前段事件突然心血來潮,在國外設(shè)計(jì)找了個(gè)比較酷炫的動(dòng)畫自己來練練手,效果如下,初看之下像是一個(gè)簡單的共享動(dòng)畫,但是仔細(xì)一看,明顯是點(diǎn)擊登錄后先擴(kuò)散一個(gè)波紋,然后無縫跳轉(zhuǎn)到第二個(gè)頁面繼續(xù)擴(kuò)散

short.gif
解決過程
當(dāng)時(shí)卡在使用共享元素動(dòng)畫,但是共享元素動(dòng)畫不能實(shí)現(xiàn)在登錄頁面先擴(kuò)散然后再跳轉(zhuǎn)到第二個(gè)頁面,剛好翻到一個(gè)人寫的波紋動(dòng)畫的使用,思路是,點(diǎn)擊a頁面任意一個(gè)區(qū)域,將點(diǎn)擊的坐標(biāo)傳遞給b頁面,然后在b頁面以傳遞過來的x y為中心坐標(biāo)軸開啟一個(gè)波紋動(dòng)畫。
首先先將b 頁面設(shè)置為背景透明
<style name="noAnimTheme" parent="AppTheme">
<item name="android:windowAnimationStyle">@null</item>
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:colorBackgroundCacheHint">@null</item>
<item name="android:windowIsTranslucent">true</item>
</style>
xml布局文件
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@mipmap/spalsh_bg"
android:orientation="vertical">
<EditText
android:id="@+id/et_user_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:hint="請(qǐng)輸入用戶名"
android:inputType="textPersonName"
android:textAlignment="viewStart"
android:textColor="@android:color/white"
android:textColorHint="@android:color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.32999998" />
<EditText
android:id="@+id/et_password"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:hint="請(qǐng)輸入密碼"
android:inputType="textPassword"
android:textAlignment="viewStart"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.49"
android:textColorHint="@android:color/white" />
<FrameLayout
android:layout_width="214dp"
android:layout_height="wrap_content"
android:layout_marginTop="48dp"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="@+id/et_password"
app:layout_constraintRight_toRightOf="@+id/et_password"
app:layout_constraintTop_toBottomOf="@+id/et_password">
<wdwd.com.booklib.view.weight.CircleImageView
android:id="@+id/btn_login"
style="@style/Widget.AppCompat.Button.Colored"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_gravity="center"
android:background="?android:attr/textColorLink"
android:elevation="7dp"
android:text="登錄"
android:textColor="@android:color/white" />
<com.wang.avi.AVLoadingIndicatorView
android:id="@+id/av_loading_view"
style="@style/AVLoadingIndicatorView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
app:indicatorName="BallClipRotate" />
</FrameLayout>
<TextView
android:id="@+id/tv_register"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginEnd="16dp"
android:text="注冊(cè)"
android:textColor="@android:color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toLeftOf="@+id/tv_forget_password" />
<TextView
android:id="@+id/tv_forget_password"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginEnd="16dp"
android:text="忘記密碼"
android:textColor="@android:color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent" />
<wdwd.com.booklib.view.weight.CircularRevealView
android:id="@+id/scale_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:transitionName="login"
android:background="@android:color/transparent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
</android.support.constraint.ConstraintLayout>
在a頁面點(diǎn)擊時(shí),取得點(diǎn)擊的坐標(biāo)
private Point getLocationInView(View src, View target) {
final int[] l0 = new int[2];
src.getLocationOnScreen(l0);
final int[] l1 = new int[2];
target.getLocationOnScreen(l1);
l1[0] = l1[0] - l0[0] + target.getWidth() / 2;
l1[1] = l1[1] - l0[1] + target.getHeight() / 2;
return new Point(l1[0], l1[1]);
}
Intent intent = new Intent(LoginActivity.this,MainActivity.class);
intent.putExtra("x",point.x);
intent.putExtra("y",point.y);
intent.putExtra("height",btnLogin.getHeight());
b頁面布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/ll_content"
android:layout_width="match_parent"
android:fitsSystemWindows="true"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v4.view.ViewPager
android:id="@+id/fl_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:alpha="0"
android:visibility="visible"
></android.support.v4.view.ViewPager>
<it.sephiroth.android.library.bottomnavigation.BottomNavigation
android:id="@+id/bottomNavigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:visibility="gone"
app:bbn_entries="@menu/tab_menu"
app:layout_behavior="@string/bbn_phone_view_behavior">
</it.sephiroth.android.library.bottomnavigation.BottomNavigation>
<wdwd.com.booklib.view.weight.CircularRevealView
android:id="@+id/circularView"
android:transitionName="login"
android:layout_centerInParent="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorAccent"
/>
</RelativeLayout>
</LinearLayout>
進(jìn)入b頁面,開始波浪動(dòng)畫
private void setupEnterAnimation() {
circularView.post(new Runnable() {
@Override
public void run() {
createRevealAnimator(false).start();
}
});
}
private AnimatorSet createRevealAnimator(boolean reversed) {
int x = getIntent().getIntExtra("x", 0);
int y = getIntent().getIntExtra("y", 0);
int height = getIntent().getIntExtra("height", 0);
float hypot = (float) Math.hypot(circularView.getHeight(), circularView.getWidth()) * 2;
float startRadius = reversed ? hypot : height;
float endRadius = reversed ? height : hypot;
AnimatorSet animatorSet = new AnimatorSet();
Animator animator = ViewAnimationUtils.createCircularReveal(
circularView, x, y,
startRadius,
endRadius);
animator.setDuration(2600);
Animator animator1 = ObjectAnimator.ofFloat(flContent, View.ALPHA, 0, 1);
Animator animator2 = ObjectAnimator.ofFloat(circularView, View.ALPHA, 1, 0);
animator1.setDuration(50);
animator1.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
llContent.setBackgroundResource(android.R.color.white);
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
animator2.setDuration(1800);
animator1.setStartDelay(450);
animator2.setStartDelay(600);
animatorSet.setInterpolator(new AccelerateDecelerateInterpolator());
animatorSet.playTogether(animator, animator1, animator2);
animatorSet.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
bottomNavigation.setVisibility(View.VISIBLE);
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
return animatorSet;
}
效果如下,跟原始效果相差不大了, 其他的可以自己調(diào)節(jié)參數(shù)

login.gif