1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.example.android.apis.app; 17 18 import com.example.android.apis.R; 19 20 import android.app.ActionBar; 21 import android.app.ActionBar.Tab; 22 import android.app.Activity; 23 import android.app.FragmentTransaction; 24 import android.os.Bundle; 25 import android.view.Gravity; 26 import android.view.Menu; 27 import android.view.View; 28 import android.view.ViewGroup.LayoutParams; 29 30 /** 31 * This demo shows how various action bar display option flags can be combined and their effects. 32 */ 33 public class ActionBarDisplayOptions extends Activity 34 implements View.OnClickListener, ActionBar.TabListener { 35 private View mCustomView; 36 37 @Override onCreate(Bundle savedInstanceState)38 protected void onCreate(Bundle savedInstanceState) { 39 super.onCreate(savedInstanceState); 40 setContentView(R.layout.action_bar_display_options); 41 42 findViewById(R.id.toggle_home_as_up).setOnClickListener(this); 43 findViewById(R.id.toggle_show_home).setOnClickListener(this); 44 findViewById(R.id.toggle_use_logo).setOnClickListener(this); 45 findViewById(R.id.toggle_show_title).setOnClickListener(this); 46 findViewById(R.id.toggle_show_custom).setOnClickListener(this); 47 findViewById(R.id.toggle_navigation).setOnClickListener(this); 48 findViewById(R.id.cycle_custom_gravity).setOnClickListener(this); 49 findViewById(R.id.toggle_visibility).setOnClickListener(this); 50 findViewById(R.id.toggle_system_ui).setOnClickListener(this); 51 52 mCustomView = getLayoutInflater().inflate(R.layout.action_bar_display_options_custom, null); 53 // Configure several action bar elements that will be toggled by display options. 54 final ActionBar bar = getActionBar(); 55 bar.setCustomView(mCustomView, 56 new ActionBar.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); 57 58 bar.addTab(bar.newTab().setText("Tab 1").setTabListener(this)); 59 bar.addTab(bar.newTab().setText("Tab 2").setTabListener(this)); 60 bar.addTab(bar.newTab().setText("Tab 3").setTabListener(this)); 61 } 62 63 @Override onCreateOptionsMenu(Menu menu)64 public boolean onCreateOptionsMenu(Menu menu) { 65 getMenuInflater().inflate(R.menu.display_options_actions, menu); 66 return true; 67 } 68 onClick(View v)69 public void onClick(View v) { 70 final ActionBar bar = getActionBar(); 71 int flags = 0; 72 switch (v.getId()) { 73 case R.id.toggle_home_as_up: 74 flags = ActionBar.DISPLAY_HOME_AS_UP; 75 break; 76 case R.id.toggle_show_home: 77 flags = ActionBar.DISPLAY_SHOW_HOME; 78 break; 79 case R.id.toggle_use_logo: 80 flags = ActionBar.DISPLAY_USE_LOGO; 81 break; 82 case R.id.toggle_show_title: 83 flags = ActionBar.DISPLAY_SHOW_TITLE; 84 break; 85 case R.id.toggle_show_custom: 86 flags = ActionBar.DISPLAY_SHOW_CUSTOM; 87 break; 88 89 case R.id.toggle_navigation: 90 bar.setNavigationMode( 91 bar.getNavigationMode() == ActionBar.NAVIGATION_MODE_STANDARD 92 ? ActionBar.NAVIGATION_MODE_TABS 93 : ActionBar.NAVIGATION_MODE_STANDARD); 94 return; 95 case R.id.cycle_custom_gravity: 96 ActionBar.LayoutParams lp = (ActionBar.LayoutParams) mCustomView.getLayoutParams(); 97 int newGravity = 0; 98 switch (lp.gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 99 case Gravity.START: 100 newGravity = Gravity.CENTER_HORIZONTAL; 101 break; 102 case Gravity.CENTER_HORIZONTAL: 103 newGravity = Gravity.END; 104 break; 105 case Gravity.END: 106 newGravity = Gravity.START; 107 break; 108 } 109 lp.gravity = lp.gravity & ~Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK | newGravity; 110 bar.setCustomView(mCustomView, lp); 111 return; 112 case R.id.toggle_visibility: 113 if (bar.isShowing()) { 114 bar.hide(); 115 } else { 116 bar.show(); 117 } 118 return; 119 case R.id.toggle_system_ui: 120 if ((getWindow().getDecorView().getSystemUiVisibility() 121 & View.SYSTEM_UI_FLAG_FULLSCREEN) != 0) { 122 getWindow().getDecorView().setSystemUiVisibility(0); 123 } else { 124 getWindow().getDecorView().setSystemUiVisibility( 125 View.SYSTEM_UI_FLAG_FULLSCREEN); 126 } 127 return; 128 } 129 130 int change = bar.getDisplayOptions() ^ flags; 131 bar.setDisplayOptions(change, flags); 132 } 133 onTabSelected(Tab tab, FragmentTransaction ft)134 public void onTabSelected(Tab tab, FragmentTransaction ft) { 135 } 136 onTabUnselected(Tab tab, FragmentTransaction ft)137 public void onTabUnselected(Tab tab, FragmentTransaction ft) { 138 } 139 onTabReselected(Tab tab, FragmentTransaction ft)140 public void onTabReselected(Tab tab, FragmentTransaction ft) { 141 } 142 } 143