Android “安卓如何连锁”；“爆炸”；文本视图中的文本动画？_Android_Textview_Scale_Objectanimator_Animatorset

Android “安卓如何连锁”；“爆炸”；文本视图中的文本动画？

android

Android “安卓如何连锁”；“爆炸”；文本视图中的文本动画？,android,textview,scale,objectanimator,animatorset,Android,Textview,Scale,Objectanimator,Animatorset,我试图在textView中将3个“爆炸式”文本动画链接在一起，以便按顺序显示3个单词：“就绪”、“设置”和“开始！”。通过“分解”，我的意思是文本大小从默认值的0.25f变为默认值的1.00f，而alpha=0变为alpha=1 问题：我可以按预期将第一个单词“Ready”设置为“explode”，但下一个单词“Set”不会“explode”，即根本不会更改文本大小（只有动画的alpha部分有效）我的MainActivity.java如下所示。我没有把第三次“爆炸”放进去，因为如果我能让第二次

我试图在textView中将3个“爆炸式”文本动画链接在一起，以便按顺序显示3个单词：“就绪”、“设置”和“开始！”。通过“分解”，我的意思是文本大小从默认值的0.25f变为默认值的1.00f，而alpha=0变为alpha=1

问题：我可以按预期将第一个单词“Ready”设置为“explode”，但下一个单词“Set”不会“explode”，即根本不会更改文本大小（只有动画的alpha部分有效）

我的MainActivity.java如下所示。我没有把第三次“爆炸”放进去，因为如果我能让第二次爆炸成功，那就是复制粘贴的问题

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.util.TypedValue;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    public void actionExplode(View view) {

        // .setTextSize() defaults to sp but .getTextSize() defaults to px http://stackoverflow.com/a/3687385/1827488

        String textReady = "Ready";
        final String textSet = "Set";
        final String textGo =  "Go!";

        final TextView questionDisplay = (TextView) findViewById(R.id.textView);
        final float textSizePx = questionDisplay.getTextSize();
        Log.i("actionExplode", "textSizePx=" + textSizePx);

        final float scaleSmall = 0.25f;
        float scaleFull = 1.0f;
        final float fadeOut = 0f;
        float fadeIn = 1f;

        questionDisplay.setAlpha(fadeOut);
        questionDisplay.setText(textReady);
        questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall);
        Log.i("actionExplode", ".getTextSize()=" + questionDisplay.getTextSize());

        int animateDurationReadySetGo = 1000;
        int animateDurationFudge = 100;

        ObjectAnimator animateReadyFadeIn = ObjectAnimator.ofFloat(questionDisplay, "alpha", fadeOut, fadeIn);
        animateReadyFadeIn.setDuration(animateDurationReadySetGo);
        ObjectAnimator animateReadyX = ObjectAnimator.ofFloat(questionDisplay, "scaleX", scaleFull/scaleSmall);
        animateReadyX.setDuration(animateDurationReadySetGo);
        ObjectAnimator animateReadyY = ObjectAnimator.ofFloat(questionDisplay, "scaleY", scaleFull/scaleSmall);
        animateReadyY.setDuration(animateDurationReadySetGo /* + animateDurationFudge */ );
        animateReadyY.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                Log.i("onAnimationEnd", "before .getTextSize()=" + questionDisplay.getTextSize());
                //questionDisplay.setAlpha(fadeOut);
                questionDisplay.setText(textSet);
                questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall);
                Log.i("onAnimationEnd", "after .getTextSize()=" + questionDisplay.getTextSize());
            }
        });

        ObjectAnimator animateSetFadeIn = ObjectAnimator.ofFloat(questionDisplay, "alpha", fadeOut, fadeIn);
        animateSetFadeIn.setDuration(animateDurationReadySetGo);
        ObjectAnimator animateSetX = ObjectAnimator.ofFloat(questionDisplay, "scaleX", scaleFull/scaleSmall);
        animateSetX.setDuration(animateDurationReadySetGo);
        ObjectAnimator animateSetY = ObjectAnimator.ofFloat(questionDisplay, "scaleY", scaleFull/scaleSmall);
        animateSetY.setDuration(animateDurationReadySetGo /* + animateDurationFudge */ );
        animateSetY.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                Log.i("onAnimationEnd", "before .getTextSize()=" + questionDisplay.getTextSize());
                //questionDisplay.setAlpha(fadeOut);
                questionDisplay.setText(textGo);
                questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall);
                Log.i("onAnimationEnd", "after .getTextSize()=" + questionDisplay.getTextSize());
            }
        });

        AnimatorSet animateReadySetGo = new AnimatorSet();
        animateReadySetGo.playTogether(animateReadyX, animateReadyY, animateReadyFadeIn);
        animateReadySetGo.playTogether(animateSetX, animateSetY, animateSetFadeIn);
        animateReadySetGo.playSequentially(animateReadyY, animateSetY);
        animateReadySetGo.start();
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

这是日志显示的内容。不合理的是：1）为什么“之前”行显示为43.75，而它们应该显示为175.0？2）为什么“后”行显示43.75，但文本大小不缩小

I/actionExplode: textSizePx=175.0
I/actionExplode: .getTextSize()=43.75
I/onAnimationEnd: before .getTextSize()=43.75
I/onAnimationEnd: after .getTextSize()=43.75
I/onAnimationEnd: before .getTextSize()=43.75
I/onAnimationEnd: after .getTextSize()=43.75

My activity_main.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.plaudev.explodingtext.MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:text="@string/textView"
        android:id="@+id/textView"
        android:fontFamily="casual"
        android:textSize="50sp"
        android:textStyle="normal|bold"
        android:textAlignment="center"
        android:gravity="center" />

    <Button
        android:text="@string/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:id="@+id/button"
        android:background="@color/colourTransparent"
        android:textAllCaps="false"
        android:textSize="25sp"
        android:textStyle="normal|bold"
        android:fontFamily="casual"
        android:onClick="actionExplode"
        android:textColor="@android:color/holo_green_dark" />
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.plaudev.explodingtext.MainActivity">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:id="@+id/questionDisplay">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:text="@string/textView"
            android:id="@+id/question"
            android:fontFamily="casual"
            android:textSize="50sp"
            android:textStyle="normal|bold"
            android:textAlignment="center"
            android:gravity="center"
            android:layout_weight="1"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:text="@string/textView"
            android:id="@+id/ready"
            android:fontFamily="casual"
            android:textSize="50sp"
            android:textStyle="normal|bold"
            android:textAlignment="center"
            android:gravity="center"
            android:layout_weight="1"
            android:visibility="gone"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:text="@string/textView"
            android:id="@+id/set"
            android:fontFamily="casual"
            android:textSize="50sp"
            android:textStyle="normal|bold"
            android:textAlignment="center"
            android:gravity="center"
            android:layout_weight="1"
            android:visibility="gone"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:text="@string/textView"
            android:id="@+id/go"
            android:fontFamily="casual"
            android:textSize="50sp"
            android:textStyle="normal|bold"
            android:textAlignment="center"
            android:gravity="center"
            android:layout_weight="1"
            android:visibility="gone"/>

        <Button
            android:text="@string/button"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:id="@+id/button"
            android:background="@color/colourTransparent"
            android:textAllCaps="false"
            android:textSize="25sp"
            android:textStyle="normal|bold"
            android:fontFamily="casual"
            android:onClick="explodeThreeTextViews"
            android:textColor="@android:color/holo_green_dark"
            android:layout_weight="1" />

    </LinearLayout>

</RelativeLayout>

上面更新的代码生成此日志：

I/startChainExplosion: explosionIndex=0, textSizeFullPx=175.0
I/actionExplode: textSizeFullPx=175.0, explosionIndex=0, textSizePx=175.0
I/actionExplode: .getTextSize()=43.75
I/onFinish: .getTextSize()=43.75
I/actionExplode: textSizeFullPx=175.0, explosionIndex=1, textSizePx=43.75
I/actionExplode: .getTextSize()=10.9375
I/onFinish: .getTextSize()=10.9375
I/actionExplode: textSizeFullPx=175.0, explosionIndex=2, textSizePx=10.9375
I/actionExplode: .getTextSize()=2.734375
I/onFinish: .getTextSize()=2.734375

更新2：按照@Xaver的建议，尝试将此作为onClick。但结果与我最初的尝试相同，即“准备”爆炸，但“设置”和“开始！”不爆炸。此外，在所有动画完成后，文本大小变得非常大（我猜是175px*4）。更新代码和日志如下。我有一种感觉，我需要每个单词都有自己的文本视图，以避免文本大小保留问题

public void explodeSequentially(View view) {

        String textReady = "Ready";
        final String textSet = "Set";
        final String textGo =  "Go!";

        final TextView questionDisplay = (TextView) findViewById(R.id.textView);
        float textSizePx = questionDisplay.getTextSize();
        Log.i("explodeSequentially", "textSizePx=" + textSizePx);

        float scaleSmall = 0.25f;
        float scaleFull = 1.0f;
        float fadeOut = 0f;
        float fadeIn = 1f;

        questionDisplay.setAlpha(fadeOut);
        questionDisplay.setText(textReady);
        questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall);
        Log.i("explodeSequentially", ".getTextSize()=" + questionDisplay.getTextSize());

        ObjectAnimator animateReadyFadeIn = ObjectAnimator.ofFloat(questionDisplay, "alpha", fadeOut, fadeIn);
        animateReadyFadeIn.setDuration(animateDurationExplosion);
        ObjectAnimator animateReadyX = ObjectAnimator.ofFloat(questionDisplay, "scaleX", scaleFull/scaleSmall);
        animateReadyX.setDuration(animateDurationExplosion);
        ObjectAnimator animateReadyY = ObjectAnimator.ofFloat(questionDisplay, "scaleY", scaleFull/scaleSmall);
        animateReadyY.setDuration(animateDurationExplosion /* + animateDurationFudge */ );
        animateReadyY.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                Log.i("onAnimationEnd", "before .getTextSize()=" + questionDisplay.getTextSize());
                //questionDisplay.setAlpha(fadeOut);
                questionDisplay.setText(textSet);
                //questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall);
                //Log.i("onAnimationEnd", "after .getTextSize()=" + questionDisplay.getTextSize());
            }
        });
        AnimatorSet animateReady = new AnimatorSet();
        animateReady.playTogether(animateReadyX, animateReadyY, animateReadyFadeIn);

        ObjectAnimator animateSetFadeIn = ObjectAnimator.ofFloat(questionDisplay, "alpha", fadeOut, fadeIn);
        animateSetFadeIn.setDuration(animateDurationExplosion);
        ObjectAnimator animateSetX = ObjectAnimator.ofFloat(questionDisplay, "scaleX", scaleFull/scaleSmall);
        animateSetX.setDuration(animateDurationExplosion);
        ObjectAnimator animateSetY = ObjectAnimator.ofFloat(questionDisplay, "scaleY", scaleFull/scaleSmall);
        animateSetY.setDuration(animateDurationExplosion /* + animateDurationFudge */ );
        animateSetY.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                Log.i("onAnimationEnd", "before .getTextSize()=" + questionDisplay.getTextSize());
                //questionDisplay.setAlpha(fadeOut);
                questionDisplay.setText(textGo);
                //questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall);
                //Log.i("onAnimationEnd", "after .getTextSize()=" + questionDisplay.getTextSize());
            }
        });
        AnimatorSet animateSet = new AnimatorSet();
        animateSet.playTogether(animateSetX, animateSetY, animateSetFadeIn);

        ObjectAnimator animateGoFadeIn = ObjectAnimator.ofFloat(questionDisplay, "alpha", fadeOut, fadeIn);
        animateGoFadeIn.setDuration(animateDurationExplosion);
        ObjectAnimator animateGoX = ObjectAnimator.ofFloat(questionDisplay, "scaleX", scaleFull/scaleSmall);
        animateGoX.setDuration(animateDurationExplosion);
        ObjectAnimator animateGoY = ObjectAnimator.ofFloat(questionDisplay, "scaleY", scaleFull/scaleSmall);
        animateGoY.setDuration(animateDurationExplosion /* + animateDurationFudge */ );
        animateGoY.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                Log.i("onAnimationEnd", "before .getTextSize()=" + questionDisplay.getTextSize());
                //questionDisplay.setAlpha(fadeOut);
                questionDisplay.setText("Here is the question!");
                //questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall);
                //Log.i("onAnimationEnd", "after .getTextSize()=" + questionDisplay.getTextSize());
            }
        });
        AnimatorSet animateGo = new AnimatorSet();
        animateGo.playTogether(animateGoX, animateGoY, animateGoFadeIn);

        AnimatorSet animateReadySetGo = new AnimatorSet();
        animateReadySetGo.playSequentially(animateReady, animateSet, animateGo);
        animateReadySetGo.start();
    }

日志呢

I/explodeSequentially: textSizePx=175.0
I/explodeSequentially: .getTextSize()=43.75
I/onAnimationEnd: before .getTextSize()=43.75
I/onAnimationEnd: before .getTextSize()=43.75
I/onAnimationEnd: before .getTextSize()=43.75

我的怀疑是正确的。每当在插座上使用

final

时，

textView

s上的文本大小就会出现，如果我想链接动画，这种使用似乎是不可避免的。然而，通过将我想要“分解”的每个单词分解成它自己的

textView

，至少我可以按照预期的顺序获得“分解”效果

下面的代码将只实现一次预期的动画序列，即下次单击按钮时，动画序列将从43.75px开始，而不是从最初的175.0px开始，并在每次单击时继续以0.25f系数减小。我将修改代码，动态创建并销毁

textView

s，以便稍后解决此问题（现在更新如下）
新的MainActivity.java：

public class MainActivity extends AppCompatActivity { public void explodeThreeTextViews (View view) { int animateDurationExplosion = 1000; float scaleSmall = 0.25f; float scaleFull = 1.0f; float fadeOut = 0f; final float fadeIn = 1f; final TextView tvQuestion = (TextView) findViewById(R.id.question); final TextView tvReady = (TextView) findViewById(R.id.ready); final TextView tvSet = (TextView) findViewById(R.id.set); final TextView tvGo = (TextView) findViewById(R.id.go); float tvReadySizePx = tvReady.getTextSize(); float tvSetSizePx = tvSet.getTextSize(); float tvGoSizePx = tvGo.getTextSize(); Log.i("explodeThreeTextViews", "tvReadySizePx=" + tvReadySizePx + ", tvSetSizePx=" + tvSetSizePx + ", tvGoSizePx=" + tvGoSizePx); tvQuestion.setAlpha(fadeOut); tvReady.setAlpha(fadeOut); tvSet.setAlpha(fadeOut); tvGo.setAlpha(fadeOut); tvQuestion.setText("The question!"); tvReady.setText("Ready"); tvSet.setText("Set"); tvGo.setText("Go!"); tvQuestion.setVisibility(View.GONE); tvReady.setVisibility(View.VISIBLE); tvReady.setTextSize(TypedValue.COMPLEX_UNIT_PX, tvReadySizePx * scaleSmall); tvSet.setTextSize(TypedValue.COMPLEX_UNIT_PX, tvSetSizePx * scaleSmall); tvGo.setTextSize(TypedValue.COMPLEX_UNIT_PX, tvGoSizePx * scaleSmall); Log.i("explodeThreeTextViews", "tvReady.getTextSize=" + tvReady.getTextSize() + ", tvSet.getTextSize=" + tvSet.getTextSize() + ", tvGo.getTextSize=" + tvGo.getTextSize()); ObjectAnimator animateReadyFadeIn = ObjectAnimator.ofFloat(tvReady, "alpha", fadeOut, fadeIn); animateReadyFadeIn.setDuration(animateDurationExplosion); ObjectAnimator animateReadyX = ObjectAnimator.ofFloat(tvReady, "scaleX", scaleFull/scaleSmall); animateReadyX.setDuration(animateDurationExplosion); ObjectAnimator animateReadyY = ObjectAnimator.ofFloat(tvReady, "scaleY", scaleFull/scaleSmall); animateReadyY.setDuration(animateDurationExplosion /* + animateDurationFudge */ ); animateReadyY.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { super.onAnimationEnd(animation); Log.i("onAnimationEnd", "tvReady.getTextSize()=" + tvReady.getTextSize()); //questionDisplay.setAlpha(fadeOut); tvReady.setVisibility(View.GONE); tvSet.setVisibility(View.VISIBLE); //questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall); //Log.i("onAnimationEnd", "after .getTextSize()=" + questionDisplay.getTextSize()); } }); AnimatorSet animateReady = new AnimatorSet(); animateReady.playTogether(animateReadyX, animateReadyY, animateReadyFadeIn); ObjectAnimator animateSetFadeIn = ObjectAnimator.ofFloat(tvSet, "alpha", fadeOut, fadeIn); animateSetFadeIn.setDuration(animateDurationExplosion); ObjectAnimator animateSetX = ObjectAnimator.ofFloat(tvSet, "scaleX", scaleFull/scaleSmall); animateSetX.setDuration(animateDurationExplosion); ObjectAnimator animateSetY = ObjectAnimator.ofFloat(tvSet, "scaleY", scaleFull/scaleSmall); animateSetY.setDuration(animateDurationExplosion /* + animateDurationFudge */ ); animateSetY.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { super.onAnimationEnd(animation); Log.i("onAnimationEnd", "tvSet.getTextSize()=" + tvSet.getTextSize()); //questionDisplay.setAlpha(fadeOut); tvSet.setVisibility(View.GONE); tvGo.setVisibility(View.VISIBLE); //questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall); //Log.i("onAnimationEnd", "after .getTextSize()=" + questionDisplay.getTextSize()); } }); AnimatorSet animateSet = new AnimatorSet(); animateSet.playTogether(animateSetX, animateSetY, animateSetFadeIn); ObjectAnimator animateGoFadeIn = ObjectAnimator.ofFloat(tvGo, "alpha", fadeOut, fadeIn); animateGoFadeIn.setDuration(animateDurationExplosion); ObjectAnimator animateGoX = ObjectAnimator.ofFloat(tvGo, "scaleX", scaleFull/scaleSmall); animateGoX.setDuration(animateDurationExplosion); ObjectAnimator animateGoY = ObjectAnimator.ofFloat(tvGo, "scaleY", scaleFull/scaleSmall); animateGoY.setDuration(animateDurationExplosion /* + animateDurationFudge */ ); animateGoY.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { super.onAnimationEnd(animation); Log.i("onAnimationEnd", "tvGo.getTextSize()=" + tvGo.getTextSize()); //questionDisplay.setAlpha(fadeOut); tvGo.setVisibility(View.GONE); tvQuestion.setVisibility(View.VISIBLE); tvQuestion.setAlpha(fadeIn); //questionDisplay.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSizePx * scaleSmall); //Log.i("onAnimationEnd", "after .getTextSize()=" + questionDisplay.getTextSize()); } }); AnimatorSet animateGo = new AnimatorSet(); animateGo.playTogether(animateGoX, animateGoY, animateGoFadeIn); AnimatorSet animateReadySetGo = new AnimatorSet(); animateReadySetGo.playSequentially(animateReady, animateSet, animateGo); animateReadySetGo.start(); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } }
新的activity_main.xml：

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.plaudev.explodingtext.MainActivity"> <TextView android:layout_width="match_parent" android:layout_height="100dp" android:text="@string/textView" android:id="@+id/textView" android:fontFamily="casual" android:textSize="50sp" android:textStyle="normal|bold" android:textAlignment="center" android:gravity="center" /> <Button android:text="@string/button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/textView" android:layout_centerHorizontal="true" android:layout_marginTop="50dp" android:id="@+id/button" android:background="@color/colourTransparent" android:textAllCaps="false" android:textSize="25sp" android:textStyle="normal|bold" android:fontFamily="casual" android:onClick="actionExplode" android:textColor="@android:color/holo_green_dark" /> </RelativeLayout>

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.plaudev.explodingtext.MainActivity"> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="200dp" android:id="@+id/questionDisplay"> <TextView android:layout_width="match_parent" android:layout_height="100dp" android:text="@string/textView" android:id="@+id/question" android:fontFamily="casual" android:textSize="50sp" android:textStyle="normal|bold" android:textAlignment="center" android:gravity="center" android:layout_weight="1"/> <TextView android:layout_width="match_parent" android:layout_height="100dp" android:text="@string/textView" android:id="@+id/ready" android:fontFamily="casual" android:textSize="50sp" android:textStyle="normal|bold" android:textAlignment="center" android:gravity="center" android:layout_weight="1" android:visibility="gone"/> <TextView android:layout_width="match_parent" android:layout_height="100dp" android:text="@string/textView" android:id="@+id/set" android:fontFamily="casual" android:textSize="50sp" android:textStyle="normal|bold" android:textAlignment="center" android:gravity="center" android:layout_weight="1" android:visibility="gone"/> <TextView android:layout_width="match_parent" android:layout_height="100dp" android:text="@string/textView" android:id="@+id/go" android:fontFamily="casual" android:textSize="50sp" android:textStyle="normal|bold" android:textAlignment="center" android:gravity="center" android:layout_weight="1" android:visibility="gone"/> <Button android:text="@string/button" android:layout_width="match_parent" android:layout_height="50dp" android:id="@+id/button" android:background="@color/colourTransparent" android:textAllCaps="false" android:textSize="25sp" android:textStyle="normal|bold" android:fontFamily="casual" android:onClick="explodeThreeTextViews" android:textColor="@android:color/holo_green_dark" android:layout_weight="1" /> </LinearLayout> </RelativeLayout>
更新：使用动态创建和销毁的视图，以支持基于先前尝试的递归方法重复使用
更新的MainActivity.java-您可以选择使用动画侦听器或倒计时来链接“爆炸”：
更新日志：

I/prepareChainExplosions: textSizeFullPx=175.0 I/prepareChainExplosions: questionDisplay.getChildCount()=7 I/startChainExplosions: explosionIndex=0 I/actionExplode: explosionIndex=0, textSizePx=175.0 I/actionExplode: .getTextSize()=43.75 I/onAnimationEnd: .getTextSize()=43.75 I/actionExplode: explosionIndex=1, textSizePx=175.0 I/actionExplode: .getTextSize()=43.75 I/onAnimationEnd: .getTextSize()=43.75 I/actionExplode: explosionIndex=2, textSizePx=175.0 I/actionExplode: .getTextSize()=43.75 I/startChainExplosions: questionDisplay.getChildCount()=4 I/onAnimationEnd: .getTextSize()=43.75

问题是您的
动画师集
。订购动画时，您过高估计了
AnimatorSet
的智能程度。更直截了当地说：
AnimatorSet
对您没有任何帮助，如果您告诉它两次并行运行，然后告诉它按顺序运行，那么将要发生的就是所有动画同时运行，然后只有顺序调用中引用的第二个动画再次运行（如果有）。您需要做的是为每个动画创建三个
AnimatorSet
实例进入动画，然后在另一个
AnimatorSet
@Xaver，thx中按顺序运行这些
AnimatorSet
s，但仍然没有获得预期的行为
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.plaudev.explodingtext.MainActivity"> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="200dp" android:id="@+id/questionDisplay"> <TextView android:layout_width="match_parent" android:layout_height="match_parent" android:text="@string/textView" android:id="@+id/questionView" android:fontFamily="casual" android:textSize="50sp" android:textStyle="normal|bold" android:layout_weight="1" android:gravity="center" /> <TextView android:layout_width="match_parent" android:layout_height="100dp" android:text="@string/textView" android:id="@+id/readyView" android:fontFamily="casual" android:textSize="50sp" android:textStyle="normal|bold" android:textAlignment="center" android:gravity="center" android:layout_weight="1" android:visibility="gone"/> <TextView android:layout_width="match_parent" android:layout_height="100dp" android:text="@string/textView" android:id="@+id/setView" android:fontFamily="casual" android:textSize="50sp" android:textStyle="normal|bold" android:textAlignment="center" android:gravity="center" android:layout_weight="1" android:visibility="gone"/> <TextView android:layout_width="match_parent" android:layout_height="100dp" android:text="@string/textView" android:id="@+id/goView" android:fontFamily="casual" android:textSize="50sp" android:textStyle="normal|bold" android:textAlignment="center" android:gravity="center" android:layout_weight="1" android:visibility="gone"/> </LinearLayout> <Button android:text="@string/button" android:layout_width="match_parent" android:layout_height="50dp" android:id="@+id/button" android:background="@color/colourTransparent" android:textAllCaps="false" android:textSize="25sp" android:textStyle="normal|bold" android:fontFamily="casual" android:onClick="startChainExplosions" android:textColor="@android:color/holo_green_dark" android:layout_below="@+id/questionDisplay" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" /> </RelativeLayout>

I/prepareChainExplosions: textSizeFullPx=175.0 I/prepareChainExplosions: questionDisplay.getChildCount()=7 I/startChainExplosions: explosionIndex=0 I/actionExplode: explosionIndex=0, textSizePx=175.0 I/actionExplode: .getTextSize()=43.75 I/onAnimationEnd: .getTextSize()=43.75 I/actionExplode: explosionIndex=1, textSizePx=175.0 I/actionExplode: .getTextSize()=43.75 I/onAnimationEnd: .getTextSize()=43.75 I/actionExplode: explosionIndex=2, textSizePx=175.0 I/actionExplode: .getTextSize()=43.75 I/startChainExplosions: questionDisplay.getChildCount()=4 I/onAnimationEnd: .getTextSize()=43.75