android {
        ...
        viewBinding {
            enabled = true
        }
    }

如果您希望在生成綁定類(lèi)時(shí)忽略某個(gè)布局文件酪惭，請(qǐng)將 tools:viewBindingIgnore="true" 屬性添加到相應(yīng)布局文件的根視圖中：

<LinearLayout
            ...
            tools:viewBindingIgnore="true" >
        ...
    </LinearLayout>

使用

為某個(gè)模塊啟用視圖綁定功能后昂勉，系統(tǒng)會(huì)為該模塊中包含的每個(gè) XML 布局文件生成一個(gè)綁定類(lèi)。每個(gè)綁定類(lèi)均包含對(duì)根視圖以及具有 ID 的所有視圖的引用鼻百。系統(tǒng)會(huì)通過(guò)以下方式生成綁定類(lèi)的名稱(chēng)：將 XML 文件的名稱(chēng)轉(zhuǎn)換為駝峰式大小寫(xiě)，并在末尾添加“Binding”一詞摆尝。

activity

比如的布局叫activity_main,生成的bingding名稱(chēng)就是 ActivityMainBinding

public class MainActivity2 extends AppCompatActivity  {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        ActivityMainBinding binding = ActivityMainBinding.inflate(getLayoutInflater());
        LinearLayout root = binding.getRoot();
        setContentView(root);
        binding.hwDel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(MainActivity2.this,"del",Toast.LENGTH_SHORT).show();
            }
        });       

    }

fragment

布局名稱(chēng)為 fragment_blank温艇，這里有個(gè)注意點(diǎn)，如果直接用標(biāo)簽類(lèi)型導(dǎo)入fragment堕汞，fragment也要加個(gè)id勺爱。

<fragment
    android:layout_width="match_parent"
    android:id="@+id/text_fragment"
    android:name="com.leo.tpnsdemos.BlankFragment"
    android:layout_height="match_parent"/>

public class BlankFragment extends Fragment {
    private FragmentBlankBinding binding;

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

    @Override
    public void onViewCreated(@NonNull @NotNull View view, @Nullable @org.jetbrains.annotations.Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        binding.btnAdd.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                binding.textFragment.setText(new Random().nextInt(1000) + "");
            }
        });
    }

Adapter 使用

class ViewBindAdapter extends RecyclerView.Adapter<ViewBindAdapter.ViewBindHolder> {


    @NonNull
    @NotNull
    @Override
    public ViewBindHolder onCreateViewHolder(@NonNull @NotNull ViewGroup parent, int viewType) {
        ItemRecycleBinding binding = ItemRecycleBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false);
        return new ViewBindHolder(binding);
    }

    @Override
    public void onBindViewHolder(@NonNull @NotNull ViewBindHolder holder, int position) {
        holder.binding.tvButtom.setText("");

    }

    @Override
    public int getItemCount() {
        return 0;
    }


    static class ViewBindHolder extends RecyclerView.ViewHolder {


        public ItemRecycleBinding binding;
        
        public ViewBindHolder(@NonNull @NotNull ItemRecycleBinding binding) {
            super(binding.getRoot());
            this.binding = binding;
        }


    }
}

自定義View

//找到對(duì)應(yīng)的View的布局
 var binding: ViewProgressBinding =
        ViewProgressBinding.inflate(LayoutInflater.from(getContext()), this, true)