Android按钮在动画后没有响应

Question

在我的应用程序中当前按下按钮后,我有一个按钮的基本动画.按钮完成动画后,我再也无法点击它了.它甚至没有按橙色突出显示.

有帮助吗？

这是我的代码:

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

animation = new AnimationSet(true);
animation.setFillAfter(true);
Animation translate = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 5.0f);
translate.setDuration(500);
animation.addAnimation(translate);

LayoutAnimationController controller = new LayoutAnimationController(animation, 0.25f);


generate = (Button)findViewById(R.id.Button01);

generate.setOnClickListener(new View.OnClickListener(){
    public void onClick(View v){
            keyFromTop();

        }
    });


}

public void keyFromTop(){   
    generate.setAnimation(animation);    
}

Answer 1

动画仅影响窗口小部件的绘制,这意味着在动画完成后,您的按钮仍处于其先前位置.如果要将按钮移动到新位置,则需要手动更新按钮的布局参数.此外,您的AnimationSet和您的AnimationController都没用.

Answer 2

如果您希望能够在动画完成后单击该按钮,则必须手动移动该组件.以下是应用于按钮的翻译动画示例:

public class Test2XAnimation extends Activity {

    private RelativeLayout buttonContainer;

    private Button button;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        button = (Button) this.findViewById(R.id.button1);
        buttonContainer = (RelativeLayout) button.getParent();
    }

    public void startTapped(View view) {
        animateButton(200, 100);
    }

    public void buttonTapped(View view) {
        Toast.makeText(this, "tap", Toast.LENGTH_SHORT).show();
    }

    private RelativeLayout.LayoutParams params;
    private CharSequence title;

    private void animateButton(final int translateX, final int translateY) {
        TranslateAnimation translate = new TranslateAnimation(0, translateX, 0,
                translateY);
        translate.setDuration(1500);
        translate.setAnimationListener(new AnimationListener() {

            public void onAnimationEnd(Animation animation) {
                buttonContainer.removeView(button);
                button = new Button(Test2XAnimation.this);
                button.setText(title);
                button.setOnClickListener(new OnClickListener() {

                    public void onClick(View v) {
                        buttonTapped(button);
                    }
                });

                params.leftMargin = translateX + params.leftMargin;
                params.topMargin = translateY + params.topMargin;
                params.rightMargin = 0 + params.rightMargin;
                params.bottomMargin = 0 + params.bottomMargin;
                button.setLayoutParams(params);
                buttonContainer.addView(button);
            }

            public void onAnimationRepeat(Animation animation) {

            }

            public void onAnimationStart(Animation animation) {
                params = (RelativeLayout.LayoutParams) button.getLayoutParams();

                title = button.getText();
            }

        });
        button.startAnimation(translate);
    }
}

当用户单击UI中的按钮时,将触发startTapped()方法.另一个按钮移动(200,100).最后,我删除旧的并创建一个新的,然后将其添加到父视图.您可以看到在动画后调用buttonTapped().

建议:如果要同时支持动画组件的新旧方法,可以使用NineOldAndroids项目,然后可以检查操作系统版本并仅在Gingerbread及更低版本上运行此代码.