Java tutorial
/* * Copyright (C) 2013 Chris Lacy 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.shafiq.mytwittle.view; import android.os.Bundle; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.LinearLayout; import android.widget.LinearLayout.LayoutParams; import android.widget.TextView; public final class PlaceholderPagerFragment extends BaseLaneFragment { private static final String KEY_CONTENT = "TestFragment:Content"; /* * */ public static PlaceholderPagerFragment newInstance(int laneIndex, String content, int position) { PlaceholderPagerFragment fragment = new PlaceholderPagerFragment(); fragment.configureBaseLaneFragment(laneIndex, "Placeholder", null); StringBuilder builder = new StringBuilder(); for (int i = 0; i < 20; i++) { builder.append(content).append(" "); } builder.deleteCharAt(builder.length() - 1); fragment.mContent = builder.toString(); return fragment; } private String mContent = "???"; /* * (non-Javadoc) * * @see * android.support.v4.app.Fragment#onCreateView(android.view.LayoutInflater, * android.view.ViewGroup, android.os.Bundle) */ @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { if ((savedInstanceState != null) && savedInstanceState.containsKey(KEY_CONTENT)) { mContent = savedInstanceState.getString(KEY_CONTENT); } TextView text = new TextView(getActivity()); text.setGravity(Gravity.CENTER); text.setText(mContent); text.setTextSize(20 * getResources().getDisplayMetrics().density); text.setPadding(20, 20, 20, 20); LinearLayout layout = new LinearLayout(getActivity()); layout.setLayoutParams(new LayoutParams(android.view.ViewGroup.LayoutParams.FILL_PARENT, android.view.ViewGroup.LayoutParams.FILL_PARENT)); layout.setGravity(Gravity.CENTER); layout.addView(text); setInitialDownloadState(InitialDownloadState.DOWNLOADED); return layout; } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putString(KEY_CONTENT, mContent); } /* * (non-Javadoc) * * @see com.shafiq.mytwittle.view.BaseLaneFragment#triggerInitialDownload() */ @Override public void triggerInitialDownload() { } /* * (non-Javadoc) * * @see com.shafiq.mytwittle.view.BaseLaneFragment#onJumpToTop() */ @Override public void onJumpToTop() { } /* * (non-Javadoc) * * @see com.shafiq.mytwittle.view.BaseLaneFragment#clearLocalCache() */ @Override public void clearLocalCache() { } /* * (non-Javadoc) * * @see com.shafiq.mytwittle.view.BaseLaneFragment#getContentToCache() */ @Override public String getDataToCache() { return null; } }