材质设计:在工具栏之间切换时添加圆形显示动画 [英] Material Design: Add circular reveal animation while switching between toolbars
问题描述
我正在阅读材料设计指南中的选择"部分( https://material. io/guidelines/patterns/selection.html )，我想在我的应用程序中添加的一个效果是在应用程序栏和ActionMode之间切换时的圆形显示动画.另一个工具栏?
I was reading the "Selection" section in material design guidelines (https://material.io/guidelines/patterns/selection.html), and one effect i wanted to add in my app was the circular reveal animation while switching between the app bar and the ActionMode ? An other toolbar ?
Here is an example from the guidelines: https://storage.googleapis.com/material-design/publish/material_v_10/assets/0Bwp7jtSjaW36RGF3eUFsRkdqU1U/patterns_selection_item_controlling_desktop_click.webm
我没有找到有关如何执行此操作的任何解释. 我什至不知道他们是否使用ActionMode或其他方式...
I didn't found any explanations about how to do that. I do not even know if they use an ActionMode or something else...
有人可以给我很好的指导吗?
Is there someone who could give me the good direction to follow ?
修改: minSdk 21
edit: minSdk 21
修改2: 查看状态栏，状态栏也会发生变化...
edit 2: look at the status bar which also changes itself...
谢谢 弗朗索瓦(François)
Thanks François
推荐答案
好吧，我终于找到了解决方案.
Ok finally i found a solution.
这不是一个很好的选择...但是我没有其他想法要使用其他东西，因此，如果您有其他要分享的技巧...不客气！
It is not a very good one... but i have no other idea to use something else so if you have some other tips to share... you're welcome!
这是下面的最终结果和代码:
在GitHub上的示例项目
https://github.com/fbourlieux/android-material-circular_reveal_animation
目标&想法
通过使用平滑的"圆形显示动画从工具栏切换到另一个工具栏.该动画需要更新应用栏和状态栏.
Switching from a toolbar to another one by using a "smooth" circular revealed animation. That animation need to update the app bar AND status bar.
为此，首先我们需要通过使用主布局容器上的android:fitsSystemWindows=false属性和App主题中的<item name="android:windowTranslucentStatus">true</item>来强制活动在状态栏下显示其内容.基于此，我们不仅将创建Toolbar，还将创建一个将显示在statusBar下的视图，以在动画过程中绘制漂亮的背景.这是我在样本中不喜欢的要点，但是我没有找到其他解决方案.
To do so, first we need to force the activity to display it content under the status bar by using android:fitsSystemWindows=false property on the main layout container and <item name="android:windowTranslucentStatus">true</item> in the App theme. Based on that we will not only create a Toolbar but also a view that will be displayed under the statusBar, juste to draw a nice background during the animation. Here is the point i don't like in my sample, but i didn't found any other solution.
让我们看看代码
styles.xml
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="android:windowTranslucentStatus">true</item>
</style>
我们刚刚添加了android:windowTranslucentStatus属性.
app_bar_main.xml
<android.support.design.widget.CoordinatorLayout
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"
android:fitsSystemWindows="false"
tools:context="sample.test.fbo.circularrevealanimation.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<!-- used to force the two toolbars to display above each other -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- initial toolbar layout with the status bar
and the original toolbar. That layout need to have a
background to show the elevation even if it will never
be visible (because of inner component backgrounds) -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorPrimary"
android:elevation="4dp"
android:orientation="vertical">
<!-- status bar background: height of 24dp
and initial color darker than the toolbar color -->
<View
android:layout_width="match_parent"
android:layout_height="24dp"
android:background="@color/colorPrimaryDark" />
<!-- main toolbar. A very basic one.-->
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</LinearLayout>
<!-- reveal section layout. Here is our second toolbar
section which will be animated. It contains a view to
fake the status bar background and the second toolbar
to display. -->
<LinearLayout
android:id="@+id/revealedToolBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorAccentDark"
android:elevation="4dp"
android:orientation="vertical"
android:visibility="invisible">
<!-- revealed status bar. Just to change it background. -->
<View
android:id="@+id/revealBackgroundStatus"
android:layout_width="match_parent"
android:layout_height="24dp"
android:background="@color/colorAccentDark" />
<!-- revealed toolbar. The second one with in our case
a simple button and text inside. -->
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar2"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/colorAccent"
app:popupTheme="@style/AppTheme.PopupOverlay">
<!-- a click on that button will trigger
the animation close event -->
<ImageButton
android:id="@+id/toolbar_arrow"
android:layout_width="48dp"
android:layout_height="48dp"
android:background="@android:color/transparent"
android:src="@drawable/arrow_left" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="24dp"
android:fontFamily="sans-serif-regular"
android:gravity="center_vertical"
android:text="Foo Bar Baz"
android:textColor="@android:color/white"
android:textSize="18sp"
android:textStyle="bold"
tools:text="Foo Bar Baz" />
</android.support.v7.widget.Toolbar>
</LinearLayout>
</RelativeLayout>
</android.support.design.widget.AppBarLayout>
<!-- content_main just contains a ToggleButton to trigger
the animation-->
<include layout="@layout/content_main" />
</android.support.design.widget.CoordinatorLayout>
创建2个重叠的布局，其中包含一个用于绘制状态栏的视图和一个用于绘制工具栏的视图.默认情况下，要设置动画的布局是不可见的.
Create 2 overlapped layout that contains a view to draw the status bar and a view to draw the toolbar. By default, the layout to animate is set invisible.
MainActivity.java
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, View.OnClickListener {
private final static int ANIMATION_DURATION = 400;
private ToggleButton mActionButton;
private View mRevealedToolBar;
private ImageButton mArrowButton;
private boolean mIsHidden = true;
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// main toolbar
final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
final DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
final ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
final NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
// trigger circular reveal animation
mActionButton = (ToggleButton) findViewById(R.id.actionButton);
mActionButton.setOnClickListener(this);
// toolbar view to reveal. Inivisible by default
mRevealedToolBar = findViewById(R.id.revealedToolBar);
mRevealedToolBar.setVisibility(View.INVISIBLE);
// button in revealed toolbar to dismiss it
mArrowButton = (ImageButton) findViewById(R.id.toolbar_arrow);
mArrowButton.setOnClickListener(this);
}
@Override
public void onBackPressed() {
final DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
if (item.getItemId() == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(final MenuItem item) {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
@Override
public void onClick(final View view) {
if (view == mActionButton || view == mArrowButton) {
// compute started X and Y co-ordinates for the animation + radius
int x = mRevealedToolBar.getLeft();
int y = mRevealedToolBar.getBottom();
int startRadius = 0;
int endRadius = Math.max(mRevealedToolBar.getWidth(), mRevealedToolBar.getHeight());
int reverseStartRadius = endRadius;
int reverseEndRadius = startRadius;
if (mIsHidden) {
// show secondary toolbar
// performing circular reveal when icon will be tapped
Animator animator = ViewAnimationUtils.createCircularReveal(mRevealedToolBar, x, y, startRadius, endRadius);
animator.setInterpolator(new AccelerateDecelerateInterpolator());
animator.setDuration(ANIMATION_DURATION);
mRevealedToolBar.setVisibility(View.VISIBLE);
animator.start();
mIsHidden = false;
} else {
// dismiss secondary toolbar
// performing circular reveal for reverse animation
Animator animate = ViewAnimationUtils.createCircularReveal(mRevealedToolBar, x, y, reverseStartRadius, reverseEndRadius);
animate.setInterpolator(new AccelerateDecelerateInterpolator());
animate.setDuration(ANIMATION_DURATION);
// to hide layout on animation end
animate.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
mRevealedToolBar.setVisibility(View.INVISIBLE);
mIsHidden = true;
}
});
mRevealedToolBar.setVisibility(View.VISIBLE);
animate.start();
}
}
}
}
因此，在MainActivity中，在听完ToggleButton的onclick事件之后，我使用ViewAnimationUtils.createCircularReveal方法触发了第二个工具栏组(状态视图+工具栏)的动画.第一个参数是要设置动画的视图，其次是动画的起始坐标，然后是半径.
So in MainActivity, after having listen the onclick event of my ToggleButton, i trigger the animation of my second toolbar group (status view + toolbar) by using ViewAnimationUtils.createCircularReveal methods. First argument is the view to animate, followed by the start coordinate of the animation and followed by the radius.
在onClick方法中，当我单击箭头或第二次在ToggleButton上单击时，我也会启动reverse动画.
In onClick method i also launch a reverse animation when i click on the arrow or a second time on my ToggleButton.
最后，即使我们需要伪造状态栏背景，这也是一个非常简单的解决方案.
Finally it is a pretty simple solution even if we need to fake the status bar background.
希望我的解决方案可以帮助某人.
Hope my solution could help someone.
François
有用的链接:
- Link1: Circular-Reveal-Animation project on GitHub
- Link2: Create Circular Reveal Animation And Ripple Effect like Whatsapp
- Link3: Simple Ripple + Reveal + Elevation tutorial
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