public void setLoading(boolean loading) {
if (mLoading != loading) {
ensureTarget();
mCurrPercentage = 0;
mLoading = loading;
if (mLoading) {
mProgressBarBottom.start();
} else {
mLastDirection = Mode.DISABLED;
mProgressBarBottom.stop();
}
}
}
/**
* Notify the widget that refresh state has changed. Do not call this when refresh is triggered by
* a swipe gesture.
*
* @param refreshing Whether or not the view should show refresh progress.
*/
public void setRefreshing(boolean refreshing) {
if (mRefreshing != refreshing) {
ensureTarget();
mCurrPercentage = 0;
mRefreshing = refreshing;
if (mRefreshing) {
mProgressBar.start();
} else {
mLastDirection = Mode.DISABLED;
mProgressBar.stop();
}
}
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
final int width = getMeasuredWidth();
final int height = getMeasuredHeight();
mProgressBar.setBounds(0, 0, width, mProgressBarHeight);
if (getChildCount() == 0) {
return;
}
final View child = getChildAt(0);
final int childLeft = getPaddingLeft();
final int childTop = mCurrentTargetOffsetTop + getPaddingTop();
final int childWidth = width - getPaddingLeft() - getPaddingRight();
final int childHeight = height - getPaddingTop() - getPaddingBottom();
child.layout(childLeft, childTop, childLeft + childWidth, childTop + childHeight);
mProgressBarBottom.setBounds(0, height - mProgressBarHeight, width, height);
}
// 设置进度条的显示百分比
private void setTriggerPercentage(float percent) {
if (percent == 0f) {
// No-op. A null trigger means it's uninitialized, and setting it to zero-percent
// means we're trying to reset state, so there's nothing to reset in this case.
mCurrPercentage = 0;
return;
}
mCurrPercentage = percent;
if (((mMode == Mode.PULL_FROM_START) || (mMode == Mode.BOTH))
&& mLastDirection != Mode.PULL_FROM_END
&& !mLoading) {
mProgressBar.setTriggerPercentage(percent);
} else if (((mMode == Mode.PULL_FROM_END) || (mMode == Mode.BOTH))
&& mLastDirection != Mode.PULL_FROM_START
&& !mRefreshing) {
mProgressBarBottom.setTriggerPercentage(percent);
}
}
@Override
public void applyTransformation(float interpolatedTime, Transformation t) {
float percent = mFromPercentage + ((0 - mFromPercentage) * interpolatedTime);
mProgressBar.setTriggerPercentage(percent);
}
@Override
public void draw(Canvas canvas) {
super.draw(canvas);
mProgressBar.draw(canvas);
mProgressBarBottom.draw(canvas);
}
private void setColorSchemeColorsBottom(int color1, int color2, int color3, int color4) {
ensureTarget();
mProgressBarBottom.setColorScheme(color1, color2, color3, color4);
}