1/* 2 * Copyright (C) 2014 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 17package com.example.android.supportv7.app; 18 19import com.example.android.supportv7.R; 20 21import android.os.Bundle; 22import android.support.v7.app.ActionBar; 23import android.support.v7.app.AppCompatActivity; 24import android.support.v7.widget.Toolbar; 25import android.view.Gravity; 26import android.view.Menu; 27import android.view.View; 28import android.view.ViewGroup.LayoutParams; 29 30/** 31 * This demo shows how various action bar display option flags can be combined and their effects 32 * when used on a Toolbar-provided Action Bar 33 */ 34public class ToolbarDisplayOptions extends AppCompatActivity 35 implements View.OnClickListener { 36 37 private View mCustomView; 38 private ActionBar.LayoutParams mCustomViewLayoutParams; 39 40 @Override 41 protected void onCreate(Bundle savedInstanceState) { 42 super.onCreate(savedInstanceState); 43 setContentView(R.layout.toolbar_display_options); 44 45 Toolbar toolbar = findViewById(R.id.toolbar); 46 setSupportActionBar(toolbar); 47 48 findViewById(R.id.toggle_home_as_up).setOnClickListener(this); 49 findViewById(R.id.toggle_show_home).setOnClickListener(this); 50 findViewById(R.id.toggle_use_logo).setOnClickListener(this); 51 findViewById(R.id.toggle_show_title).setOnClickListener(this); 52 findViewById(R.id.toggle_show_custom).setOnClickListener(this); 53 findViewById(R.id.cycle_custom_gravity).setOnClickListener(this); 54 findViewById(R.id.toggle_visibility).setOnClickListener(this); 55 56 // Configure several action bar elements that will be toggled by display options. 57 mCustomView = getLayoutInflater().inflate(R.layout.action_bar_display_options_custom, null); 58 mCustomViewLayoutParams = new ActionBar.LayoutParams( 59 LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 60 } 61 62 @Override 63 public boolean onCreateOptionsMenu(Menu menu) { 64 getMenuInflater().inflate(R.menu.display_options_actions, menu); 65 return true; 66 } 67 68 @Override 69 public boolean onSupportNavigateUp() { 70 finish(); 71 return true; 72 } 73 74 @Override 75 public void onClick(View v) { 76 final ActionBar bar = getSupportActionBar(); 77 int flags = 0; 78 switch (v.getId()) { 79 case R.id.toggle_home_as_up: 80 flags = ActionBar.DISPLAY_HOME_AS_UP; 81 break; 82 case R.id.toggle_show_home: 83 flags = ActionBar.DISPLAY_SHOW_HOME; 84 break; 85 case R.id.toggle_use_logo: 86 flags = ActionBar.DISPLAY_USE_LOGO; 87 getSupportActionBar().setLogo(R.drawable.ic_media_play); 88 break; 89 case R.id.toggle_show_title: 90 flags = ActionBar.DISPLAY_SHOW_TITLE; 91 break; 92 case R.id.toggle_show_custom: 93 flags = ActionBar.DISPLAY_SHOW_CUSTOM; 94 break; 95 case R.id.cycle_custom_gravity: { 96 ActionBar.LayoutParams lp = mCustomViewLayoutParams; 97 int newGravity = 0; 98 switch (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 99 case Gravity.LEFT: 100 newGravity = Gravity.CENTER_HORIZONTAL; 101 break; 102 case Gravity.CENTER_HORIZONTAL: 103 newGravity = Gravity.RIGHT; 104 break; 105 case Gravity.RIGHT: 106 newGravity = Gravity.LEFT; 107 break; 108 } 109 lp.gravity = lp.gravity & ~Gravity.HORIZONTAL_GRAVITY_MASK | newGravity; 110 bar.setCustomView(mCustomView, lp); 111 return; 112 } 113 case R.id.toggle_visibility: 114 if (bar.isShowing()) { 115 bar.hide(); 116 } else { 117 bar.show(); 118 } 119 return; 120 } 121 122 int change = bar.getDisplayOptions() ^ flags; 123 bar.setDisplayOptions(change, flags); 124 } 125} 126