Question

我是android的新手。我使用Spring Animation。我希望图像缓慢下降

public void onAnimationStart(View view) {
    Display display = getWindowManager().getDefaultDisplay();
    Point size = new Point();
    display.getSize(size);
    width = size.x;
    height = size.y;
    float y = 0;
    do {
        view1.setTranslationY(y);
        SpringAnimation animY = new SpringAnimation(view1,
                DynamicAnimation.TRANSLATION_Y, 0);
        //animY.setStartVelocity(10);
        animY.getSpring().setStiffness(SpringForce.STIFFNESS_VERY_LOW);
        animY.getSpring().setDampingRatio(SpringForce.DAMPING_RATIO_LOW_BOUNCY);
        animY.start();
        y+=1;
        Log.d("TAG", "getTranslationX= " + String.valueOf(view1.getTranslationX()) + " getTranslationY = " + String.valueOf(view1.getTranslationY()));
    } while (y < height);

Answer 1

//This is just a regular POJO class.
class Employee {

    int valA;
    String valB, valC;

    public Employee(int valA, String valB, String valC){
        this.valA = valA;
        this.valB = valB;
        this.valC = valC;
    }

    public Employee(Employee e) {
        this.valA = e.valA;
        this.valB = e.valB;
        this.valC = e.valC;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + valA;
        result = prime * result + ((valB == null) ? 0 : valB.hashCode());
        result = prime * result + ((valC == null) ? 0 : valC.hashCode());
        return result;
    }
    @Override
    public boolean equals(Object obj) {

        if(obj instanceof Employee && ((Employee)obj).hashCode() == this.hashCode()){
            return true;
        }

        return false;
    }

    @Override
    public String toString() {
        return "Employee [valA=" + valA + ", valB=" + valB + ", valC=" + valC + "]";
    }
}

如何实现使用基于物理的API构建的动画

1 个答案: