Android的工作室 - 可以添加指向从设计师的片段标签？ [英] Android studio - is possible to add tabs pointing to fragments from designer?

问题描述

我试图增加对主要活动的标签应指向几个片段。

i'm trying to add tabs for main activity which should pointing to several fragments.

是否有可能在Android Studio设计？

Is it possible from Android Studio designer?

我加入像下面图片我的活动布局tabhost，但真实的设备没有显示。

I added into my activity layout tabhost like on image below, but on real device is not displayed.

我怎样才能解决呢？

感谢您的任何意见。

推荐答案

我将减少一个Button我的例子中，你应该能够相乘。我也切出unneccessarry的东西，如利润率等等.​​.....如果你有问题，只是告诉我，我会很乐意帮助你：

I will reduce my example on one Button, you should be able to multiply it. I also cut out unneccessarry stuff like margins etc... If you have problems, just tell me and I will gladly help you out:

MainActivity.java - openHome方法是有趣的。

MainActivity.java - openHome method is interesting

public class MainActivity extends Activity implements HomeFragment.OnFragmentInteractionListener
{
    FragmentManager fragmentManager = getFragmentManager();

    HomeFragment homeFragment;


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

        homeFragment = new HomeFragment();

        fragmentManager.beginTransaction().add(R.id.mainFrame, homeFragment).commit();
    }

    public void openHome(View view)
    {
        homeFragment = new HomeFragment();
        fragmentManager.beginTransaction().replace(R.id.mainFrame, homeFragment).commit();
    }

    @Override
    public void onFragmentInteractionHome(Uri uri)
    {
        Toast.makeText(this, "Success", Toast.LENGTH_SHORT).show();//only to check, can be removed (the content, the method must be implemented!!!!!!!!!!!!!!!)
    }
}

activity_main.xml中

activity_main.xml

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    tools:ignore="MergeRootFrame" >

    <FrameLayout
        android:id = "@+id/mainFrame"
        android:layout_width = "match_parent"
        android:layout_height = "match_parent"
        android:layout_marginBottom = "@dimen/bottom_Main_Tabs">
        </FrameLayout>

    <LinearLayout
        android:layout_width = "match_parent"
        android:layout_height = "@dimen/bottom_Main_Tabs"
        android:layout_gravity = "bottom"
        >

        <ImageButton
            android:id = "@+id/bottomButton_home"
            android:layout_height = "match_parent"
            android:layout_width = "0dp"
            android:layout_weight = "1.0"
            android:background = "@drawable/ic_home_white"
            android:onClick = "openHome"
            />
    </LinearLayout>
</FrameLayout>

HomeFragment.java - 如果你创建一个片段，这一切都将被自动生成加评论，我切出！有趣的是只在底部的内界面!!!

HomeFragment.java - if you create a fragment, all this will be autogenerated plus comments, which I cut out.!!! Interesting is only the inner interface at the bottom!!!:

import android.app.Activity;
import android.app.Fragment;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;


public class HomeFragment extends Fragment
{
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    private String mParam1;
    private String mParam2;

    private OnFragmentInteractionListener mListener;

    public static HomeFragment newInstance(String param1, String param2)
    {
        HomeFragment fragment = new HomeFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    public HomeFragment()
    {
        // Required empty public constructor
    }

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        if (getArguments() != null)
        {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState)
    {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_home, container, false);
    }

    // TODO: Rename method, update argument and hook method into UI event
    public void onButtonPressed(Uri uri)
    {
        if (mListener != null)
        {
            mListener.onFragmentInteractionHome(uri);
        }
    }

    @Override
    public void onAttach(Activity activity)
    {
        super.onAttach(activity);
        try
        {
            mListener = (OnFragmentInteractionListener) activity;
        }
        catch (ClassCastException e)
        {
            throw new ClassCastException(activity.toString()
                    + " must implement OnFragmentInteractionListener");
        }
    }

    @Override
    public void onDetach()
    {
        super.onDetach();
        mListener = null;
    }

    public interface OnFragmentInteractionListener
    {
        // TODO: Update argument type and name
        public void onFragmentInteractionHome(Uri uri);
    }

}

fragment_home.xml

fragment_home.xml

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/home_fragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/blue"
    tools:context="com.domain.app.HomeFragment">

    <!-- TODO: Update blank fragment layout -->
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="50dp"
        android:textSize="100sp"
        android:text="Home" />

</FrameLayout>

我tthink这是所有。如果没有，只是告诉我：）

I tthink that is all. If not, just tell me :)

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