Add a BlogActivity that shows a list of blog posts

This commit lays the groundwork for #415

briar-android/src/org/briarproject/android/blogs/BlogPostItem.java

@@ -0,0 +1,52 @@
+package org.briarproject.android.blogs;
+
+import org.briarproject.api.blogs.BlogPostHeader;
+import org.briarproject.api.identity.Author;
+import org.briarproject.api.identity.Author.Status;
+import org.briarproject.api.sync.MessageId;
+
+// This class is not thread-safe
+class BlogPostItem {
+
+	private final BlogPostHeader header;
+	private final byte[] body;
+	private boolean read;
+
+	BlogPostItem(BlogPostHeader header, byte[] body) {
+		this.header = header;
+		this.body = body;
+		read = header.isRead();
+	}
+
+	public MessageId getId() {
+		return header.getId();
+	}
+
+	public String getTitle() {
+		return header.getTitle();
+	}
+
+	public byte[] getBody() {
+		return body;
+	}
+
+	public long getTimestamp() {
+		return header.getTimestamp();
+	}
+
+	public Author getAuthor() {
+		return header.getAuthor();
+	}
+
+	Status getAuthorStatus() {
+		return header.getAuthorStatus();
+	}
+
+	public void setRead(boolean read) {
+		this.read = read;
+	}
+
+	public boolean isRead() {
+		return read;
+	}
+}