Android Studio:如何创建滑动标签导航?

时间:2015-02-20 00:30:45

标签: java android android-studio

我对Android开发还很陌生,所以我有点失落。我正在尝试使用滑动标签类型导航制作应用程序以进入不同的屏幕。

我一直在谷歌搜索它几个小时,我似乎找不到任何打破它足以让我理解的东西。从我读到的,我将不得不使用片段?现在,我只是将我的所有屏幕都作为单独的活动,如果我想这样做,我可能不得不改变它,对吗?

除了搞乱xml之外,我还没有真正编写任何代码,所以我真的没什么可说的。

无论如何,如果有人能向我解释如何做到这一点会很棒!

2 个答案:

答案 0 :(得分:0)

使用新项目向导并选择“选项卡式活动”有什么问题?

tabbed activity

答案 1 :(得分:0)

您可以将 Viewpager PagerTitleStrip 一起使用..

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.myapp.ContainerFragment">

<!-- TODO: Update blank fragment layout -->
<android.support.v4.view.ViewPager
    android:id="@+id/mPager"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v4.view.PagerTitleStrip
        android:id="@+id/pager_title_strip"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="top"
        android:background="@android:color/transparent"
        android:textColor="#fff"
        android:paddingTop="4dp"
        android:paddingBottom="4dp" />


</android.support.v4.view.ViewPager>

这是ContainerFragment ..

import android.os.Bundle;
import android.app.Fragment;
import android.support.annotation.Nullable;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;



/**
 * A simple {@link Fragment} subclass.
 */
public class ContainerFragment extends    android.support.v4.app.Fragment {

ViewPager mViewPager;
PagerAdapter pagerAdapter;

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

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

@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    pagerAdapter = new PagerAdapter(getChildFragmentManager(), this);
    mViewPager = (ViewPager) getActivity().findViewById(R.id.mPager);
    mViewPager.setAdapter(pagerAdapter);
    }

}

这是适配器..

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.util.Log;



public class PagerAdapter extends FragmentStatePagerAdapter {



public PagerAdapter(FragmentManager fm) {
    super(fm);
   }

@Override
public Fragment getItem(int position) {
    Fragment fragment = null;
    switch (position) {
        case 0:
            fragment = new FirstFrag();
            break;
        case 1:
            fragment = new SecondFrag();
            break;
        case 2:
            fragment = new ThirdFrag();
            break;
        default:
            break;
    }

    return fragment;
}


@Override
public int getCount() {
    return 3;
}

@Override
public CharSequence getPageTitle(int position) {
    if (position == 0) {
        return "FIRST FRAG";
    } else if (position == 1) {
        return "SECOND FRAG";
    } else if (position == 2) {
        return "THIRD FRAG";
    } else {
        return super.getPageTitle(position);
    }
  }
}