许多应用程序都使用了Navigation Drawer,如网易邮箱客户端。该控件位于 android.support.v4.widget.DrawerLayout ,用法如下,点击下载源码:
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent"> <!-- The main content view --> <FrameLayout android:id="@+id/content_frame" android:layout_width="match_parent" android:layout_height="match_parent" /> <!-- The navigation drawer --> <!-- should not be larger than 320 to show content --> <ListView android:id="@+id/left_drawer" android:layout_width="180dp" android:layout_height="match_parent" android:layout_gravity="start" android:choiceMode="singleChoice" android:divider="@android:color/transparent" android:dividerHeight="0dp" android:background="#111"/> </android.support.v4.widget.DrawerLayout>在编写代码之前确保加入了support v4库。
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="match_parent" android:text="Placeholder Text" android:layout_gravity="center" android:textAppearance="?android:attr/textAppearanceLarge" /> </LinearLayout>创建OpertingSystemFragment类
package com.vogella.android.actionbar.navigationdrawer; import android.app.Fragment; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; public class OpertingSystemFragment extends Fragment { public static final String ARG_OS= "OS"; private String string; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_layout, null); TextView textView = (TextView) view.findViewById(R.id.textView1); textView.setText(string); return view; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); } @Override public void setArguments(Bundle args) { string = args.getString(ARG_OS); } }添加String
<?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">Navigationdrawer</string> <string name="action_settings">Settings</string> <string name="action_update">Update</string> <string name="drawer_open">Open Drawer</string> <string name="drawer_close">Close Drawer</string> <string name="hello_world">Hello world!</string> <string-array name="operating_systems"> <item >Android</item> <item >iPhone</item> <item >Windows Mobile</item> </string-array> </resources>最后,创建Activity
package com.vogella.android.actionbar.navigationdrawer; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.content.res.Configuration; import android.os.Bundle; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.widget.DrawerLayout; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.Toast; public class MainActivity extends Activity { private String[] mPlanetTitles; private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; private CharSequence title; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); title = getActionBar().getTitle(); mPlanetTitles = getResources().getStringArray(R.array.operating_systems); System.out.println(mPlanetTitles.length); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerList = (ListView) findViewById(R.id.left_drawer); // Set the adapter for the list view mDrawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_item,R.id.content, mPlanetTitles)); // Set the list's click listener mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */ mDrawerLayout, /* DrawerLayout object */ R.drawable.ic_drawer, /* nav drawer icon to replace 'Up' caret */ R.string.drawer_open, /* "open drawer" description */ R.string.drawer_close /* "close drawer" description */) { /** Called when a drawer has settled in a completely closed state. */ public void onDrawerClosed(View view) { getActionBar().setTitle(title); } /** Called when a drawer has settled in a completely open state. */ public void onDrawerOpened(View drawerView) { getActionBar().setTitle("Open Drawer"); } }; // Set the drawer toggle as the DrawerListener mDrawerLayout.setDrawerListener(mDrawerToggle); getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); } private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView parent, View view, int position, long id) { selectItem(position); } } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Sync the toggle state after onRestoreInstanceState has occurred. mDrawerToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mDrawerToggle.onConfigurationChanged(newConfig); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // Pass the event to ActionBarDrawerToggle, if it returns // true, then it has handled the app icon touch event if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } // Handle your other action bar items... switch (item.getItemId()) { case R.id.action_settings: Toast.makeText(this, "Settings selected", Toast.LENGTH_LONG).show(); break; default: break; } return super.onOptionsItemSelected(item); } /** Swaps fragments in the main content view */ private void selectItem(int position) { // create a new fragment and specify the planet to show based on position Fragment fragment = new OpertingSystemFragment(); Bundle args = new Bundle(); args.putInt(OpertingSystemFragment.ARG_OS, position); fragment.setArguments(args); // Insert the fragment by replacing any existing fragment FragmentManager fragmentManager = getFragmentManager(); fragmentManager.beginTransaction() .replace(R.id.content_frame, fragment) .commit(); // Highlight the selected item, update the title, and close the drawer mDrawerList.setItemChecked(position, true); getActionBar().setTitle((mPlanetTitles[position])); mDrawerLayout.closeDrawer(mDrawerList); } }2. ActionBar + Tab navigation + Fragment
ackage com.vogella.android.actionbar.tabs; import android.app.ActionBar; import android.app.Fragment; import android.app.FragmentTransaction; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.view.Gravity; import android.view.LayoutInflater; import android.view.Menu; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; public class MainActivity extends FragmentActivity implements ActionBar.TabListener { /** * The serialization (saved instance state) Bundle key representing the * current tab position. */ private static final String STATE_SELECTED_NAVIGATION_ITEM = "selected_navigation_item"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Set up the action bar to show tabs. final ActionBar actionBar = getActionBar(); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); // for each of the sections in the app, add a tab to the action bar. actionBar.addTab(actionBar.newTab().setText(R.string.title_section1) .setTabListener(this)); actionBar.addTab(actionBar.newTab().setText(R.string.title_section2) .setTabListener(this)); actionBar.addTab(actionBar.newTab().setText(R.string.title_section3) .setTabListener(this)); } @Override public void onRestoreInstanceState(Bundle savedInstanceState) { // Restore the previously serialized current tab position. if (savedInstanceState.containsKey(STATE_SELECTED_NAVIGATION_ITEM)) { getActionBar().setSelectedNavigationItem(savedInstanceState.getInt(STATE_SELECTED_NAVIGATION_ITEM)); } } @Override public void onSaveInstanceState(Bundle outState) { // Serialize the current tab position. outState.putInt(STATE_SELECTED_NAVIGATION_ITEM, getActionBar() .getSelectedNavigationIndex()); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } @Override public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { // When the given tab is selected, show the tab contents in the // container view. Fragment fragment = new DummySectionFragment(); Bundle args = new Bundle(); args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, tab.getPosition() + 1); fragment.setArguments(args); getFragmentManager().beginTransaction() .replace(R.id.container, fragment).commit(); } @Override public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { } @Override public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { } /** * A dummy fragment representing a section of the app */ public static class DummySectionFragment extends Fragment { public static final String ARG_SECTION_NUMBER = "placeholder_text"; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { TextView textView = new TextView(getActivity()); textView.setGravity(Gravity.CENTER); textView.setText(Integer.toString(getArguments().getInt(ARG_SECTION_NUMBER))); return textView; } } }3.Dropdown menu 导航
package com.vogella.android.actionbar.spinner; import android.app.ActionBar; import android.app.Fragment; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.view.Gravity; import android.view.LayoutInflater; import android.view.Menu; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.TextView; public class MainActivity extends FragmentActivity implements ActionBar.OnNavigationListener { /** * The serialization (saved instance state) Bundle key representing the * current dropdown position. */ private static final String STATE_SELECTED_NAVIGATION_ITEM = "selected_navigation_item"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Set up the action bar to show a dropdown list. final ActionBar actionBar = getActionBar(); actionBar.setDisplayShowTitleEnabled(false); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); final String[] dropdownValues = getResources().getStringArray(R.array.dropdown); // Specify a SpinnerAdapter to populate the dropdown list. ArrayAdapter<String> adapter = new ArrayAdapter<String>(actionBar.getThemedContext(), android.R.layout.simple_spinner_item, android.R.id.text1, dropdownValues); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); // Set up the dropdown list navigation in the action bar. actionBar.setListNavigationCallbacks(adapter, this); // use getActionBar().getThemedContext() to ensure // that the text color is always appropriate for the action bar // background rather than the activity background. } @Override public void onRestoreInstanceState(Bundle savedInstanceState) { // Restore the previously serialized current dropdown position. if (savedInstanceState.containsKey(STATE_SELECTED_NAVIGATION_ITEM)) { getActionBar().setSelectedNavigationItem(savedInstanceState.getInt(STATE_SELECTED_NAVIGATION_ITEM)); } } @Override public void onSaveInstanceState(Bundle outState) { // Serialize the current dropdown position. outState.putInt(STATE_SELECTED_NAVIGATION_ITEM, getActionBar() .getSelectedNavigationIndex()); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } @Override public boolean onNavigationItemSelected(int position, long id) { // When the given dropdown item is selected, show its contents in the // container view. Fragment fragment = new DummySectionFragment(); Bundle args = new Bundle(); args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1); fragment.setArguments(args); getFragmentManager().beginTransaction() .replace(R.id.container, fragment).commit(); return true; } /** * A dummy fragment */ public static class DummySectionFragment extends Fragment { public static final String ARG_SECTION_NUMBER = "placeholder_text"; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { TextView textView = new TextView(getActivity()); textView.setGravity(Gravity.CENTER); textView.setText(Integer.toString(getArguments().getInt(ARG_SECTION_NUMBER))); return textView; } } }4. 使用Contextual action 模式
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <EditText android:id="@+id/myView" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" > <requestFocus /> </EditText> </LinearLayout>创建一个menu XML资源文件 contetual.xml
<?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/toast" android:title="Toast"> </item> </menu>Activity中的带代码如下:
package de.vogella.android.socialapp; import android.app.Activity; import android.os.Bundle; import android.view.ActionMode; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.widget.Toast; public class OverviewActivity extends Activity { protected Object mActionMode; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // define the contextual action mode View view = findViewById(R.id.myView); view.setOnLongClickListener(new View.OnLongClickListener() { // called when the user long-clicks on someView public boolean onLongClick(View view) { if (mActionMode != null) { return false; } // start the CAB using the ActionMode.Callback defined above mActionMode = OverviewActivity.this .startActionMode(mActionModeCallback); view.setSelected(true); return true; } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.mainmenu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { Toast.makeText(this, "Just a test", Toast.LENGTH_SHORT).show(); return true; } private ActionMode.Callback mActionModeCallback = new ActionMode.Callback() { // Called when the action mode is created; startActionMode() was called public boolean onCreateActionMode(ActionMode mode, Menu menu) { // inflate a menu resource providing context menu items MenuInflater inflater = mode.getMenuInflater(); // assumes that you have "contexual.xml" menu resources inflater.inflate(R.menu.contextual, menu); return true; } // called each time the action mode is shown. Always called after // onCreateActionMode, but // may be called multiple times if the mode is invalidated. public boolean onPrepareActionMode(ActionMode mode, Menu menu) { return false; // Return false if nothing is done } // called when the user selects a contextual menu item public boolean onActionItemClicked(ActionMode mode, MenuItem item) { switch (item.getItemId()) { case R.id.toast: Toast.makeText(OverviewActivity.this, "Selected menu", Toast.LENGTH_LONG).show(); mode.finish(); // Action picked, so close the CAB return true; default: return false; } } // called when the user exits the action mode public void onDestroyActionMode(ActionMode mode) { mActionMode = null; } }; }本文参考了这篇文章:
源码讲解ActionBar的各种用法,布布扣,bubuko.com
原文地址:http://blog.csdn.net/bigconvience/article/details/28907833