相关疑难解决方法(0)

我发现消息无法解析方法'getSupportFragmentManager()'我想要片段化为活动.因为我想在选项卡上使用地图滑动.

public class PETAcikarangsukatani extends Fragment {
Context context;

private static final LatLng SUKATANI = new LatLng(-6.171327, 107.178108);
private static final LatLng WRPOJOK = new LatLng(-6.222411, 107.162158);
private static final LatLng PILAR = new LatLng(-6.257033, 107.156472);
private static final LatLng CIKARANG = new LatLng(-6.256073, 107.143984);


GoogleMap googleMap;
final String TAG = "PathGoogleMapActivity";

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View rootView = inflater.inflate(R.layout.activity_path_google_map, container, false);
    context = rootView.getContext();

    SupportMapFragment fm = (SupportMapFragment)getSupportFragmentManager()
            .findFragmentById(R.id.map);
    googleMap = fm.getMap();

我应该在显示DialogFragments时何时使用getFragmentManager(),何时应该使用getSupportFragmentManager()？

目前,我正在显示我的DialogFragments如下:

myDialogFragment.show(getFragmentManager(), "My Dialog Fragment");

是否可以在另一个选项卡布局的选项卡中有一个选项卡布局？我创建了以下图像，以进行更好的说明。所需的滑动运动如图像中所述。

我的主要活动

Xml

<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.design.widget.TabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:tabMode="fixed"
            app:tabGravity="fill"/>
    </android.support.design.widget.AppBarLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"  />

</android.support.design.widget.CoordinatorLayout>

码

public class MainActivity extends AppCompatActivity {

    private TabLayout tabLayout;

    private final static int[] tabIcons = {
            R.drawable.ic_tab_1,
            R.drawable.ic_tab_2,
            R.drawable.ic_tab_3,
            R.drawable.ic_tab_4
    };

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

        ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
        setupViewPager(viewPager);

        tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(viewPager);
        setupTabIcons();
    }

    private void setupTabIcons() {
        tabLayout.getTabAt(0).setIcon(tabIcons[0]);
        tabLayout.getTabAt(1).setIcon(tabIcons[1]);
        tabLayout.getTabAt(2).setIcon(tabIcons[2]);
        tabLayout.getTabAt(3).setIcon(tabIcons[3]);
    }

    private …

我遇到了Map Fragment的问题.错误消息是说无法从Fragment转换为MapFragment.我尝试extends FragmentActivity一起改变,GoogleMap map = ((SupportMapFragment) getSupportFragmentManager()但这导致了我onCreateView的代码行的问题.

import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
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.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class Fragment01 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    return inflater.inflate(R.layout.fragment_01, container, false);

    // Get a handle to the Map Fragment
    GoogleMap map = ((MapFragment) getFragmentManager()
            .findFragmentById(R.id.map)).getMap();

    LatLng sydney = …