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BasicNetworking / src / com.example.android.basicnetworking /

SimpleTextFragment.java

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