public LoadingAndRetryManager(
Object activityOrFragmentOrView, OnLoadingAndRetryListener listener) {
if (listener == null) listener = DEFAULT_LISTENER;
ViewGroup contentParent = null;
Context context;
if (activityOrFragmentOrView instanceof Activity) {
Activity activity = (Activity) activityOrFragmentOrView;
context = activity;
contentParent = (ViewGroup) activity.findViewById(android.R.id.content);
} else if (activityOrFragmentOrView instanceof Fragment) {
Fragment fragment = (Fragment) activityOrFragmentOrView;
context = fragment.getActivity();
contentParent = (ViewGroup) (fragment.getView().getParent());
} else if (activityOrFragmentOrView instanceof View) {
View view = (View) activityOrFragmentOrView;
contentParent = (ViewGroup) (view.getParent());
context = view.getContext();
} else {
throw new IllegalArgumentException(
"the argument's type must be Fragment or Activity: init(context)");
}
int childCount = contentParent.getChildCount();
// get contentParent
int index = 0;
View oldContent;
if (activityOrFragmentOrView instanceof View) {
oldContent = (View) activityOrFragmentOrView;
for (int i = 0; i < childCount; i++) {
if (contentParent.getChildAt(i) == oldContent) {
index = i;
break;
}
}
} else {
oldContent = contentParent.getChildAt(0);
}
contentParent.removeView(oldContent);
// setup content layout
LoadingAndRetryLayout loadingAndRetryLayout = new LoadingAndRetryLayout(context);
ViewGroup.LayoutParams lp = oldContent.getLayoutParams();
contentParent.addView(loadingAndRetryLayout, index, lp);
loadingAndRetryLayout.setContentView(oldContent);
// setup loading,retry,empty layout
setupLoadingLayout(listener, loadingAndRetryLayout);
setupRetryLayout(listener, loadingAndRetryLayout);
setupEmptyLayout(listener, loadingAndRetryLayout);
// callback
listener.setRetryEvent(loadingAndRetryLayout.getRetryView());
listener.setLoadingEvent(loadingAndRetryLayout.getLoadingView());
listener.setEmptyEvent(loadingAndRetryLayout.getEmptyView());
mLoadingAndRetryLayout = loadingAndRetryLayout;
}
private void setupLoadingLayout(
OnLoadingAndRetryListener listener, LoadingAndRetryLayout loadingAndRetryLayout) {
if (listener.isSetLoadingLayout()) {
int layoutId = listener.generateLoadingLayoutId();
if (layoutId != NO_LAYOUT_ID) {
loadingAndRetryLayout.setLoadingView(layoutId);
} else {
loadingAndRetryLayout.setLoadingView(listener.generateLoadingLayout());
}
} else {
if (BASE_LOADING_LAYOUT_ID != NO_LAYOUT_ID)
loadingAndRetryLayout.setLoadingView(BASE_LOADING_LAYOUT_ID);
}
}
private void setupEmptyLayout(
OnLoadingAndRetryListener listener, LoadingAndRetryLayout loadingAndRetryLayout) {
if (listener.isSetEmptyLayout()) {
int layoutId = listener.generateEmptyLayoutId();
if (layoutId != NO_LAYOUT_ID) {
loadingAndRetryLayout.setEmptyView(layoutId);
} else {
loadingAndRetryLayout.setEmptyView(listener.generateEmptyLayout());
}
} else {
if (BASE_EMPTY_LAYOUT_ID != NO_LAYOUT_ID)
loadingAndRetryLayout.setEmptyView(BASE_EMPTY_LAYOUT_ID);
}
}