ChatApp

Sample Chat App Design

This sample code contains 3 files which can be found here: app/src/main/java/com/example/jay/chatapp/

• ChatActivity
• ChatAdapter
• Message

ChatActivity

Responsible for loading dummy data from chat.json present inside assets folder.
Source can be REST API also depending on requirement.

ChatAdapter

getItemViewType() of RecyclerView.Adapter class comes in handy when u want to inflate different view for different row with same adapter.

The default implementation of this method returns 0, making the assumption of a single view type for the adapter. Unlike ListView adapters, types need not be contiguous. Consider using id resources to uniquely identify item view types.

@Override 
public int getItemViewType(int position) 
{ 
    return 0; 
}

Message

Data Source for RecyclerView.
Model class consisting of 3 private fields.

private String to;

private String from;

private String body;

public String getTo() {
    return to;
}

public void setTo(String to) {
    this.to = to;
}

public String getFrom() {
    return from;
}

public void setFrom(String from) {
    this.from = from;
}

public String getBody() {
    return body;
}

public void setBody(String body) {
    this.body = body;
}