Question

我正在做自定义搜索栏，如WhatsApp，谷歌应用程序。我正在尝试添加动画，同时显示和关闭视图。我添加动画XML文件来做这些事情。

假设，如果用户按下搜索图标，它将显示带有动画的搜索栏。如果用户按下搜索栏中的关闭图标，它将关闭带有动画的搜索栏。

动画只在第一次发生。第二次没有动画，就像我按下搜索图标一样。

public class MainActivity extends AppCompatActivity implements Animation.AnimationListener{
ImageButton ibSearch;
EditText etSearch;
ImageButton ibBack,ibClose;
CardView cardView;
ObjectAnimator objectanimator;
RelativeLayout search;
Animation animOpenView,animCloseView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ibSearch = (ImageButton)findViewById(R.id.search);
    cardView = (CardView) findViewById(R.id.searchBarC);
    ibClose = (ImageButton) findViewById(R.id.close);
    search = (RelativeLayout) findViewById(R.id.searchLayout);
    animOpenView = AnimationUtils.loadAnimation(getApplicationContext(),
            R.anim.anim_left);
    animCloseView = AnimationUtils.loadAnimation(getApplicationContext(),
            R.anim.anim_right);

    animCloseView.setAnimationListener(this);
    animOpenView.setAnimationListener(this);

    ibSearch.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            cardView.setVisibility(View.VISIBLE);
            cardView.setAnimation(animOpenView);

        }
    });
    ibClose.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            cardView.setVisibility(View.GONE);
            cardView.setAnimation(animCloseView);
        }
    });
}

@Override
public void onAnimationStart(Animation animation) {

}

@Override
public void onAnimationEnd(Animation animation) {

}

@Override
public void onAnimationRepeat(Animation animation) {

}

任何建议都将不胜感激。

Answer 1

这是因为您的观点已消失

在动画开始之前，您的视图将离开屏幕..

所以欣赏动画只需删除该行..

cardView.setVisibility(View.GONE); // remove this.. cardView.setAnimation(animCloseView);

Answer 2

在您的活动onAnimationEnd：

中尝试此操作

@Override
public void onAnimationEnd(Animation animation) {
    cardView.clearAnimation();
}

Answer 3

问题已解决。实际上，问题是，animCloseView和animOpenView在第一次之后变为空/非空。所以我重新启动了动画。

ibSearch.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                cardView.setVisibility(View.VISIBLE);
                animOpenView = AnimationUtils.loadAnimation(getApplicationContext(),
                        R.anim.anim_left); //just added this line
                cardView.setAnimation(animOpenView);

            }
        });
        ibClose.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                cardView.setVisibility(View.GONE);
                animCloseView = AnimationUtils.loadAnimation(getApplicationContext(),
                        R.anim.anim_right); //just added this line
                cardView.setAnimation(animCloseView);
            }
        });
    }

视图上的动画仅在First Time上发生

3 个答案: