android脚步---UI界面修改，关于activity中增加按钮和监听

	case R.id.checkframe:
			    if (mCurrentModule instanceof PhotoModule) {
			        PhotoUI ui = ((PhotoModule) mCurrentModule).getPhotoUIInstance();
			        if (ui != null) {
			            PhotoFrameUpdateManager photoFrameManager = 
			                    new PhotoFrameUpdateManager(CameraActivity.this, ui);
			            if (photoFrameManager.isNetworkConnected()) {
//			                photoFrameManager.checkUpdate();
			            	startActivityForResult(new Intent(CameraActivity.this, KuangDownloadActivity.class), REQ_CODE_DOWNLOAD);
			            } else {
			                photoFrameManager.showNetworkDialog();
			            }
			        }
			    }
			    break;

  <RelativeLayout style="@style/KuangTopbar" >
        <TextView
            style="@style/KuangTopbar_text"
            android:text="@string/photoframe_check" />
    <Button
        android:id="@+id/backbutton2"
        android:layout_width="@dimen/about_title_height"
        android:layout_height="@dimen/about_title_height"
        android:layout_centerVertical="true"
        android:layout_marginLeft="@dimen/about_title_btn_margin_left"
        android:background="@drawable/about_back" />
    </RelativeLayout>

  <style name="KuangTopbar">
        <item name="android:gravity">center_vertical</item>
        <item name="android:orientation">horizontal</item>
        <item name="android:background">@drawable/photoframe_title</item>
        <item name="android:paddingLeft">5dip</item>
        <item name="android:paddingRight">5dip</item>
        <item name="android:layout_width">fill_parent</item>
        <item name="android:layout_height">48dp</item>
    </style>

protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.kuang_download_main);
		kuangList = (ListView) findViewById(R.id.viewBookList);
		adapter = new KuangItemAdapter(this,kuangList);
		loadStateView = (LoadStateView) findViewById(R.id.downloadStatusBox);
		Button backbutton2 = (Button) findViewById(R.id.backbutton2);
		backbutton2.setOnClickListener(new View.OnClickListener(){
        	public void onClick(View v) {
        		
        		  finish();
    				
        		}
		});