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add method setEnableScrollBarFadeInOut for QMUIContinuousNestedScrollLayout

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This commit is contained in:
cgspine
2019-11-08 20:15:24 +08:00
parent b6520e5d26
commit 0fe54aee2b
2 changed files with 67 additions and 20 deletions
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qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java
+28 -1
View File
@@ -51,6 +51,7 @@ public class QMUIContinuousNestedScrollLayout extends CoordinatorLayout implemen
};
private boolean mKeepBottomAreaStableWhenCheckLayout = false;
private QMUIDraggableScrollBar mDraggableScrollBar;
private boolean mEnableScrollBarFadeInOut = true;
private boolean mIsDraggableScrollBarEnabled = false;
private int mCurrentScrollState = IQMUIContinuousNestedScrollCommon.SCROLL_STATE_IDLE;
private boolean mIsDismissDownEvent = false;
@@ -72,6 +73,7 @@ public class QMUIContinuousNestedScrollLayout extends CoordinatorLayout implemen
private void ensureScrollBar() {
if (mDraggableScrollBar == null) {
mDraggableScrollBar = createScrollBar(getContext());
mDraggableScrollBar.setEnableFadeInAndOut(mEnableScrollBarFadeInOut);
mDraggableScrollBar.setCallback(this);
CoordinatorLayout.LayoutParams lp = new CoordinatorLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT);
@@ -81,7 +83,32 @@ public class QMUIContinuousNestedScrollLayout extends CoordinatorLayout implemen
}
public void setDraggableScrollBarEnabled(boolean draggableScrollBarEnabled) {
mIsDraggableScrollBarEnabled = draggableScrollBarEnabled;
if(mIsDraggableScrollBarEnabled != draggableScrollBarEnabled){
mIsDraggableScrollBarEnabled = draggableScrollBarEnabled;
if(mIsDraggableScrollBarEnabled && !mEnableScrollBarFadeInOut){
ensureScrollBar();
mDraggableScrollBar.setPercent(getCurrentScrollPercent());
mDraggableScrollBar.awakenScrollBar();
}
if(mDraggableScrollBar != null){
mDraggableScrollBar.setVisibility(draggableScrollBarEnabled ? View.VISIBLE: View.GONE);
}
}
}
public void setEnableScrollBarFadeInOut(boolean enableScrollBarFadeInOut) {
if(mEnableScrollBarFadeInOut != enableScrollBarFadeInOut){
mEnableScrollBarFadeInOut = enableScrollBarFadeInOut;
if(mIsDraggableScrollBarEnabled && !mEnableScrollBarFadeInOut){
ensureScrollBar();
mDraggableScrollBar.setPercent(getCurrentScrollPercent());
mDraggableScrollBar.awakenScrollBar();
}
if(mDraggableScrollBar != null){
mDraggableScrollBar.setEnableFadeInAndOut(enableScrollBarFadeInOut);
mDraggableScrollBar.invalidate();
}
}
}
protected QMUIDraggableScrollBar createScrollBar(Context context) {
qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIDraggableScrollBar.java
+39 -19
View File
@@ -49,6 +49,9 @@ import com.qmuiteam.qmui.util.QMUILangHelper;
public class QMUIDraggableScrollBar extends View {
private int[] STATE_PRESSED = new int[]{android.R.attr.state_pressed};
private int[] STATE_NORMAL = new int[]{};
private Drawable mDragDrawable;
private int mKeepShownTime = 800;
private int mTransitionDuration = 100;
@@ -67,6 +70,7 @@ public class QMUIDraggableScrollBar extends View {
private float mDragInnerTop = 0;
private int mAdjustDistanceProtection = QMUIDisplayHelper.dp2px(getContext(), 20);
private int mAdjustMaxDistanceOnce = QMUIDisplayHelper.dp2px(getContext(), 4);
private boolean enableFadeInAndOut = true;
public QMUIDraggableScrollBar(Context context) {
this(context, (AttributeSet) null);
@@ -93,6 +97,14 @@ public class QMUIDraggableScrollBar extends View {
mTransitionDuration = transitionDuration;
}
public void setEnableFadeInAndOut(boolean enableFadeInAndOut) {
this.enableFadeInAndOut = enableFadeInAndOut;
}
public boolean isEnableFadeInAndOut() {
return enableFadeInAndOut;
}
public void setDragDrawable(Drawable dragDrawable) {
mDragDrawable = dragDrawable.mutate();
invalidate();
@@ -138,6 +150,7 @@ public class QMUIDraggableScrollBar extends View {
mIsInDragging = true;
if(mCallback != null){
mCallback.onDragStarted();
mDragDrawable.setState(STATE_PRESSED);
}
}
} else if (action == MotionEvent.ACTION_MOVE) {
@@ -151,6 +164,7 @@ public class QMUIDraggableScrollBar extends View {
onDragging(drawable, y);
if(mCallback != null){
mCallback.onDragEnd();
mDragDrawable.setState(STATE_NORMAL);
}
}
}
@@ -189,29 +203,35 @@ public class QMUIDraggableScrollBar extends View {
if (drawableWidth <= 0 || drawableHeight <= 0) {
return;
}
long timeAfterStartShow = System.currentTimeMillis() - mStartTransitionTime;
long timeAfterEndShow;
int needInvalidate = -1;
if (timeAfterStartShow < mTransitionDuration) {
// in show animation
mCurrentAlpha = timeAfterStartShow * 1f / mTransitionDuration;
needInvalidate = 0;
} else if (timeAfterStartShow - mTransitionDuration < mKeepShownTime) {
// keep show
if(enableFadeInAndOut){
long timeAfterStartShow = System.currentTimeMillis() - mStartTransitionTime;
long timeAfterEndShow;
if (timeAfterStartShow < mTransitionDuration) {
// in show animation
mCurrentAlpha = timeAfterStartShow * 1f / mTransitionDuration;
needInvalidate = 0;
} else if (timeAfterStartShow - mTransitionDuration < mKeepShownTime) {
// keep show
mCurrentAlpha = 1f;
needInvalidate = (int) (mKeepShownTime - (timeAfterStartShow - mTransitionDuration));
} else if ((timeAfterEndShow = timeAfterStartShow - mTransitionDuration - mKeepShownTime)
< mTransitionDuration) {
// in hide animation
mCurrentAlpha = 1 - timeAfterEndShow * 1f / mTransitionDuration;
needInvalidate = 0;
} else {
mCurrentAlpha = 0f;
}
if (mCurrentAlpha <= 0f) {
return;
}
}else{
mCurrentAlpha = 1f;
needInvalidate = (int) (mKeepShownTime - (timeAfterStartShow - mTransitionDuration));
} else if ((timeAfterEndShow = timeAfterStartShow - mTransitionDuration - mKeepShownTime)
< mTransitionDuration) {
// in hide animation
mCurrentAlpha = 1 - timeAfterEndShow * 1f / mTransitionDuration;
needInvalidate = 0;
} else {
mCurrentAlpha = 0f;
}
if (mCurrentAlpha <= 0f) {
return;
}
drawable.setAlpha((int) (mCurrentAlpha * 255));
int totalHeight = getHeight() - getScrollBarTopMargin() - getScrollBarBottomMargin();
int totalWidth = getWidth();
int top = getScrollBarTopMargin() + (int) ((totalHeight - drawableHeight) * mPercent);