Android在设置时添加简单的动画(view.Gone)

Question

我设计了一个简单的布局.我已经完成了没有动画的设计,但现在我想在textview点击事件时添加动画,我不知道如何使用它.我的xml设计看起来好不好？任何建议,将不胜感激.

我的XML

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:longClickable="false"
    android:orientation="vertical"
    android:weightSum="16" >

<LinearLayout 
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:orientation="vertical"
    android:background="#00DDA0"
    android:layout_weight="3" >
</LinearLayout>
 <TextView
        android:id="@+id/Information1"
        android:layout_width="match_parent"
        android:layout_height="1dp" 
        android:text="Child Information" 
        android:background="#0390BE"
        android:layout_weight="0.75"
        android:textColor="#FFFFFF"
        android:layout_gravity="center|fill_horizontal"/>

 <LinearLayout
     android:id="@+id/layout1"
     android:layout_width="fill_parent"
     android:layout_height="0dp"
     android:layout_weight="8.5"
     android:background="#BBBBBB"
     android:orientation="vertical" >

     <TextView
         android:id="@+id/textView1"
         android:layout_width="match_parent"
         android:layout_height="match_parent"        
         android:text="TextView" />
 </LinearLayout>

  <TextView
        android:id="@+id/Information2"
        android:layout_width="match_parent"
        android:layout_height="0dp" 
        android:text="Parent Information" 
        android:background="#0390BE"
        android:layout_weight="0.75"
        android:textColor="#FFFFFF"
        android:layout_gravity="center|fill_horizontal"/>
  <LinearLayout 
          android:id="@+id/layout2"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:orientation="vertical"
    android:background="#BBBBBB"
    android:layout_weight="8.5" >
     <TextView
         android:id="@+id/textView2"
         android:layout_width="match_parent"
         android:layout_height="match_parent"        
         android:text="TextView" />
      </LinearLayout>
   <TextView
        android:id="@+id/Information3"
        android:layout_width="match_parent"
        android:layout_height="0dp" 
        android:text="Siblings" 
        android:background="#0390BE"
        android:layout_weight="0.75"
        android:textColor="#FFFFFF"
        android:layout_gravity="center|fill_horizontal"/>
   <LinearLayout 
          android:id="@+id/layout3"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:orientation="vertical"
    android:background="#BBBBBB"
    android:layout_weight="8.5" >
     <TextView
         android:id="@+id/textView3"
         android:layout_width="match_parent"
         android:layout_height="match_parent"        
         android:text="TextView" />
      </LinearLayout>
    <TextView
        android:id="@+id/Information4"
        android:layout_width="match_parent"
        android:layout_height="0dp" 
        android:text="Teacher Information" 
        android:background="#0390BE"
        android:layout_weight="0.75"
        android:textColor="#FFFFFF"
        android:layout_gravity="center|fill_horizontal"/>
    <LinearLayout 
          android:id="@+id/layout4"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:orientation="vertical"
    android:background="#BBBBBB"
    android:layout_weight="8.5" >
     <TextView
         android:id="@+id/textView4"
         android:layout_width="match_parent"
         android:layout_height="match_parent"        
         android:text="TextView" />
      </LinearLayout>
     <TextView
        android:id="@+id/Information5"
        android:layout_width="match_parent"
        android:layout_height="0dp" 
        android:text="Grade Information" 
        android:background="#0390BE"
        android:layout_weight="0.75"
        android:textColor="#FFFFFF"
        android:layout_gravity="center|fill_horizontal"/>
     <LinearLayout 
          android:id="@+id/layout5"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:orientation="vertical"
    android:background="#BBBBBB"
    android:layout_weight="8.5" >
     <TextView
         android:id="@+id/textView5"
         android:layout_width="match_parent"
         android:layout_height="match_parent"        
         android:text="TextView" />
      </LinearLayout>
      <TextView
        android:id="@+id/Information6"
        android:layout_width="match_parent"
        android:layout_height="0dp" 
        android:text="Health Information" 
        android:background="#0390BE"
        android:layout_weight="0.75"
        android:textColor="#FFFFFF"
        android:layout_gravity="center|fill_horizontal"/>
      <LinearLayout 
          android:id="@+id/layout6"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:orientation="vertical"
    android:background="#BBBBBB"
    android:layout_weight="8.5" >
    <TextView
         android:id="@+id/textView5"
         android:layout_width="match_parent"
         android:layout_height="match_parent"        
         android:text="TextView" 
         android:layout_weight="8.5" />
      </LinearLayout>

</LinearLayout>

我的java

public class Certify_Info extends Activity {

    private static TextView tv2,tv3,tv5,tv6,tv4,tv1;
    private static LinearLayout l1,l2,l3,l4,l5,l6;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_certify__info);

        tv1=(TextView) findViewById(R.id.Information1);
        tv2=(TextView) findViewById(R.id.Information2);
        tv3=(TextView) findViewById(R.id.Information3);
        tv4=(TextView) findViewById(R.id.Information4);
        tv5=(TextView) findViewById(R.id.Information5);
        tv6=(TextView) findViewById(R.id.Information6); 

        l1=(LinearLayout) findViewById(R.id.layout1);
        l2=(LinearLayout) findViewById(R.id.layout2);
        l3=(LinearLayout) findViewById(R.id.layout3);
        l4=(LinearLayout) findViewById(R.id.layout4);
        l5=(LinearLayout) findViewById(R.id.layout5);
        l6=(LinearLayout) findViewById(R.id.layout6); 

        l2.setVisibility(View.GONE);
        l3.setVisibility(View.GONE); 
        l4.setVisibility(View.GONE); 
        l5.setVisibility(View.GONE);
        l6.setVisibility(View.GONE);

        tv1.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                l2.setVisibility(View.GONE);
                l3.setVisibility(View.GONE); 
                l4.setVisibility(View.GONE); 
                l5.setVisibility(View.GONE);
                l6.setVisibility(View.GONE);
                l1.setVisibility(View.VISIBLE);
            }
        });
        tv2.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                l1.setVisibility(View.GONE);
                l3.setVisibility(View.GONE); 
                l4.setVisibility(View.GONE); 
                l5.setVisibility(View.GONE);
                l6.setVisibility(View.GONE);
                l2.setVisibility(View.VISIBLE);
            }
        });
        tv3.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                l1.setVisibility(View.GONE);
                l2.setVisibility(View.GONE);
                l4.setVisibility(View.GONE); 
                l5.setVisibility(View.GONE);
                l6.setVisibility(View.GONE);
                l3.setVisibility(View.VISIBLE);

            }
        });
        tv4.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                l1.setVisibility(View.GONE);
                l2.setVisibility(View.GONE);
                l3.setVisibility(View.GONE); 
                l4.setVisibility(View.GONE); 
                l5.setVisibility(View.GONE);
                l6.setVisibility(View.GONE);
                l4.setVisibility(View.VISIBLE); 
            }
        });
        tv5.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                l1.setVisibility(View.GONE);
                l2.setVisibility(View.GONE);
                l3.setVisibility(View.GONE); 
                l4.setVisibility(View.GONE); 
                l6.setVisibility(View.GONE);
                l5.setVisibility(View.VISIBLE); 
            }
        });
        tv6.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                l1.setVisibility(View.GONE);
                l2.setVisibility(View.GONE);
                l3.setVisibility(View.GONE); 
                l4.setVisibility(View.GONE); 
                l5.setVisibility(View.GONE);
                l6.setVisibility(View.VISIBLE);
            }
        });

    }
}

Answer 1

你可以做两件事来添加动画,首先你可以让android动画布局改变你.这样每次你在布局中改变一些东西,如改变视图可见性或视图位置,android将自动创建淡入淡出/过渡动画.要使用该集

android:animateLayoutChanges="true"

在布局中的根节点上.

您的第二个选择是手动添加动画.为此,我建议您使用Android 3.0(Honeycomb)中引入的新动画API.我可以举几个例子:

这淡出了View:

view.animate().alpha(0.0f);

这使它逐渐消失:

view.animate().alpha(1.0f);

这会View向下移动高度:

view.animate().translationY(view.getHeight());

在View将其移动到其他位置之后,它将返回到其起始位置:

view.animate().translationY(0);

您还可以使用它setDuration()来设置动画的持续时间.例如,这会View在2秒内淡出:

view.animate().alpha(0.0f).setDuration(2000);

并且您可以根据需要组合尽可能多的动画,例如,这会逐渐淡出View并在0.3秒内同时向下移动:

view.animate()
        .translationY(view.getHeight())
        .alpha(0.0f)
        .setDuration(300);

您还可以为动画分配侦听器并对各种事件做出反应.就像动画开始,结束或重复等一样.通过使用抽象类,AnimatorListenerAdapter您不必AnimatorListener一次实现所有回调,而只需要实现所需的回调.这使代码更具可读性.例如,下面的代码View在0.3秒(300毫秒)的时间内淡出它的高度,并且当动画完成时,其可见性设置为View.GONE.

view.animate()
        .translationY(view.getHeight())
        .alpha(0.0f)
        .setDuration(300)
        .setListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                view.setVisibility(View.GONE);
            }
        });

Answer 2

动画化Visibility更改的最简单方法是使用Transition API支持（androidx）软件包中可用的方法。只需调用TransitionManager.beginDelayedTransition方法，然后更改视图的可见性。有喜欢的几个默认的转变Fade，Slide。

import androidx.transition.TransitionManager;
import androidx.transition.Transition;
import androidx.transition.Fade;

private void toggle() {
    Transition transition = new Fade();
    transition.setDuration(600);
    transition.addTarget(R.id.image);

    TransitionManager.beginDelayedTransition(parent, transition);
    image.setVisibility(show ? View.VISIBLE : View.GONE);
}

动画视图的parent父级在哪里ViewGroup。结果：

这是Slide过渡的结果：

import androidx.transition.Slide;

Transition transition = new Slide(Gravity.BOTTOM);

如果需要其他功能，编写自定义过渡很容易。这是CircularRevealTransition我在另一个答案中写的例子。它使用CircularReveal动画显示和隐藏视图。

Transition transition = new CircularRevealTransition();

android:animateLayoutChanges="true"选项做同样的事情，它只是使用自动转换作为过渡。

Answer 3

请检查此链接.这将允许像L2R,R2L,T2B,B2T动画这样的动画.

此代码从左到右显示动画

TranslateAnimation animate = new TranslateAnimation(0,view.getWidth(),0,0);
animate.setDuration(500);
animate.setFillAfter(true);
view.startAnimation(animate);
view.setVisibility(View.GONE);

如果你想从R2L那里做,那就用吧

TranslateAnimation animate = new TranslateAnimation(0,-view.getWidth(),0,0);

从上到下为

TranslateAnimation animate = new TranslateAnimation(0,0,0,view.getHeight());

反之亦然..

Answer 4

尝试将此行添加到axml父布局

 android:animateLayoutChanges="true"

Answer 5

基于@Xaver Kapeller的答案,我想出了一种在屏幕上出现新视图时创建滚动动画的方法(以及隐藏它们的动画).

它来自这个状态:

• 按键
• 最后一个按钮

至

• 按键
• 按钮1
• 按钮2
• 按钮3
• 按钮4
• 最后一个按钮

反之亦然.

因此,当用户点击第一个按钮时,元素"按钮1","按钮2","按钮3"和"按钮4"将使用淡入淡出动画出现,元素"最后一个按钮"将向下移动直到结束.布局的高度也会改变,允许正确使用滚动视图.

这是用动画显示元素的代码:

private void showElements() {
    // Precondition
    if (areElementsVisible()) {
        Log.w(TAG, "The view is already visible. Nothing to do here");
        return;
    }

    // Animate the hidden linear layout as visible and set
    // the alpha as 0.0. Otherwise the animation won't be shown
    mHiddenLinearLayout.setVisibility(View.VISIBLE);
    mHiddenLinearLayout.setAlpha(0.0f);
    mHiddenLinearLayout
            .animate()
            .setDuration(ANIMATION_TRANSITION_TIME)
            .alpha(1.0f)
            .setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    super.onAnimationEnd(animation);
                    updateShowElementsButton();
                    mHiddenLinearLayout.animate().setListener(null);
                }
            })
    ;

    mLastButton
            .animate()
            .setDuration(ANIMATION_TRANSITION_TIME)
            .translationY(mHiddenLinearLayoutHeight);

    // Update the high of all the elements relativeLayout
    LayoutParams layoutParams = mAllElementsRelativeLayout.getLayoutParams();

    // TODO: Add vertical margins
    layoutParams.height = mLastButton.getHeight() + mHiddenLinearLayoutHeight;
}

这是隐藏动画元素的代码:

private void hideElements() {
    // Precondition
    if (!areElementsVisible()) {
        Log.w(TAG, "The view is already non-visible. Nothing to do here");
        return;
    }

    // Animate the hidden linear layout as visible and set
    mHiddenLinearLayout
            .animate()
            .setDuration(ANIMATION_TRANSITION_TIME)
            .alpha(0.0f)
            .setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    Log.v(TAG, "Animation ended. Set the view as gone");
                    super.onAnimationEnd(animation);
                    mHiddenLinearLayout.setVisibility(View.GONE);
                    // Hack: Remove the listener. So it won't be executed when
                    // any other animation on this view is executed
                    mHiddenLinearLayout.animate().setListener(null);
                    updateShowElementsButton();
                }
            })
    ;

    mLastButton
            .animate()
            .setDuration(ANIMATION_TRANSITION_TIME)
            .translationY(0);

    // Update the high of all the elements relativeLayout
    LayoutParams layoutParams = mAllElementsRelativeLayout.getLayoutParams();

    // TODO: Add vertical margins
    layoutParams.height = mLastButton.getHeight();
}

注意隐藏动画的方法有一个简单的黑客攻击.在动画侦听器mHiddenLinearLayout上,我必须使用以下命令删除侦听器本身:

mHiddenLinearLayout.animate().setListener(null);

这是因为一旦动画侦听器附加到视图,下次在此视图中执行任何动画时,也将执行侦听器.这可能是动画侦听器中的错误.

该项目的源代码在GitHub上:https: //github.com/jiahaoliuliu/ViewsAnimated

快乐的编码!

更新:对于附加到视图的任何侦听器,应在动画结束后将其删除.这是通过使用完成的

view.animate().setListener(null);

Answer 6

基于@ashakirov 的回答，这是我使用淡入淡出动画显示/隐藏视图的扩展

fun View.fadeVisibility(visibility: Int, duration: Long = 400) {
    val transition: Transition = Fade()
    transition.duration = duration
    transition.addTarget(this)
    TransitionManager.beginDelayedTransition(this.parent as ViewGroup, transition)
    this.visibility = visibility
}

使用示例

view.fadeVisibility(View.VISIBLE)
view.fadeVisibility(View.GONE, 2000)

Answer 7

我的解决方案扩展

fun View.slideVisibility(visibility: Boolean, durationTime: Long = 300) {
    val transition = Slide(Gravity.BOTTOM)
    transition.apply {
        duration = durationTime
        addTarget(this@slideVisibility)
    }
    TransitionManager.beginDelayedTransition(this.parent as ViewGroup, transition)
    this.isVisible = visibility
    }

使用：

textView.slideVisibility(true)

Answer 8

我能够以这种方式显示/隐藏菜单：

MenuView.java（扩展FrameLayout）

private final int ANIMATION_DURATION = 500;

public void showMenu()
{
    setVisibility(View.VISIBLE);
    animate()
            .alpha(1f)
            .setDuration(ANIMATION_DURATION)
            .setListener(null);
}

private void hideMenu()
{
    animate()
            .alpha(0f)
            .setDuration(ANIMATION_DURATION)
            .setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    setVisibility(View.GONE);
                }
            });
}

资源