Java 浮动操作按钮单击事件不工作

我在以下布局文件活动\注册表中有一个浮动操作按钮：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <FrameLayout
        android:paddingTop="70dp"
        android:layout_width="320dp"
        android:layout_height="400dp"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true">

        <android.support.v7.widget.CardView
            android:id="@+id/cv_RegisterAdd"
            app:cardBackgroundColor="#009688"
            android:layout_marginTop="10dp"
            android:layout_gravity="center_horizontal"
            android:layout_width="match_parent"
            android:layout_height="320dp"
            app:cardCornerRadius="6dp"
            app:cardElevation="3dp"
            app:cardUseCompatPadding="true"
            >
            <LinearLayout
                android:orientation="vertical"
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <TextView
                    android:layout_marginTop="50dp"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="50dp"
                    android:text="REGISTER"
                    android:textColor="#FFFFFF"
                    android:textAppearance="?android:attr/textAppearanceMedium"
                    android:textStyle="bold"
                    />
                <LinearLayout
                    android:layout_marginTop="10dp"
                    android:paddingStart="50dp"
                    android:paddingEnd="30dp"
                    android:layout_width="match_parent"
                    android:layout_height="40dp">
                    <android.support.design.widget.TextInputLayout
                        android:textColorHint="#f0f7f4"
                        android:layout_width="match_parent"
                        android:theme="@style/TextLabel"
                        android:layout_height="wrap_content">
                        <EditText
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:hint="Username"
                            android:textColor="#f0f7f4"
                            android:id="@+id/txtCurUsername"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:inputType="textPersonName"
                            android:background="@drawable/selector_bg_edit_2"
                            android:textCursorDrawable="@drawable/bg_input_cursor_2"
                            android:paddingBottom="2dp"
                            />
                    </android.support.design.widget.TextInputLayout>
                </LinearLayout>
                <LinearLayout
                    android:paddingStart="50dp"
                    android:paddingEnd="30dp"
                    android:orientation="horizontal"
                    android:layout_width="match_parent"
                    android:layout_height="40dp">
                    <android.support.design.widget.TextInputLayout

                        android:textColorHint="#FFFFFF"
                        android:theme="@style/TextLabel"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content">
                        <EditText
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:hint="Password"
                            android:textColor="#f0f7f4"
                            android:id="@+id/txtNewPassword"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:inputType="textPassword"
                            android:background="@drawable/selector_bg_edit_2"
                            android:textCursorDrawable="@drawable/bg_input_cursor_2"
                            android:paddingBottom="2dp"
                            />
                    </android.support.design.widget.TextInputLayout>
                </LinearLayout>
                <LinearLayout
                    android:paddingStart="50dp"
                    android:paddingEnd="30dp"
                    android:orientation="horizontal"
                    android:layout_width="match_parent"
                    android:layout_height="40dp">
                    <android.support.design.widget.TextInputLayout

                        android:textColorHint="#f0f7f4"
                        android:theme="@style/TextLabel"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content">
                        <EditText
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textColor="#f0f7f4"
                            android:hint="Repeat Password"
                            android:id="@+id/txtRepeatPassword"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:inputType="textPassword"
                            android:background="@drawable/selector_bg_edit_2"
                            android:textCursorDrawable="@drawable/bg_input_cursor_2"
                            android:paddingBottom="2dp"
                            />
                    </android.support.design.widget.TextInputLayout>
                </LinearLayout>
                <Button
                    android:layout_marginTop="20dp"
                    android:layout_gravity="center_horizontal"
                    android:stateListAnimator="@drawable/state_list_animator_z"
                    android:id="@+id/btn_Register"
                    android:text="REGISTER"
                    android:textColor="#009688"
                    android:textAppearance="?android:attr/textAppearanceMedium"
                    android:layout_width="200dp"
                    android:layout_height="40dp"
                    android:background="@drawable/register_btnshape"
                    >
                </Button>

            </LinearLayout>
        </android.support.v7.widget.CardView>
        <android.support.design.widget.FloatingActionButton
            android:id="@+id/fb_Cancel"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:fabSize="normal"
            android:src="@drawable/plus_x"
            android:transitionName="loginFab"
            android:layout_gravity="center_horizontal|top" />

    </FrameLayout>


</RelativeLayout>

---

用

@OnClick

注释的方法应该在

onCreate

之外

@Override 
    public void onCreate(@Nullable Bundle savedInstanceState)
    { 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        ButterKnife.bind(this);

        //--------------------------TODO---------------------// 
        //----------Set a click event for the floating action button 


    } 

 @OnClick({R.id.btn_Login, R.id.fb_Register}) 
        public void onClick(View view)
        { 

        } 

---

我有我的

@Onclick

注释方法，用于在onCreate（）外部浮动ActionButton。。但它不起作用

@Bind

注释起作用，但对于我添加ButterKnife.Bind（这个）的

@Onclick

；onCreate（）对我来说很有用。

@Override 
    public void onCreate(@Nullable Bundle savedInstanceState)
    { 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        ButterKnife.bind(this);

        //--------------------------TODO---------------------// 
        //----------Set a click event for the floating action button 


    } 

 @OnClick({R.id.btn_Login, R.id.fb_Register}) 
        public void onClick(View view)
        { 

        } 

@OnClick(R.id.take_photo) void openCameraIntent()
{
    openCameraIntent1();
}

@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_camera);
    initialize();
    mFusedLocationClient = LocationServices.getFusedLocationProviderClient(getApplicationContext());
}

private void initialize()
{
    btnSavePhoto = findViewById(R.id.btn_save);
    photoView = findViewById(R.id.imageView);
    photoViewUnuse = findViewById(R.id.imageViewUnuse);
    previewPhotoText = findViewById(R.id.preview_text);

    btnSavePhoto.setOnClickListener(view -> submitDataToServer());

    ButterKnife.bind(this);
}