@Override
protected void onFinishInflate() {
final int childCount = getChildCount();
if (childCount > 2) {
throw new IllegalStateException("PtrFrameLayout only can host 2 elements");
} else if (childCount == 2) {
if (mHeaderId != 0 && mHeaderView == null) {
mHeaderView = findViewById(mHeaderId);
}
if (mContainerId != 0 && mContent == null) {
mContent = findViewById(mContainerId);
}
// not specify header or content
if (mContent == null || mHeaderView == null) {
View child1 = getChildAt(0);
View child2 = getChildAt(1);
if (child1 instanceof PtrUIHandler) {
mHeaderView = child1;
mContent = child2;
} else if (child2 instanceof PtrUIHandler) {
mHeaderView = child2;
mContent = child1;
} else {
// both are not specified
if (mContent == null && mHeaderView == null) {
mHeaderView = child1;
mContent = child2;
}
// only one is specified
else {
if (mHeaderView == null) {
mHeaderView = mContent == child1 ? child2 : child1;
} else {
mContent = mHeaderView == child1 ? child2 : child1;
}
}
}
}
} else if (childCount == 1) {
mContent = getChildAt(0);
} else {
TextView errorView = new TextView(getContext());
errorView.setClickable(true);
errorView.setTextColor(0xffff6600);
errorView.setGravity(Gravity.CENTER);
errorView.setTextSize(20);
errorView.setText(
"The content view in PtrFrameLayout is empty. Do you forget to specify its id in xml layout file?");
mContent = errorView;
addView(mContent);
}
if (mHeaderView != null) {
mHeaderView.bringToFront();
}
super.onFinishInflate();
}
