Android－－DrawLayout隱藏式瀏覽選單

Android－－DrawLayout隱藏式瀏覽選單
DrawLayout的實現官方文檔上說的很詳細了，但是在開發的過程中，發現還是有點問題，官方的文檔有點舊了，mDrawerToggle = new ActionBarDrawerToggle(this,mDrawerLayout,R.string.open,R.string.close); 這個方法原來的api可以設定app的icon圖片，現在這個參數沒有了。
對於ActionBarDrawerToggle 這個類，作用時使得actionbar和drawlayout之間可以很好的相互組合。通過用ActionBarDrawerToggle可以實現app icon點擊來開啟抽屜的功能呢。
主要需要實現：
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);

 

  
@Override

  
public boolean onOptionsItemSelected(MenuItem item) {

  
// The action bar home/up action should open or close the drawer.

  
// ActionBarDrawerToggle will take care of this.

  
Log.v("haha",""+item.getItemId());

  
if (mDrawerToggle.onOptionsItemSelected(item)) {

  
return true;

  
}

  
// Handle action buttons

  
switch(item.getItemId()) {

  
case R.id.action_settings:

  


  
return true;

  
default:

  
return super.onOptionsItemSelected(item);

  
}

  
}
 

已經在主activity中重載這個方法來是的對於actionbar的item的操作可以傳給ActionBarDrawerToggle來處理，其實就我現在知道的就是處理actionbar的appicon的點擊動作。

 

  
@Override

  
protected void onPostCreate(Bundle savedInstanceState) {

  
super.onPostCreate(savedInstanceState);

  
mDrawerToggle.syncState();

  
}
 

這個方法的重載調用的syncState就是為了保持actionBar和ActionBarDrawerToggle的狀態一致，這個函數是Activity的生命週期裡的一個方法，只會調用一次。

主要的代碼：

 

  
package com.example.dolby.drawernavi;

  


  
import android.app.ActionBar;

  
import android.app.Fragment;

  
import android.app.FragmentManager;

  
import android.content.res.Configuration;

  
import android.support.v4.widget.DrawerLayout;

  
import android.support.v7.app.ActionBarActivity;

  
import android.os.Bundle;

  
import android.support.v7.app.ActionBarDrawerToggle;

  
import android.util.Log;

  
import android.view.Menu;

  
import android.view.MenuInflater;

  
import android.view.MenuItem;

  
import android.view.View;

  
import android.widget.AdapterView;

  
import android.widget.ArrayAdapter;

  
import android.widget.Button;

  
import android.widget.ListView;

  


  


  
public class MainActivity extends ActionBarActivity {

  
private String[] mPlanetTitles = {"list1","list2","list3"};

  
private DrawerLayout mDrawerLayout;

  
private ListView mDrawerList;

  
private Button drawbtn;

  
private ActionBarDrawerToggle mDrawerToggle;

  
@Override

  
protected void onCreate(Bundle savedInstanceState) {

  
super.onCreate(savedInstanceState);

  
setContentView(R.layout.activity_main);

  
//mPlanetTitles = getResources().getStringArray(R.array.planets_array);

  
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

  
mDrawerList = (ListView) findViewById(R.id.left_drawer);

  
mDrawerToggle = new ActionBarDrawerToggle(this,mDrawerLayout,R.string.open,R.string.close);

  
// Set the drawer toggle as the DrawerListener

  
mDrawerLayout.setDrawerListener(mDrawerToggle);

  
getSupportActionBar().setDisplayHomeAsUpEnabled(true);

  
getSupportActionBar().setHomeButtonEnabled(true);

  


  
// enable ActionBar app icon to behave as action to toggle nav drawer

  
//getActionBar().setDisplayHomeAsUpEnabled(true);

  
// Set the adapter for the list view

  
mDrawerList.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1

  
, mPlanetTitles));

  
// Set the list's click listener

  
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

  
}

  


  
private class DrawerItemClickListener implements ListView.OnItemClickListener

  
{

  


  
@Override

  
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

  
selectItem(position);

  
}

  
}

  


  
private void selectItem(int position)

  
{

  
Fragment fragment = new PlanetFragment();

  


  
// 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);

  
setTitle(mPlanetTitles[position]);

  
mDrawerLayout.closeDrawer(mDrawerList);

  
}

  


  


  
@Override

  
protected void onPostCreate(Bundle savedInstanceState) {

  
super.onPostCreate(savedInstanceState);

  
mDrawerToggle.syncState();

  
}

  


  
// @Override

  
// public void onConfigurationChanged(Configuration newConfig) {

  
// super.onConfigurationChanged(newConfig);

  
// mDrawerToggle.onConfigurationChanged(newConfig);

  
// }

  


  
// @Override

  
// public boolean onCreateOptionsMenu(Menu menu) {

  
// MenuInflater inflater = getMenuInflater();

  
// inflater.inflate(R.menu.menu_main,menu);

  
// return super.onCreateOptionsMenu(menu);

  
// }

  


  
// @Override

  
// public boolean onPrepareOptionsMenu(Menu menu) {

  
//// boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);

  
//// menu.findItem(R.id.action_websearch).setVisible(!drawerOpen);

  
//// return super.onPrepareOptionsMenu(menu);

  
// return true;

  
// }

  


  
@Override

  
public boolean onOptionsItemSelected(MenuItem item) {

  
// The action bar home/up action should open or close the drawer.

  
// ActionBarDrawerToggle will take care of this.

  
Log.v("haha",""+item.getItemId());

  
if (mDrawerToggle.onOptionsItemSelected(item)) {

  
return true;

  
}

  
// Handle action buttons

  
switch(item.getItemId()) {

  
case R.id.action_settings:

  


  
return true;

  
default:

  
return super.onOptionsItemSelected(item);

  
}

  
}

  


  


  
}
 

 

  
<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">

  
<!--<Button-->

  
<!--android:id="@+id/btn"-->

  
<!--android:layout_width="match_parent"-->

  
<!--android:layout_height="wrap_content"-->

  
<!--android:text="open"-->

  
<!--/>-->

  
</FrameLayout>

  


  
<!-- The navigation drawer -->

  
<ListView android:id="@+id/left_drawer"

  
android:layout_width="240dp"

  
android:layout_height="match_parent"

  
android:layout_gravity="start"

  
android:choiceMode="singleChoice"

  
android:divider="@android:color/transparent"

  
android:dividerHeight="0dp"

  
android:background="#FFFFFF"/>

  
</android.support.v4.widget.DrawerLayout>