Question

我有一个代表点的图像视图，我使用4个不同的翻译动画来移动它通过屏幕。它的效果非常好，除了每次应用新动画时，它都从图像视图的原始位置开始，而不是前一个动画放置它的最后位置。知道为什么吗？

这是我配置动画的snipet：

public void initializeDotsAnimation(){
        mDotAnimation = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0.0f,
                Animation.RELATIVE_TO_PARENT,-0.28f,Animation.RELATIVE_TO_SELF,0.0f
                ,Animation.RELATIVE_TO_PARENT,-0.28f);
        mDotAnimation.setDuration(500);
        mDotAnimation.setFillAfter(true);
        mDotAnimation1 = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0.0f,
                Animation.RELATIVE_TO_PARENT,-0.21f,Animation.RELATIVE_TO_SELF,0.0f
                ,Animation.RELATIVE_TO_PARENT,-0.21f);
        mDotAnimation1.setDuration(500);
        mDotAnimation1.setFillAfter(true);
        mDotAnimation2 = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0.0f,
                Animation.RELATIVE_TO_PARENT,-0.13f,Animation.RELATIVE_TO_SELF,0.0f
                ,Animation.RELATIVE_TO_PARENT,-0.13f);
        mDotAnimation2.setDuration(500);
        mDotAnimation2.setFillAfter(true);
        mDotAnimation3 = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0.0f,
                Animation.RELATIVE_TO_PARENT,-0.08f,Animation.RELATIVE_TO_SELF,0.0f
                ,Animation.RELATIVE_TO_PARENT,-0.08f);
        mDotAnimation3.setDuration(500);
        mDotAnimation3.setFillAfter(true);
        mDotAnimation4 = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0.0f,
                Animation.RELATIVE_TO_PARENT,-0.02f,Animation.RELATIVE_TO_SELF,0.0f
                ,Animation.RELATIVE_TO_PARENT,-0.02f);
        mDotAnimation4.setDuration(500);
        mDotAnimation4.setFillAfter(true);

    }

这里是在这些动画之间切换的算法

public void aplicarMovimientoDot(double distanciaActual){
    if(distanciaActual>=50){
        //this.moverDot(-0.28f, -0.28f);
        imgDot.startAnimation(mDotAnimation);
    }
    else if(distanciaActual<50 && distanciaActual >=25){
        //this.moverDot(-0.21f, -0.21f);
        imgDot.startAnimation(mDotAnimation1);
    }
    else if(distanciaActual<25 && distanciaActual >=10){
        //this.moverDot(-0.13f, -0.13f);
        imgDot.startAnimation(mDotAnimation2);
    }
    else if(distanciaActual<10 && distanciaActual >=2){
        //this.moverDot(-0.08f, -0.08f);
        imgDot.startAnimation(mDotAnimation3);
    }
    else if(distanciaActual<2){
        //this.moverDot(-0.02f, -0.02f);
        imgDot.startAnimation(mDotAnimation4);
    }
}

最后布局XML，以防需要

<RelativeLayout
    android:id="@+id/hackLayout"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true" >

    <ImageView
        android:id="@+id/imgArrow"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:layout_marginTop="25dp"
        android:src="@drawable/radar" />

    <ImageView
        android:id="@+id/imgDot"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:src="@drawable/dot" />

</RelativeLayout>

EDITED 好吧，在我冷静之后，我发现它始终从同一个地方开始的reazon是因为从初始化每个动画时采取维度。所以我的新问题将是..鉴于这个动画将被不断调用，如果我只保留一个动画的参考，每次我需要翻译它我使用新的翻译（所需的coorinates）？ / p>

翻译动画无法按预期工作

0 个答案: