| /* |
| * 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.common.widgets; |
| |
| 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); |
| } |
| } |
| } |
| } |