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/*
* Copyright 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.networkconnect;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
/**
* Simple fragment containing only a TextView. Used by TextPagerAdapter to create
* tutorial-style pages for apps.
*/
public class SimpleTextFragment extends Fragment {
// Contains the text that will be displayed by this Fragment
String mText;
// Contains a resource ID for the text that will be displayed by this fragment.
int mTextId = -1;
// Keys which will be used to store/retrieve text passed in via setArguments.
public static final String TEXT_KEY = "text";
public static final String TEXT_ID_KEY = "text_id";
// For situations where the app wants to modify text at Runtime, exposing the TextView.
private TextView mTextView;
public SimpleTextFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Before initializing the textView, check if any arguments were provided via setArguments.
processArguments();
// Create a new TextView and set its text to whatever was provided.
mTextView = new TextView(getActivity());
mTextView.setGravity(Gravity.CENTER);
if (mText != null) {
mTextView.setText(mText);
Log.i("SimpleTextFragment", mText);
}
return mTextView;
}
public TextView getTextView() {
return mTextView;
}
/**
* Changes the text for this TextView, according to the resource ID provided.
* @param stringId A resource ID representing the text content for this Fragment's TextView.
*/
public void setText(int stringId) {
getTextView().setText(getActivity().getString(stringId));
}
/**
* Processes the arguments passed into this Fragment via setArguments method.
* Currently the method only looks for text or a textID, nothing else.
*/
public void processArguments() {
// For most objects we'd handle the multiple possibilities for initialization variables
// as multiple constructors. For Fragments, however, it's customary to use
// setArguments / getArguments.
if (getArguments() != null) {
Bundle args = getArguments();
if (args.containsKey(TEXT_KEY)) {
mText = args.getString(TEXT_KEY);
Log.d("Constructor", "Added Text.");
} else if (args.containsKey(TEXT_ID_KEY)) {
mTextId = args.getInt(TEXT_ID_KEY);
mText = getString(mTextId);
}
}
}
}
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