Android tab页制作

全屏启动页
activity_launcher
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    android:background="@android:color/white"
    tools:context="com.atguigu.android.LauncherActivity">

    <ImageView
        android:id="@+id/iv_icon"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:src="@drawable/atguigu_logo" />

    <TextView
        android:textColor="@android:color/black"
        android:textSize="20sp"
        android:layout_centerHorizontal="true"
        android:layout_below="@id/iv_icon"
        android:text="尚硅谷Android世界..."
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</RelativeLayout>

首页标题栏
titlebar
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="50dp"
    android:background="@android:color/holo_blue_light"
    android:gravity="center"
    android:orientation="horizontal">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="尚硅谷知识库"
        android:textColor="@android:color/white"
        android:textSize="20sp" />

</LinearLayout>

tab页面
activity_main

选择器例1

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="false" android:drawable="@drawable/ic_tab_video"/>
<item android:state_checked="true" android:drawable="@drawable/ic_tab_video_press"/>

</selector>

bottom_textcolor_drawable_selector
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="false" android:color="#363636"/>
<item android:state_checked="true" android:color="#3097FD"/>

</selector>

自定义style

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

    <style name="bottom_tag_style" >
        <!-- Customize your theme here. -->
        <item name="android:layout_width">wrap_content</item>
        <item name="android:layout_height">wrap_content</item>
        <item name="android:layout_weight">1</item>

        <item name="android:button">@android:color/transparent</item>
        <item name="android:drawablePadding">3dp</item>
        <item name="android:gravity">center</item>

        <item name="android:textColor">@drawable/bottom_textcolor_drawable_selector</item>
        <item name="android:textSize">10sp</item>
    </style>

</resources>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <!--标题栏-->
    <include layout="@layout/titlebar" />

    <!--FrameLayout-->

    <FrameLayout
        android:id="@+id/fl_content"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

    <!--底部的RadioGroup-->
    <RadioGroup
        android:id="@+id/rg_main"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#11000000"
        android:gravity="center_vertical"
        android:orientation="horizontal"
        android:padding="5dp">

        <RadioButton
            android:id="@+id/rb_common_frame"
            style="@style/bottom_tag_style"
            android:drawableTop="@drawable/rb_common_frame_drawable_selector"
            android:text="常用框架"

            />

        <RadioButton
            android:id="@+id/rb_thirdparty"
            style="@style/bottom_tag_style"
            android:drawableTop="@drawable/rb_thirdparty_drawable_selector"
            android:text="第三方"

            />

        <RadioButton
            android:id="@+id/rb_custom"
            style="@style/bottom_tag_style"
            android:drawableTop="@drawable/rb_custom_drawable_selector"
            android:text="自定义控件" />

        <RadioButton
            android:id="@+id/rb_other"
            style="@style/bottom_tag_style"
            android:drawableTop="@drawable/rb_other_drawable_selector"
            android:text="其他" />

    </RadioGroup>

</LinearLayout>

listview fragment
fragment_common_fragmen.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent">

    <ListView
        android:id="@+id/listview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></ListView>

</RelativeLayout>

启动activity
public class LauncherActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_launcher);
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                //在主线程中执行
                startMainActivity();
            }
        }, 2000);
    }

    /**
     * 启动主页面
     */
    private void startMainActivity() {
        Intent intent = new Intent(this,MainActivity.class);
        startActivity(intent);
        //关闭当前页面
        finish();

    }
}

首页面
public class MainActivity  extends FragmentActivity{

    private RadioGroup mRg_main;
    private List<BaseFragment> mBaseFragment;

    /**
     * 选中的Fragment的对应的位置
     */
    private int position;

    /**
     * 上次切换的Fragment
     */
    private Fragment mContent;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //初始化View
        initView();
        //初始化Fragment
        initFragment();
        //设置RadioGroup的监听
        setListener();
    }

    private void setListener() {
        mRg_main.setOnCheckedChangeListener(new MyOnCheckedChangeListener());
        //设置默认选中常用框架
        mRg_main.check(R.id.rb_common_frame);
    }

    class MyOnCheckedChangeListener implements RadioGroup.OnCheckedChangeListener {

        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {
            switch (checkedId){
                case R.id.rb_common_frame://常用框架
                    position = 0;
                    break;
                case R.id.rb_thirdparty://第三方
                    position = 1;
                    break;
                case R.id.rb_custom://自定义
                    position = 2;
                    break;
                case R.id.rb_other://其他
                    position = 3;
                    break;
                default:
                    position = 0;
                    break;
            }

            //根据位置得到对应的Fragment
            BaseFragment to = getFragment();
            //替换
            switchFrament(mContent,to);

        }
    }

    /**
     *
     * @param from 刚显示的Fragment,马上就要被隐藏了
     * @param to 马上要切换到的Fragment，一会要显示
     */
    private void switchFrament(Fragment from,Fragment to) {
        if(from != to){
            mContent = to;
            FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
            //才切换
            //判断有没有被添加
            if(!to.isAdded()){
                //to没有被添加
                //from隐藏
                if(from != null){
                    ft.hide(from);
                }
                //添加to
                if(to != null){
                    ft.add(R.id.fl_content,to).commit();
                }
            }else{
                //to已经被添加
                // from隐藏
                if(from != null){
                    ft.hide(from);
                }
                //显示to
                if(to != null){
                    ft.show(to).commit();
                }
            }
        }

    }

//    private void switchFrament(BaseFragment fragment) {
//        //1.得到FragmentManger
//        FragmentManager fm = getSupportFragmentManager();
//        //2.开启事务
//        FragmentTransaction transaction = fm.beginTransaction();
//        //3.替换
//        transaction.replace(R.id.fl_content, fragment);
//        //4.提交事务
//        transaction.commit();
//    }

    /**
     * 根据位置得到对应的Fragment
     * @return
     */
    private BaseFragment getFragment() {
        BaseFragment fragment = mBaseFragment.get(position);
        return fragment;
    }

    private void initFragment() {
        mBaseFragment = new ArrayList<>();
        mBaseFragment.add(new CommonFrameFragment());//常用框架Fragment
        mBaseFragment.add(new ThirdPartyFragment());//第三方Fragment
        mBaseFragment.add(new CustomFragment());//自定义控件Fragment
        mBaseFragment.add(new OtherFragment());//其他Fragment
    }

    private void initView() {
        setContentView(R.layout.activity_main);
        mRg_main = (RadioGroup) findViewById(R.id.rg_main);

    }
}

public abstract class BaseFragment extends Fragment {
    /**
     * 上下文
     */
    protected Context mContext;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mContext = getActivity();
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return initView();
    }

    /**
     * 强制子类重写，实现子类特有的ui
     * @return
     */
    protected abstract View initView();

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

        initData();
    }

    /**
     * 当孩子需要初始化数据，或者联网请求绑定数据，展示数据的 等等可以重写该方法
     */
    protected void initData() {

    }
}

public class CommonFrameFragment extends BaseFragment {

    private ListView mListView;

    private String[] datas;

    private CommonFrameFragmentAdapter adapter;

    private static final String TAG = CommonFrameFragment.class.getSimpleName();//"CommonFrameFragment"

    @Override
    protected View initView() {
        Log.e(TAG,"常用框架Fragment页面被初始化了...");
        View view = View.inflate(mContext, R.layout.fragment_common_frame,null);
        mListView = (ListView) view.findViewById(R.id.listview);
        mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
               String data =  datas[position];
                Toast.makeText(mContext, "data=="+data, Toast.LENGTH_SHORT).show();
            }
        });
        return view;
    }

    @Override
    protected void initData() {
        super.initData();
        Log.e(TAG, "常用框架Fragment数据被初始化了...");
        //准备数据
        datas = new String[]{"OKHttp", "xUtils3","Retrofit2","Fresco","Glide","greenDao","RxJava","volley","Gson","FastJson","picasso","evenBus","jcvideoplayer","pulltorefresh","Expandablelistview","UniversalVideoView","....."};
        //设置适配器
        adapter = new CommonFrameFragmentAdapter(mContext,datas);
        mListView.setAdapter(adapter);
    }
}

public class CustomFragment extends BaseFragment {

    private static final String TAG = CustomFragment.class.getSimpleName();//"CommonFrameFragment"
    private TextView textView;

    @Override
    protected View initView() {
        Log.e(TAG,"自定义Fragment页面被初始化了...");
        textView = new TextView(mContext);
        textView.setTextSize(20);
        textView.setGravity(Gravity.CENTER);
        textView.setTextColor(Color.RED);
        return textView;
    }

    @Override
    protected void initData() {
        super.initData();
        Log.e(TAG, "自定义Fragment数据被初始化了...");
        textView.setText("自定义页面");
    }
}

public class CommonFrameFragmentAdapter extends BaseAdapter {

    private final Context mContext;
    private final String[] mDatas;

    public CommonFrameFragmentAdapter(Context context,String[] datas){
        this.mContext = context;
        this.mDatas = datas;
    }
    @Override
    public int getCount() {
        return mDatas.length;
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        TextView textView = new TextView(mContext);
        textView.setPadding(10,10,0,10);
        textView.setTextColor(Color.BLACK);
        textView.setTextSize(20);
        textView.setText(mDatas[position]);
        return textView;
    }
}