UI for creating private groups

briar-android/src/org/briarproject/android/privategroup/creation/CreateGroupFragment.java

@@ -0,0 +1,93 @@
+package org.briarproject.android.privategroup.creation;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.EditText;
+
+import org.briarproject.R;
+import org.briarproject.android.ActivityComponent;
+import org.briarproject.android.fragment.BaseFragment;
+
+import static org.briarproject.api.privategroup.PrivateGroupConstants.MAX_GROUP_NAME_LENGTH;
+
+public class CreateGroupFragment extends BaseFragment {
+
+	public final static String TAG = CreateGroupFragment.class.getName();
+
+	private CreateGroupListener listener;
+	private EditText name;
+	private Button button;
+
+	@Override
+	public void onAttach(Context context) {
+		super.onAttach(context);
+		listener = (CreateGroupListener) context;
+	}
+
+	@Override
+	public View onCreateView(LayoutInflater inflater, ViewGroup container,
+			Bundle savedInstanceState) {
+
+		// inflate view
+		View v = inflater.inflate(R.layout.fragment_create_group, container,
+				false);
+		name = (EditText) v.findViewById(R.id.name);
+		name.addTextChangedListener(new TextWatcher() {
+			@Override
+			public void beforeTextChanged(CharSequence s, int start, int count,
+					int after) {
+			}
+
+			@Override
+			public void onTextChanged(CharSequence s, int start, int before,
+					int count) {
+				validateName();
+			}
+
+			@Override
+			public void afterTextChanged(Editable s) {
+			}
+		});
+		button = (Button) v.findViewById(R.id.button);
+		button.setOnClickListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View v) {
+				listener.hideSoftKeyboard(name);
+				listener.onGroupNameChosen(name.getText().toString());
+			}
+		});
+
+		return v;
+	}
+
+	@Override
+	public void onStart() {
+		super.onStart();
+		listener.showSoftKeyboard(name);
+	}
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+	}
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+
+	private void validateName() {
+		String name = this.name.getText().toString();
+		if (name.length() < 1 || name.length() > MAX_GROUP_NAME_LENGTH)
+			button.setEnabled(false);
+		else if(!button.isEnabled())
+			button.setEnabled(true);
+	}
+
+}