Java 从CardView中的按钮初始化正确的类

编辑：在此帖子中找到我的答案：

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我试图从CardView中的一个按钮初始化函数

<TextView
    android:id="@+id/title"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textSize="24sp"

<Button
    android:id="@+id/btnStart"
    style="?android:attr/borderlessButtonStyle"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:onClick="startFunctionClick"
    android:text="START" />

我试图在同一张卡上使用TextView来标识要初始化的类。但是吐司将只输出“人脸检测”

有什么不同的想法吗？

所以我发现它完美地回答了我的问题。我需要做的是创建一个自定义OnClickListener接口，并在构造函数中提供它的一个实例

public interface OnItemClickListener {
    public void onItemClick(View v, int pos);
}

public MainMenuAdapter(Context context, String[] dataSet, Boolean isNative, OnItemClickListener mOnItemClickListener){
    this.context = context;
    this.dataSet = dataSet;
    this.isNative = isNative;
    this.mOnItemClickListener = mOnItemClickListener;
}

接下来，我将clickListener添加到onBindViewHolder方法中的正确对象中

cardViewHolder.btnStart.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mOnItemClickListener.onItemClick(v, position);
        }
    });

在活动中，我在初始化适配器时传递了MClickListener

mAdapter = new MainMenuAdapter(MainMenuActivity.this, dataSet, isNative, new MainMenuAdapter.OnItemClickListener(){
        @Override
        public void onItemClick(View v, int pos) {
            Intent intent = new Intent();
            if (pos == 0){
                intent = new Intent(MainMenuActivity.this, FaceDetection.class);
            } else if (pos == 1){
                intent = new Intent(MainMenuActivity.this, CircleDetection.class);
            } else if (pos == 2){
                intent = new Intent(MainMenuActivity.this, foregroundDetection.class);
            } else if (pos == 3){
                intent = new Intent(MainMenuActivity.this, Drawtivity.class);
            } else {
                Toast.makeText(getApplicationContext(), "Invalid function", Toast.LENGTH_SHORT).show();
            }
            startActivity(intent);
        }
    });

cardViewHolder.btnStart.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mOnItemClickListener.onItemClick(v, position);
        }
    });

mAdapter = new MainMenuAdapter(MainMenuActivity.this, dataSet, isNative, new MainMenuAdapter.OnItemClickListener(){
        @Override
        public void onItemClick(View v, int pos) {
            Intent intent = new Intent();
            if (pos == 0){
                intent = new Intent(MainMenuActivity.this, FaceDetection.class);
            } else if (pos == 1){
                intent = new Intent(MainMenuActivity.this, CircleDetection.class);
            } else if (pos == 2){
                intent = new Intent(MainMenuActivity.this, foregroundDetection.class);
            } else if (pos == 3){
                intent = new Intent(MainMenuActivity.this, Drawtivity.class);
            } else {
                Toast.makeText(getApplicationContext(), "Invalid function", Toast.LENGTH_SHORT).show();
            }
            startActivity(intent);
        }
    });