无法将Google地图添加到导航抽屉片段

时间:2014-10-28 10:53:34

标签: android google-maps navigation-drawer

我正在尝试在Android中创建应用,并且我想在导航抽屉中添加地图。抽屉选项打开新片段但无法使Map片段起作用。

MainActivity.java 按以下方式设置片段:

/**
 * Diplaying fragment view for selected nav drawer list item
 * */
private void displayView(int position) {
    // update the main content by replacing fragments
    Fragment fragment = null;
    switch (position) {
    case 0:
        fragment = new HomeFragment();
        break;
    case 1:
        fragment = new PoliFragment();
        break;
    case 2:
        fragment = new TilefonaFragment();
        break;
    case 3:
        fragment = new DromologiaFragment();
        break;
    case 4:
        fragment = new XartisFragment();
        break;

    default:
        break;
    }

    if (fragment != null) {
        FragmentManager fragmentManager = getFragmentManager();
        fragmentManager.beginTransaction()
                .replace(R.id.frame_container, fragment).commit();

        // update selected item and title, then close the drawer
        mDrawerList.setItemChecked(position, true);
        mDrawerList.setSelection(position);
        //setTitle(navMenuTitles[position]);
        mDrawerLayout.closeDrawer(mDrawerList);
    } else {
        // error in creating fragment
        Log.e("MainActivity", "Error in creating fragment");
    }
}

地图片段( XartisFragment.java )如下:

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;


public class XartisFragment extends Fragment {
private GoogleMap map;

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.map_layout,container, false);

    map =   ((SupportMapFragment) getActivity().getSupportFragmentManager().findFragmentById(R.id.map)).getMap();//((SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map)).getMap();
    return rootView;
}


}

map_layout.xml 如下:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >

<fragment
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="8dp" />


</RelativeLayout> 

当我尝试运行它时,我得到:

Error:(178, 15) error: incompatible types: XartisFragment cannot be converted to Fragment

它将错误指向MainActivity.java中的这一行

fragment = new XartisFragment();

关于要加载什么以改变它的任何想法?

1 个答案:

答案 0 :(得分:1)

尝试使用getSupportFragmentManager()代替getFragmentManager()

确保两个地方都导入相同的Fragment类。感觉有点像在一个地方你导入android.app.Fragment(本机API Level 11版本的片段),在其他地方你导入android.support.v4.app.Fragment(来自Android支持的片段)封装)。