我无法打开滑动菜单

时间:2013-07-08 15:04:32

标签: android actionbarsherlock slidingmenu android-sliding

我正在使用Sliding MenuActionBar Sherlock开发一款Android应用,我迷失了。

我已按照此Spanish tutorial将其添加到我的项目中。

这是我的代码:

import com.jeremyfeinstein.slidingmenu.lib.SlidingMenu;
import com.jeremyfeinstein.slidingmenu.lib.app.SlidingFragmentActivity;

import android.os.Bundle;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.view.View;

public class MainActivity extends SlidingFragmentActivity
{
    /**
     * Used as TAG on Log messages.
     */
    public static final String TAG = "MainActivity";
    private SlidingMenu menu;

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Generate keys to encrypt and decrypt user password.
        generateCryptoKeys();

        setBehindContentView(R.layout.menu);

        setSlidingActionBarEnabled(false);        

        menu = new SlidingMenu(this);
        menu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);
        menu.setShadowWidthRes(R.dimen.shadow_width);
        menu.setShadowDrawable(R.drawable.shadow);
        menu.setBehindOffsetRes(R.dimen.slidingmenu_offset);
        menu.setFadeDegree(0.35f);
        menu.attachToActivity(this, SlidingMenu.SLIDING_CONTENT);

        getSupportActionBar().setDisplayShowCustomEnabled(true);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }
}

这是菜单片段:

public class MenuFragment extends ListFragment {

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.menu_list, null);
    }

    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        SampleAdapter adapter = new SampleAdapter(getActivity());
        for (int i = 0; i < 20; i++) {
            adapter.add(new SampleItem("Sample List", android.R.drawable.ic_menu_search));
        }
        setListAdapter(adapter);
    }

    private class SampleItem {
        public String tag;
        public int iconRes;
        public SampleItem(String tag, int iconRes) {
            this.tag = tag; 
            this.iconRes = iconRes;
        }
    }

    public class SampleAdapter extends ArrayAdapter<SampleItem> {

        public SampleAdapter(Context context) {
            super(context, 0);
        }

        public View getView(int position, View convertView, ViewGroup parent) {
            if (convertView == null) {
                convertView = LayoutInflater.from(getContext()).inflate(R.layout.menu_row, null);
            }
            ImageView icon = (ImageView) convertView.findViewById(R.id.row_icon);
            icon.setImageResource(getItem(position).iconRes);
            TextView title = (TextView) convertView.findViewById(R.id.row_title);
            title.setText(getItem(position).tag);

            return convertView;
        }
    }
}

我有几个问题:

1。我是否必须使用碎片?
2.为什么单击主页按钮时无法打开菜单?
请参见下图:

enter image description here

要将Action Bar Sherlock与Sliding菜单集成,我已经这样做了:

Go into the SlidingActivities that you plan on using make them extend Sherlock___Activity instead of ___Activity.

而且,当我这样做时:

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
        toggle();
        return true;
    }
    return super.onOptionsItemSelected(item);
}

我收到此错误:

Cannot override the final method from SherlockFragmentActivity

2 个答案:

答案 0 :(得分:3)

使用类似的东西:

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
        menu.toggle();

        return true;
    }

答案 1 :(得分:2)

  
      
  1. 我必须使用片段吗?
  2.   

是的,该库是为它而构建的。另外,没有两个Activity可以同时在前台。

  

2。为什么我点击主页按钮时无法打开菜单?

这是因为该按钮不打算打开滑动菜单。

getSupportActionBar().setDisplayHomeAsUpEnabled(true);

将启用应用图标作为后退按钮。这从堆栈返回。另见Navigation。你的slindermenu是一个片段放在你的活动的一边,因此它们在同一时刻存在,因此不与任何导航无关。

要打开菜单,您需要致电:

 SlidingMenu sm = getSlidingMenu();
     sm.toggle();//or .open();

如果您要覆盖onOptionsItemSelected,则需要:

extends SlidingFragmentActivity

修改滑动菜单库。让所有片段从sherlock库相关片段扩展。 (顺便说一下,这是用设置ActionBarSherlock 下的docs写的。)。