This is a part of an online Codename One course published around 2017 see it all for free at https://debugagent.com/series/cn1

1. Creating a Facebook Clone - Part XXIX

2. }
public static String formatTimeAgo(long time) {
long current = System.currentTimeMillis() - time;
if(current < HOUR) {
long minutes = current / 60000;
if(minutes < 2) {
return "Just now";
}
return minutes + " minutes ago";
}
if(current < HOUR * 10) {
return (current / HOUR) + " hours ago";
}
return L10NManager.getInstance().
formatDateTimeShort(new Date(time));
}
public static Component[] toArray(List<Component> components) {
Component[] cmps = new Component[components.size()];
components.toArray(cmps);
return cmps;
}
}
UIUtils

3. public class NewsfeedContainer extends InfiniteContainer {
@Override
public Component[] fetchComponents(int index, int amount) {
ArrayList<Component> components = new ArrayList<>();
if(index == 0) {
components.add(createPostBar());
components.add(UIUtils.createSpace());
}
int page = index / amount;
if(index % amount > 0) {
page++;
}
List<Post> response = ServerAPI.newsfeed(page, amount);
if(response == null) {
if(index == 0) {
return UIUtils.toArray(components);
}
return null;
}
for(Post p : response) {
NewsfeedContainer

4. public class NewsfeedContainer extends InfiniteContainer {
@Override
public Component[] fetchComponents(int index, int amount) {
ArrayList<Component> components = new ArrayList<>();
if(index == 0) {
components.add(createPostBar());
components.add(UIUtils.createSpace());
}
int page = index / amount;
if(index % amount > 0) {
page++;
}
List<Post> response = ServerAPI.newsfeed(page, amount);
if(response == null) {
if(index == 0) {
return UIUtils.toArray(components);
}
return null;
}
for(Post p : response) {
NewsfeedContainer

5. public class NewsfeedContainer extends InfiniteContainer {
@Override
public Component[] fetchComponents(int index, int amount) {
ArrayList<Component> components = new ArrayList<>();
if(index == 0) {
components.add(createPostBar());
components.add(UIUtils.createSpace());
}
int page = index / amount;
if(index % amount > 0) {
page++;
}
List<Post> response = ServerAPI.newsfeed(page, amount);
if(response == null) {
if(index == 0) {
return UIUtils.toArray(components);
}
return null;
}
for(Post p : response) {
NewsfeedContainer

6. public class NewsfeedContainer extends InfiniteContainer {
@Override
public Component[] fetchComponents(int index, int amount) {
ArrayList<Component> components = new ArrayList<>();
if(index == 0) {
components.add(createPostBar());
components.add(UIUtils.createSpace());
}
int page = index / amount;
if(index % amount > 0) {
page++;
}
List<Post> response = ServerAPI.newsfeed(page, amount);
if(response == null) {
if(index == 0) {
return UIUtils.toArray(components);
}
return null;
}
for(Post p : response) {
NewsfeedContainer

7. components.add(createPostBar());
components.add(UIUtils.createSpace());
}
int page = index / amount;
if(index % amount > 0) {
page++;
}
List<Post> response = ServerAPI.newsfeed(page, amount);
if(response == null) {
if(index == 0) {
return UIUtils.toArray(components);
}
return null;
}
for(Post p : response) {
components.add(createNewsItem(p.user.get(), p));
components.add(UIUtils.createHalfSpace());
}
return UIUtils.toArray(components);
}
private static Container createNewsTitle(User u, Post p) {
Button avatar = new Button("", u.getAvatar(6.5f), "CleanButton");
NewsfeedContainer

8. public class NewPostForm extends Form {
private static final String[] POST_STYLES = {
"Label", "PostStyleHearts", "PostStyleHands", "PostStyleBlack",
"PostStyleRed", "PostStylePurple" };
private TextArea post = new TextArea(3, 80);
private String postStyleValue;
public NewPostForm() {
super("Create Post", new BorderLayout());
Form current = getCurrentForm();
getToolbar().setBackCommand("Cancel",
Toolbar.BackCommandPolicy.
WHEN_USES_TITLE_OTHERWISE_ARROW,
e -> current.showBack());
getToolbar().addMaterialCommandToRightBar("",
FontImage.MATERIAL_DONE, e -> post(current));
User me = ServerAPI.me();
Container userSettings = BorderLayout.west(
new Label(me.getAvatar(6.5f), "HalfPaddedContainer"));
Button friends = new Button("Friends", "FriendCombo");
FontImage.setMaterialIcon(friends, FontImage.MATERIAL_PEOPLE);
userSettings.add(CENTER,
NewPostForm

9. public class NewPostForm extends Form {
private static final String[] POST_STYLES = {
"Label", "PostStyleHearts", "PostStyleHands", "PostStyleBlack",
"PostStyleRed", "PostStylePurple" };
private TextArea post = new TextArea(3, 80);
private String postStyleValue;
public NewPostForm() {
super("Create Post", new BorderLayout());
Form current = getCurrentForm();
getToolbar().setBackCommand("Cancel",
Toolbar.BackCommandPolicy.
WHEN_USES_TITLE_OTHERWISE_ARROW,
e -> current.showBack());
getToolbar().addMaterialCommandToRightBar("",
FontImage.MATERIAL_DONE, e -> post(current));
User me = ServerAPI.me();
Container userSettings = BorderLayout.west(
new Label(me.getAvatar(6.5f), "HalfPaddedContainer"));
Button friends = new Button("Friends", "FriendCombo");
FontImage.setMaterialIcon(friends, FontImage.MATERIAL_PEOPLE);
userSettings.add(CENTER,
NewPostForm

10. new Label(me.fullName(), "MultiLine1"),
FlowLayout.encloseIn(friends)));
add(NORTH, userSettings);
post.setUIID("Label");
post.setGrowByContent(false);
Container postStyles = createPostStyles(post);
add(CENTER, LayeredLayout.encloseIn(
BorderLayout.north(post), BorderLayout.south(postStyles)));
setEditOnShow(post);
}
private void post(Form previousForm) {
Dialog dlg = new InfiniteProgress().showInifiniteBlocking();
if(!ServerAPI.post(new Post().
content.set(post.getText()).
visibility.set("public").
styling.set(postStyleValue))) {
dlg.dispose();
ToastBar.showErrorMessage("Error posting to server");
return;
}
previousForm.showBack();
}
NewPostForm

11. new Label(me.fullName(), "MultiLine1"),
FlowLayout.encloseIn(friends)));
add(NORTH, userSettings);
post.setUIID("Label");
post.setGrowByContent(false);
Container postStyles = createPostStyles(post);
add(CENTER, LayeredLayout.encloseIn(
BorderLayout.north(post), BorderLayout.south(postStyles)));
setEditOnShow(post);
}
private void post(Form previousForm) {
Dialog dlg = new InfiniteProgress().showInifiniteBlocking();
if(!ServerAPI.post(new Post().
content.set(post.getText()).
visibility.set("public").
styling.set(postStyleValue))) {
dlg.dispose();
ToastBar.showErrorMessage("Error posting to server");
return;
}
previousForm.showBack();
}
NewPostForm

12. new Label(me.fullName(), "MultiLine1"),
FlowLayout.encloseIn(friends)));
add(NORTH, userSettings);
post.setUIID("Label");
post.setGrowByContent(false);
Container postStyles = createPostStyles(post);
add(CENTER, LayeredLayout.encloseIn(
BorderLayout.north(post), BorderLayout.south(postStyles)));
setEditOnShow(post);
}
private void post(Form previousForm) {
Dialog dlg = new InfiniteProgress().showInifiniteBlocking();
if(!ServerAPI.post(new Post().
content.set(post.getText()).
visibility.set("public").
styling.set(postStyleValue))) {
dlg.dispose();
ToastBar.showErrorMessage("Error posting to server");
return;
}
previousForm.showBack();
}
NewPostForm

13. public class FriendsContainer extends Container {
public FriendsContainer() {
super(BoxLayout.y());
setScrollableY(true);
init();
addPullToRefresh(() -> {
ServerAPI.refreshMe();
removeAll();
init();
revalidate();
});
}
private void init() {
int friendCount = ServerAPI.me().friendRequests.size();
EncodedImage placeholder = FontImage.createMaterial(
MATERIAL_PERSON, "Label", 18).toEncodedImage();
add(createTitle("FRIEND REQUESTS", friendCount));
if(friendCount == 0) {
FriendsContainer