Android DataBinding ViewPage + Fragment 封装

最近在使用  DataBinding ，顺便弄下ViewPage +  Fragment 

直接上代码，先看DockerItem的代码

public class DockerItem {

    public static enum ItemType{
        Home,Classfy,Personal
    }

    ItemType type;
    int iconRes;
    int textRes;

    public DockerItem(int textRes,int iconRes,ItemType type){
        this.textRes = textRes;
        this.iconRes = iconRes;
        this.type = type;
    }

    public ItemType getType() {
        return type;
    }

    public void setType(ItemType type) {
        this.type = type;
    }

    public int getIconRes() {
        return iconRes;
    }

    public void setIconRes(int iconRes) {
        this.iconRes = iconRes;
    }

    public int getTextRes() {
        return textRes;
    }

    public void setTextRes(int textRes) {
        this.textRes = textRes;
    }
}

应该都明白什么意思吧，下面是item的布局

Image就是底部docker的图片，textView是文字说明

下面到dockerBar dockerBar的代码有点多，比较适用

public class DockerBar extends LinearLayout{

    DockerBarBinding mDockerBarBinding;
    private OnItemClickListener mOnItemClickListener;
    List mItems = new ArrayList<>();


    public interface  OnItemClickListener{
        void onItemClick(DockerBar dockerBar,DockerItem item);
    }


    public DockerBar(Context context) {
        this(context,null);
    }

    public DockerBar(Context context, AttributeSet attrs) {
        this(context, attrs,0);
    }

    public DockerBar(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initViews();
    }
    public void setmOnItemClickListener(OnItemClickListener l){
        mOnItemClickListener = l;
    }
    private void init(){
        DockerItem item = new DockerItem(R.string.home,R.drawable.dockbar_home_selector,DockerItem.ItemType.Home);
        mItems.add(item);
        item = new DockerItem(R.string.classify,R.drawable.dockbar_classify_selector,DockerItem.ItemType.Classfy);
        mItems.add(item);
        item = new DockerItem(R.string.personal,R.drawable.dockbar_personal_selector,DockerItem.ItemType.Personal);
        mItems.add(item);
    }
    private  void initViews(){
        init();
        LayoutInflater infaInflater = LayoutInflater.from(getContext());
        System.out.print(infaInflater);
        mDockerBarBinding = DataBindingUtil.inflate(infaInflater,R.layout.docker_bar,this,true);
        mDockerBarBinding.dockerList.removeAllViews();
        for (int i=0;i

注意，这个属于自定义的一个layout

dockerBar的XML布局文件如下：

public class FragAdapter extends FragmentPagerAdapter {

    List mFragments = new ArrayList<>();

    public FragAdapter(FragmentManager fm){
        super(fm);
        mFragments.add(new HomeFragment());
        mFragments.add(new ClassifyFragment());
        mFragments.add(new PersonalFragment());
    }

    @Override
    public Fragment getItem(int position) {
        return mFragments.get(position);
    }

    @Override
    public int getCount() {
        return mFragments.size();
    }
}

MainActivity 

public class MainActivity extends AppCompatActivity {

    ActivityMainBinding mBinding;
    FragAdapter mAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mBinding = DataBindingUtil.setContentView(this,R.layout.activity_main);
        setupViews();
    }

    private void setupViews() {
        mAdapter = new FragAdapter(getSupportFragmentManager());
        mBinding.viewPager.setAdapter(mAdapter);
        mBinding.viewPager.setOnPageChangeListener(mOnPageChangeListener);
        mBinding.dockerBar.setmOnItemClickListener(mOnItemClickListener);
    }

    private ViewPager.OnPageChangeListener mOnPageChangeListener = new ViewPager.OnPageChangeListener() {
        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

        }

        @Override
        public void onPageSelected(int position) {
            mBinding.dockerBar.setSelection(position);
        }

        @Override
        public void onPageScrollStateChanged(int state) {

        }
    };

    private DockerBar.OnItemClickListener mOnItemClickListener = new DockerBar.OnItemClickListener() {
        @Override
        public void onItemClick(DockerBar dockerBar, DockerItem item) {
            switch (item.getType()){
                case Home:
                    mBinding.viewPager.setCurrentItem(0,false);
                    break;
                case Classfy:
                    mBinding.viewPager.setCurrentItem(1,false);
                    break;
                case Personal:
                    mBinding.viewPager.setCurrentItem(2,false);
                    break;
            }
        }
    };
}

XML 布局

又写了一个BaseFragment  

public class BaseFragment extends Fragment   {
    protected ViewGroup mViewGroup;
    protected Context mContext;
    protected Activity mActivity;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mActivity = getActivity();
        mContext = getActivity().getApplicationContext();
    }

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

    public void onResume() {
        super.onResume();
    }

    public void onPause() {
        super.onPause();
    }


}

最后就是一个简单的Fragment 了继承Base

public class HomeFragment extends BaseFragment   {
    private static final String TAG = "HomeFragment";



    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        if (mViewGroup == null) {
            HomeFragmentBinding binding = HomeFragmentBinding.inflate(inflater, null, false);
            mViewGroup = (ViewGroup) binding.getRoot();
        }
        return super.onCreateView(inflater, container, savedInstanceState);
    }



}

布局

大概就是这些了,欢迎大家指正！

源码下载：http://download.csdn.net/detail/zmadmad/9500247