLeft(), parent.getPaddingTop());
}
//noinspection ConstantConditions
needsInvalidate |= mTopGlow.draw(c);
c.restoreToCount(restore);
}
if (mBottomGlow != null && !mBottomGlow.isFinished()) {
final int restore = c.save();
c.rotate(180);
if (getClipToPadding(parent)) {
c.translate(
-parent.getWidth() + parent.getPaddingRight(),
-parent.getHeight() + parent.getPaddingBottom());
} else {
c.translate(-parent.getWidth(), -parent.getHeight());
}
needsInvalidate |= mBottomGlow.draw(c);
c.restoreToCount(restore);
}
if (needsInvalidate) {
ViewCompat.postInvalidateOnAnimation(parent);
}
}
@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
if (mDivider == null) {
super.onDrawOver(c, parent, state);
return;
}
// Initialization needed to avoid compiler warning
int left = 0, right = 0, top = 0, bottom = 0, size;
int orientation = mOrientation != -1 ? mOrientation : getOrientation(parent);
int childCount = parent.getChildCount();
if (orientation == LinearLayoutManager.VERTICAL) {
size = mDivider.getIntrinsicHeight();
left = parent.getPaddingLeft();
right = parent.getWidth() - parent.getPaddingRight();
} else { // horizontal
size = mDivider.getIntrinsicWidth();
top = parent.getPaddingTop();
bottom = parent.getHeight() - parent.getPaddingBottom();
}
for (int i = mShowFirstDivider ? 0 : 1; i < childCount; i++) {
View child = parent.getChildAt(i);
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
if (orientation == LinearLayoutManager.VERTICAL) {
top = child.getTop() - params.topMargin - size;
bottom = top + size;
} else { // horizontal
left = child.getLeft() - params.leftMargin;
right = left + size;
}
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
// show last divider
if (mShowLastDivider && childCount > 0) {
View child = parent.getChildAt(childCount - 1);
if (parent.getChildAdapterPosition(child) == (state.getItemCount() - 1)) {
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
if (orientation == LinearLayoutManager.VERTICAL) {
top = child.getBottom() + params.bottomMargin;
bottom = top + size;
} else { // horizontal
left = child.getRight() + params.rightMargin;
right = left + size;
}
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
}
/**
* 绘制水平方向的分割线
*
* @param c
* @param parent
*/
private void drawHDeraction(Canvas c, RecyclerView parent) {
int left = parent.getPaddingLeft();
int right = parent.getWidth() - parent.getPaddingRight();
int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
View child = parent.getChildAt(i);
RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) child.getLayoutParams();
int top = child.getBottom() + layoutParams.bottomMargin;
int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
public void drawVertical(Canvas c, RecyclerView parent) {
final int left = parent.getPaddingLeft();
final int right = parent.getWidth() - parent.getPaddingRight();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
/**
* 绘制纵向 item 分割线
*
* @param canvas
* @param parent
*/
private void drawVertical(Canvas canvas, RecyclerView parent) {
final int left = parent.getPaddingLeft();
final int right = parent.getMeasuredWidth() - parent.getPaddingRight();
final int childSize = parent.getChildCount();
// linearLayoutManager.findFirstVisibleItemPosition();
for (int i = 0; i < childSize; i++) {
final View child = parent.getChildAt(i);
RecyclerView.LayoutParams layoutParams =
(RecyclerView.LayoutParams) child.getLayoutParams();
final int top = child.getBottom() + layoutParams.bottomMargin;
final int bottom = top + mItemSize;
canvas.drawRect(left, top, right, bottom, mPaint);
}
}
private static void updateGlowSize(RecyclerView rv, EdgeEffectCompat topGlow) {
int width = rv.getMeasuredWidth();
int height = rv.getMeasuredHeight();
if (getClipToPadding(rv)) {
width -= rv.getPaddingLeft() - rv.getPaddingRight();
height -= rv.getPaddingTop() - rv.getPaddingBottom();
}
width = Math.max(0, width);
height = Math.max(0, height);
topGlow.setSize(width, height);
}
private void drawVertical(Canvas canvas, RecyclerView parent) {
final int left = parent.getPaddingLeft();
final int right = parent.getWidth() - parent.getPaddingRight();
final int childCount = parent.getChildCount();
for (int i = 1; i < childCount; i++) {
final View child = parent.getChildAt(i);
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
final int size = mDivider.getIntrinsicHeight();
final int top = child.getTop() - params.topMargin;
final int bottom = top + size;
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(canvas);
}
}
@Override
public void attach(RecyclerView.OnScrollListener scrollListener, RecyclerView recyclerView) {
if (scrollListener != null) {
recyclerView.setOnScrollListener(
new GroupOnScrollListener(scrollListener, mFloatHeaderScrollListener));
} else {
recyclerView.setOnScrollListener(mFloatHeaderScrollListener);
}
recyclerView.setPadding(
recyclerView.getPaddingTop(),
mAdditionalAdapterHeight,
recyclerView.getPaddingRight(),
recyclerView.getPaddingBottom());
mRecyclerViews.add(recyclerView);
}
@Override
public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
int left = parent.getPaddingLeft();
int right = parent.getRight() - parent.getPaddingRight();
for (int i = 0; i < parent.getChildCount(); i++) {
View child = parent.getChildAt(i);
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
int top = child.getBottom() + params.bottomMargin;
int bottom = top + divider.getIntrinsicHeight();
divider.setBounds(left, top, right, bottom);
divider.draw(c);
}
}
@Override
public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
int left = parent.getPaddingLeft();
int right = parent.getWidth() - parent.getPaddingRight();
int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
View child = parent.getChildAt(i);
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
int top = child.getBottom() + params.bottomMargin;
int bottom = top + 1;
c.drawRect(left, top, right, bottom, mPaint);
}
}
public void drawVertical(@NonNull Canvas c, @NonNull RecyclerView parent) {
final int left = parent.getPaddingLeft();
final int right = parent.getWidth() - parent.getPaddingRight();
final int childCount = parent.getChildCount();
IntStream.range(0, childCount)
.forEach(
i -> {
final View child = parent.getChildAt(i);
final RecyclerView.LayoutParams params =
(RecyclerView.LayoutParams) child.getLayoutParams();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
});
}
@Override
public View getHeader(RecyclerView parent, int position) {
long headerId = mAdapter.getHeaderId(position);
View header = mHeaderViews.get(headerId);
if (header == null) {
// TODO - recycle views
RecyclerView.ViewHolder viewHolder = mAdapter.onCreateHeaderViewHolder(parent);
mAdapter.onBindHeaderViewHolder(viewHolder, position);
header = viewHolder.itemView;
if (header.getLayoutParams() == null) {
header.setLayoutParams(
new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
}
int widthSpec;
int heightSpec;
if (mOrientationProvider.getOrientation(parent) == LinearLayoutManager.VERTICAL) {
widthSpec = View.MeasureSpec.makeMeasureSpec(parent.getWidth(), View.MeasureSpec.EXACTLY);
heightSpec =
View.MeasureSpec.makeMeasureSpec(parent.getHeight(), View.MeasureSpec.UNSPECIFIED);
} else {
widthSpec =
View.MeasureSpec.makeMeasureSpec(parent.getWidth(), View.MeasureSpec.UNSPECIFIED);
heightSpec = View.MeasureSpec.makeMeasureSpec(parent.getHeight(), View.MeasureSpec.EXACTLY);
}
int childWidth =
ViewGroup.getChildMeasureSpec(
widthSpec,
parent.getPaddingLeft() + parent.getPaddingRight(),
header.getLayoutParams().width);
int childHeight =
ViewGroup.getChildMeasureSpec(
heightSpec,
parent.getPaddingTop() + parent.getPaddingBottom(),
header.getLayoutParams().height);
header.measure(childWidth, childHeight);
header.layout(0, 0, header.getMeasuredWidth(), header.getMeasuredHeight());
mHeaderViews.put(headerId, header);
}
return header;
}
@Override
public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
super.onDraw(c, parent, state);
final int left = parent.getPaddingLeft();
final int right = parent.getWidth() - parent.getPaddingRight();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
RecyclerView v = new RecyclerView(parent.getContext());
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
@Override
public void onDrawOver(Canvas canvas, RecyclerView parent, RecyclerView.State state) {
int left = parent.getPaddingLeft();
int right = parent.getWidth() - parent.getPaddingRight();
int top = parent.getPaddingTop();
int bottom = parent.getHeight() - parent.getPaddingBottom();
int orientation = getOrientation(parent);
int childCount = parent.getChildCount();
for (int i = showFirstDivider ? 0 : 1; i < childCount; i++) {
View child = parent.getChildAt(i);
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
if (orientation == LinearLayoutManager.VERTICAL) {
top = child.getTop() - params.topMargin;
bottom = top - (size / 2);
canvas.drawLine(left, bottom, right, bottom, paint);
} else {
left = child.getLeft() - params.leftMargin;
right = left - (size / 2);
canvas.drawLine(right, top, right, bottom, paint);
}
}
if (showLastDivider && childCount > 0) {
View child = parent.getChildAt(childCount - 1);
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
if (orientation == LinearLayoutManager.VERTICAL) {
top = child.getBottom() + params.bottomMargin;
bottom = top + size;
canvas.drawLine(left, bottom, right, bottom, paint);
} else {
left = child.getRight() + params.rightMargin;
right = left + (size / 2);
canvas.drawLine(right, top, right, bottom, paint);
}
}
}
public void drawVertical(Canvas c, RecyclerView parent) {
final int left = parent.getPaddingLeft();
final int right = parent.getWidth() - parent.getPaddingRight();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
// 有脚部时，最后一条不画
if (hasFooter
&& parent.getChildLayoutPosition(child) == parent.getLayoutManager().getItemCount() - 1) {
continue;
}
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
@Override
public void onDrawLoadMore(Canvas c, RecyclerView parent) {
super.onDrawLoadMore(c, parent);
mProgress = mProgress + 5;
if (mProgress == 100) {
mProgress = 0;
}
final int left = parent.getPaddingLeft();
final int right = parent.getMeasuredWidth() - parent.getPaddingRight();
final int childSize = parent.getChildCount();
final View child = parent.getChildAt(childSize - 1);
RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) child.getLayoutParams();
final int top = child.getBottom() + layoutParams.bottomMargin;
final int bottom = top + getLoadMorePadding() / 2;
paint.setAntiAlias(true); // 抗锯齿
paint.setFlags(Paint.ANTI_ALIAS_FLAG); // 增强消除锯齿
paint.setColor(Color.GRAY); // 画笔为灰色
paint.setStrokeWidth(10); // 画笔宽度
paint.setStyle(Paint.Style.STROKE); // 中空
c.drawCircle(
(right - left) / 2 - mCircleOffset,
bottom,
mCircleSize,
paint); // 在中心为（(right - left)/2,bottom）的地方画个半径为mCircleSize的圆，
paint.setColor(Color.GREEN); // 设置画笔为绿色
oval.set(
(right - left) / 2 - mCircleOffset - mCircleSize,
bottom - mCircleSize,
(right - left) / 2 - mCircleOffset + mCircleSize,
bottom + mCircleSize); // 在Circle小于圈圈大小的地方画圆，这样也就保证了半径为mCircleSize
c.drawArc(
oval,
-90,
((float) mProgress / 100) * 360,
false,
paint); // 圆弧，第二个参数为：起始角度，第三个为跨的角度，第四个为true的时候是实心，false的时候为空心
paint.reset(); // 将画笔重置
paint.setStrokeWidth(3); // 再次设置画笔的宽度
paint.setTextSize(40); // 设置文字的大小
paint.setColor(Color.BLACK); // 设置画笔颜色
c.drawText(getLoadmoreString(), (right - left) / 2, bottom + 10, paint);
}
private void updateTranslationOffset() {
final RecyclerView rv = mRecyclerView;
final int childCount = rv.getChildCount();
if (childCount > 0) {
mTranslationLeftLimit = 0;
mTranslationRightLimit = rv.getWidth() - mDraggingItemInfo.width;
mTranslationTopLimit = 0;
mTranslationBottomLimit = rv.getHeight() - mDraggingItemInfo.height;
switch (mLayoutOrientation) {
case CustomRecyclerViewUtils.ORIENTATION_VERTICAL:
{
mTranslationLeftLimit += rv.getPaddingLeft();
mTranslationRightLimit -= rv.getPaddingRight();
break;
}
case CustomRecyclerViewUtils.ORIENTATION_HORIZONTAL:
{
mTranslationTopLimit += rv.getPaddingTop();
mTranslationBottomLimit -= rv.getPaddingBottom();
break;
}
}
mTranslationRightLimit = Math.max(mTranslationLeftLimit, mTranslationRightLimit);
mTranslationBottomLimit = Math.max(mTranslationTopLimit, mTranslationBottomLimit);
if (!mIsScrolling) {
final int firstVisiblePosition =
CustomRecyclerViewUtils.findFirstVisibleItemPosition(rv, true);
final int lastVisiblePosition =
CustomRecyclerViewUtils.findLastVisibleItemPosition(rv, true);
final View firstChild =
findRangeFirstItem(rv, mRange, firstVisiblePosition, lastVisiblePosition);
final View lastChild =
findRangeLastItem(rv, mRange, firstVisiblePosition, lastVisiblePosition);
switch (mLayoutOrientation) {
case CustomRecyclerViewUtils.ORIENTATION_VERTICAL:
{
if (firstChild != null) {
mTranslationTopLimit = Math.min(mTranslationBottomLimit, firstChild.getTop());
}
if (lastChild != null) {
mTranslationBottomLimit = Math.min(mTranslationBottomLimit, lastChild.getTop());
}
break;
}
case CustomRecyclerViewUtils.ORIENTATION_HORIZONTAL:
{
if (firstChild != null) {
mTranslationLeftLimit = Math.min(mTranslationLeftLimit, firstChild.getLeft());
}
if (lastChild != null) {
mTranslationRightLimit = Math.min(mTranslationRightLimit, lastChild.getLeft());
}
break;
}
}
}
} else {
mTranslationRightLimit = mTranslationLeftLimit = rv.getPaddingLeft();
mTranslationBottomLimit = mTranslationTopLimit = rv.getPaddingTop();
}
mTranslationX = mTouchPositionX - mDraggingItemInfo.grabbedPositionX;
mTranslationY = mTouchPositionY - mDraggingItemInfo.grabbedPositionY;
mTranslationX = clip(mTranslationX, mTranslationLeftLimit, mTranslationRightLimit);
mTranslationY = clip(mTranslationY, mTranslationTopLimit, mTranslationBottomLimit);
}