我有一个线性布局，我想显示或隐藏与动画，推动布局向上或向下每当我改变其可见性。
我在那里看过一些样品，但没有一个适合我的需要。
我已经为动画创建了两个xml文件，但我不知道当我改变线性布局的可见性时如何启动它们。
当前回答
其中一个简单的方法是:
containerView.setLayoutTransition(LayoutTransition())
containerView.layoutTransition.enableTransitionType(LayoutTransition.CHANGING)
其他回答
你可以使用简单的三行代码来显示动画…
//getting the hiding view by animation
mbinding.butn.setOnClickListener {
val SlideOutLeft = AnimationUtils.loadAnimation(this, R.anim.slide_out_left)
simplelayout.visibility = View.INVISIBLE
simplelayout.startAnimation(SlideOutLeft)
val SlideInRight = AnimationUtils.loadAnimation(applicationContext, R.anim.slide_in_right)
animation1.visibility = View.VISIBLE
animation1.startAnimation(SlideInRight)
}
//again unhide the view animation
mbinding.buttn.setOnClickListener {
val SlideInLeft=AnimationUtils.loadAnimation(this,R.anim.slide_in_left)
//set the layout
simplelayout.visibility=View.VISIBLE
simplelayout.startAnimation(SlideInLeft)
val SlideOutRight=AnimationUtils.loadAnimation(this,R.anim.slide_out_right)
animation1.visibility=View.INVISIBLE
animation1.startAnimation(SlideOutRight)
}
你可以上下滑动任何视图或布局使用咆哮的代码在安卓应用程序
boolean isClicked = false;
LinearLayout mLayoutTab = (LinearLayout) findViewById(R.id.linearlayout);
if(isClicked) {
isClicked = false;
mLayoutTab.animate()
.translationYBy(120)
.translationY(0)
.setDuration(getResources().getInteger(android.R.integer.config_mediumAnimTime));
} else {
isClicked = true;
mLayoutTab.animate()
.translationYBy(0)
.translationY(120)
.setDuration(getResources().getInteger(android.R.integer.config_mediumAnimTime));
}
通过Kotlin扩展，你可以这样使用:
enum class SlideDirection{
UP,
DOWN,
LEFT,
RIGHT
}
enum class SlideType{
SHOW,
HIDE
}
fun View.slideAnimation(direction: SlideDirection, type: SlideType, duration: Long = 250){
val fromX: Float
val toX: Float
val fromY: Float
val toY: Float
val array = IntArray(2)
getLocationInWindow(array)
if((type == SlideType.HIDE && (direction == SlideDirection.RIGHT || direction == SlideDirection.DOWN)) ||
(type == SlideType.SHOW && (direction == SlideDirection.LEFT || direction == SlideDirection.UP)) ){
val displayMetrics = DisplayMetrics()
val windowManager = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager
windowManager.defaultDisplay.getMetrics(displayMetrics)
val deviceWidth = displayMetrics.widthPixels
val deviceHeight = displayMetrics.heightPixels
array[0] = deviceWidth
array[1] = deviceHeight
}
when (direction) {
SlideDirection.UP -> {
fromX = 0f
toX = 0f
fromY = if(type == SlideType.HIDE) 0f else (array[1] + height).toFloat()
toY = if(type == SlideType.HIDE) -1f * (array[1] + height) else 0f
}
SlideDirection.DOWN -> {
fromX = 0f
toX = 0f
fromY = if(type == SlideType.HIDE) 0f else -1f * (array[1] + height)
toY = if(type == SlideType.HIDE) 1f * (array[1] + height) else 0f
}
SlideDirection.LEFT -> {
fromX = if(type == SlideType.HIDE) 0f else 1f * (array[0] + width)
toX = if(type == SlideType.HIDE) -1f * (array[0] + width) else 0f
fromY = 0f
toY = 0f
}
SlideDirection.RIGHT -> {
fromX = if(type == SlideType.HIDE) 0f else -1f * (array[0] + width)
toX = if(type == SlideType.HIDE) 1f * (array[0] + width) else 0f
fromY = 0f
toY = 0f
}
}
val animate = TranslateAnimation(
fromX,
toX,
fromY,
toY
)
animate.duration = duration
animate.setAnimationListener(object: Animation.AnimationListener{
override fun onAnimationRepeat(animation: Animation?) {
}
override fun onAnimationEnd(animation: Animation?) {
if(type == SlideType.HIDE){
visibility = View.INVISIBLE
}
}
override fun onAnimationStart(animation: Animation?) {
visibility = View.VISIBLE
}
})
startAnimation(animate)
}
扩展示例:
view.slideAnimation(SlideDirection.UP, SlideType.HIDE)//to make it disappear through top of the screen
view.slideAnimation(SlideDirection.DOWN, SlideType.SHOW)//to make it reappear from top of the screen
view.slideAnimation(SlideDirection.DOWN, SlideType.HIDE)//to make it disappear through bottom of the screen
view.slideAnimation(SlideDirection.UP, SlideType.SHOW)//to make it reappear from bottom of the screen
我有一个角落的情况，我的视图高度仍然是0所以。
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.view.View;
public final class AnimationUtils {
public static void slideDown(final View view) {
view.animate()
.translationY(view.getHeight())
.alpha(0.f)
.setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
// superfluous restoration
view.setVisibility(View.GONE);
view.setAlpha(1.f);
view.setTranslationY(0.f);
}
});
}
public static void slideUp(final View view) {
view.setVisibility(View.VISIBLE);
view.setAlpha(0.f);
if (view.getHeight() > 0) {
slideUpNow(view);
} else {
// wait till height is measured
view.post(new Runnable() {
@Override
public void run() {
slideUpNow(view);
}
});
}
}
private static void slideUpNow(final View view) {
view.setTranslationY(view.getHeight());
view.animate()
.translationY(0)
.alpha(1.f)
.setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
view.setVisibility(View.VISIBLE);
view.setAlpha(1.f);
}
});
}
}
这里有另一种方法来处理多个按钮(在这个例子中是ImageView)
MainActivity.java
findViewById(R.id.arrowIV).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (strokeWidthIV.getAlpha() == 0f) {
findViewById(R.id.arrowIV).animate().rotationBy(180);
strokeWidthIV.animate().translationXBy(-120 * 4).alpha(1f);
findViewById(R.id.colorChooseIV).animate().translationXBy(-120 * 3).alpha(1f);
findViewById(R.id.saveIV).animate().translationXBy(-120 * 2).alpha(1f);
findViewById(R.id.clearAllIV).animate().translationXBy(-120).alpha(1f);
} else {
findViewById(R.id.arrowIV).animate().rotationBy(180);
strokeWidthIV.animate().translationXBy(120 * 4).alpha(0f);
findViewById(R.id.colorChooseIV).animate().translationXBy(120 * 3).alpha(0f);
findViewById(R.id.saveIV).animate().translationXBy(120 * 2).alpha(0f);
findViewById(R.id.clearAllIV).animate().translationXBy(120).alpha(0f);
}
}
});
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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=".activity.MainActivity">
<ImageView
android:id="@+id/strokeWidthIV"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_margin="8dp"
android:alpha="0"
android:contentDescription="Clear All"
android:padding="4dp"
android:scaleType="fitXY"
android:src="@drawable/ic_edit"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
<ImageView
android:id="@+id/colorChooseIV"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_margin="8dp"
android:alpha="0"
android:contentDescription="Clear All"
android:padding="4dp"
android:scaleType="fitXY"
android:src="@drawable/ic_palette"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
<ImageView
android:id="@+id/saveIV"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_margin="8dp"
android:alpha="0"
android:contentDescription="Clear All"
android:padding="4dp"
android:scaleType="fitXY"
android:src="@drawable/ic_save"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
<ImageView
android:id="@+id/clearAllIV"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_margin="8dp"
android:alpha="0"
android:contentDescription="Clear All"
android:padding="4dp"
android:scaleType="fitXY"
android:src="@drawable/ic_clear_all"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
<ImageView
android:id="@+id/arrowIV"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_margin="8dp"
android:contentDescription="Arrow"
android:padding="4dp"
android:scaleType="fitXY"
android:src="@drawable/ic_arrow"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
</androidx.constraintlayout.widget.ConstraintLayout>
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