Java tutorial
/* * Copyright 2014 Jeremie Long * * 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.lithidsw.wallbox.app.wallsnap; import com.lithidsw.wallbox.R; import com.lithidsw.wallbox.utils.C; import android.app.ActionBar; import android.content.SharedPreferences; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentTransaction; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.widget.FrameLayout; import android.widget.FrameLayout.LayoutParams; public class WallSnapActivity extends FragmentActivity { SharedPreferences prefs; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); prefs = getSharedPreferences(C.PREF, MODE_PRIVATE); String themeSty = prefs.getString(C.PREF_THEME, null); if (themeSty != null) { setTheme(getResources().getIdentifier(themeSty, "style", C.THIS)); } else { setTheme(C.DEFAULT_THEME); } FrameLayout fl = new FrameLayout(this); LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); setContentView(fl, lp); if (savedInstanceState == null) { Fragment newFragment = new WallSnapFragment(); newFragment.setArguments(getIntent().getExtras()); FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); ft.replace(android.R.id.content, newFragment); ft.commit(); } setupActionBar(); } private void setupActionBar() { ActionBar actionBar = getActionBar(); if (actionBar != null) { actionBar.setDisplayHomeAsUpEnabled(true); } } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.wallsnap_menu, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: finish(); return true; default: return super.onOptionsItemSelected(item); } } }