我在以下布局文件activity_register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>
在活动中，我在浮动操作按钮上设置了Click事件。我一直在调试和检查事件是否被触发，并且从未触发click事件。 RegisterActivity代码如下：
public class RegisterActivity extends AppCompatActivity
{
@BindView(R.id.fb_Cancel)
FloatingActionButton mClose_fb;
@BindView(R.id.btn_Register)
Button mRegister_btn;
@BindView(R.id.cv_RegisterAdd)
CardView mRegister_cv;
@Override
public void onCreate(@Nullable Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
ButterKnife.bind(this);
getSupportActionBar().hide();
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
{
showEnterAnimation();
}
mClose_fb.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v)
{
animationRevealClose();
}
});
}
public void showEnterAnimation()
{
Transition transition = TransitionInflater.from(this).inflateTransition(R.transition.fabtransition);
getWindow().setSharedElementEnterTransition(transition);
transition.addListener(new Transition.TransitionListener() {
@Override
public void onTransitionStart(Transition transition) {
mRegister_cv.setVisibility(View.GONE);
}
@Override
public void onTransitionEnd(Transition transition) {
transition.removeListener(this);
animateRevealShow();
}
@Override
public void onTransitionCancel(Transition transition) {
}
@Override
public void onTransitionPause(Transition transition) {
}
@Override
public void onTransitionResume(Transition transition) {
}
});
}
public void animationRevealClose()
{
Animator mAnimator = ViewAnimationUtils.createCircularReveal(mRegister_cv,mRegister_cv.getWidth()/2,0, mRegister_cv.getHeight(), mClose_fb.getWidth() / 2);
mAnimator.setDuration(500);
mAnimator.setInterpolator(new AccelerateInterpolator());
mAnimator.addListener(new AnimatorListenerAdapter()
{
@Override
public void onAnimationEnd(Animator animation)
{
mRegister_cv.setVisibility(View.INVISIBLE);
super.onAnimationEnd(animation);
mClose_fb.setImageResource(R.drawable.plus);
RegisterActivity.super.onBackPressed();
}
@Override
public void onAnimationStart(Animator animation) {
super.onAnimationStart(animation);
}
});
}
public void animateRevealShow()
{
Animator mAnimator = ViewAnimationUtils.createCircularReveal(mRegister_cv, mRegister_cv.getWidth()/2,0, mClose_fb.getWidth() / 2, mRegister_cv.getHeight());
mAnimator.setDuration(500);
mAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
mAnimator.addListener(new AnimatorListenerAdapter()
{
@Override
public void onAnimationEnd(Animator animation)
{
super.onAnimationEnd(animation);
}
@Override
public void onAnimationStart(Animator animation)
{
mRegister_cv.setVisibility(View.VISIBLE);
super.onAnimationStart(animation);
}
});
mAnimator.start();
}
@Override
public void onBackPressed() {
animationRevealClose();
}
答案 0 :(得分：0)
在你的onCreate中执行此操作：
Setup答案 1 :(得分：0)
没有动画发生的原因是因为我遗漏了 mAnimator.start（）在以下方法中启动动画
public void animationRevealClose()
{
Animator mAnimator = ViewAnimationUtils.createCircularReveal(mRegister_cv,mRegister_cv.getWidth()/2,0, mRegister_cv.getHeight(), mClose_fb.getWidth() / 2);
mAnimator.setDuration(500);
mAnimator.setInterpolator(new AccelerateInterpolator());
mAnimator.addListener(new AnimatorListenerAdapter()
{
@Override
public void onAnimationEnd(Animator animation)
{
mRegister_cv.setVisibility(View.INVISIBLE);
super.onAnimationEnd(animation);
mClose_fb.setImageResource(R.drawable.plus);
RegisterActivity.super.onBackPressed();
}
@Override
public void onAnimationStart(Animator animation) {
super.onAnimationStart(animation);
}
});
mAnimator.start();
}