Android 活动在工作过程中关闭，并将其重定向到上一个活动

我创建了贷款调查应用程序。在每次调查中，显示了80到90个问题。当他按下“下一步”按钮时，问题会一个接一个地显示出来。r以编程方式创建的视图，在提交每个问题后，我已删除该视图并创建另一个视图

很好，但我的问题是， 当我在第30到40个问题中时，我的活动突然结束并重定向到上一个活动。即使它也不执行onPause方法。我不知道是什么问题。也没有应用程序崩溃。我不知道这是由于内存错误还是其他原因造成的。请任何人建议我如何解决它

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提前感谢

以下是我结合和的答案所能达到的程度

MyAnimation.java

package com.example.tempp;

import android.view.View;
import android.view.animation.Animation;
import android.view.animation.Transformation;

public class MyAnimation extends Animation {

    private View view;
    private float cx, cy;           // center x,y position of circular path
    private float prevX, prevY;     // previous x,y position of image during animation
    private float r;                // radius of circle


    /**
     * @param view - View that will be animated
     * @param r - radius of circular path
     */
    public MyAnimation(View view, float r){
        this.view = view;
        this.r = r;
    }

    @Override
    public boolean willChangeBounds() {
        return true;
    }

    @Override
    public void initialize(int width, int height, int parentWidth, int parentHeight) {
        // calculate position of image center
        int cxImage = width / 2;
        int cyImage = height / 2;
        cx = view.getLeft() + cxImage;
        cy = view.getTop() + cyImage;

        // set previous position to center
        prevX = cx;
        prevY = cy;
    }

    @Override
    protected void applyTransformation(float interpolatedTime, Transformation t) {
        if(interpolatedTime == 0){
            // I ran into some issue where interpolated would be
            return;
        }

        float angleDeg = (interpolatedTime * 360f + 90) % 360;
        float angleRad = (float) Math.toRadians(angleDeg);

        // r = radius, cx and cy = center point, a = angle (radians)
        float x = (float) (cx + r * Math.cos(angleRad));
        float y = (float) (cy + r * Math.sin(angleRad));


        float dx = prevX - x;
        float dy = prevY - y;

        prevX = x;
        prevY = y;

        t.getMatrix().setTranslate(dx, dy);
    }
}

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希望这有帮助。

你是说类似的东西吗？不是那样的。。。检查上面的图片，它应该是顺时针旋转地球仪将如何在三维旋转。神秘的魔法告诉我们如何在3d中旋转。提前感谢使用您的代码，它将离开它的位置。是否要在同一位置设置图像动画？或者想要它的位置以圆周运动的方式改变？是的。以圆周运动在同一位置设置图像动画。请尝试使用我的帖子

package com.example.tempp;

import android.view.View;
import android.view.animation.Animation;
import android.view.animation.Transformation;

public class MyAnimation extends Animation {

    private View view;
    private float cx, cy;           // center x,y position of circular path
    private float prevX, prevY;     // previous x,y position of image during animation
    private float r;                // radius of circle


    /**
     * @param view - View that will be animated
     * @param r - radius of circular path
     */
    public MyAnimation(View view, float r){
        this.view = view;
        this.r = r;
    }

    @Override
    public boolean willChangeBounds() {
        return true;
    }

    @Override
    public void initialize(int width, int height, int parentWidth, int parentHeight) {
        // calculate position of image center
        int cxImage = width / 2;
        int cyImage = height / 2;
        cx = view.getLeft() + cxImage;
        cy = view.getTop() + cyImage;

        // set previous position to center
        prevX = cx;
        prevY = cy;
    }

    @Override
    protected void applyTransformation(float interpolatedTime, Transformation t) {
        if(interpolatedTime == 0){
            // I ran into some issue where interpolated would be
            return;
        }

        float angleDeg = (interpolatedTime * 360f + 90) % 360;
        float angleRad = (float) Math.toRadians(angleDeg);

        // r = radius, cx and cy = center point, a = angle (radians)
        float x = (float) (cx + r * Math.cos(angleRad));
        float y = (float) (cy + r * Math.sin(angleRad));


        float dx = prevX - x;
        float dy = prevY - y;

        prevX = x;
        prevY = y;

        t.getMatrix().setTranslate(dx, dy);
    }
}