Android(安卓)DataBinding ViewPage + Fragment 封装
16lz
2021-01-24
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; }}<?xml version="1.0" encoding="utf-8"?> 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：
<?xml version="1.0" encoding="utf-8"?> 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(); }} 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
<?xml version="1.0" encoding="utf-8"?> 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
<?xml version="1.0" encoding="utf-8"?> 大概就是这些了,欢迎大家指正！
源码下载：http://download.csdn.net/detail/zmadmad/9500247
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