卫星效果的实现（上下方向）

来源：互联网发布：游戏监测软件编辑：程序博客网时间：2024/05/20 16:13

最近看了一下卫星效果，觉得不错，就写了一个简单入门的上下方向的。

废话不多说，直接上代码

public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private View iv_root;    private View iv_robot;    private View iv_voice;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();        initListener();    }    private void initView() {        iv_root = findViewById(R.id.iv_root);        iv_robot = findViewById(R.id.iv_robot);        iv_voice = findViewById(R.id.iv_voice);    }    private void initListener() {        iv_root.setOnClickListener(this);        iv_robot.setOnClickListener(this);        iv_voice.setOnClickListener(this);    }    boolean isopen;    @Override    public void onClick(View view) {        switch (view.getId()){            case R.id.iv_root:                if(!isopen){                    starAnim();                }else{                    closeAnim();                }                isopen=!isopen;                break;            case R.id.iv_robot:                Toast.makeText(this, "我是机器人", Toast.LENGTH_SHORT).show();                break;            case R.id.iv_voice:                Toast.makeText(this, "我是语音", Toast.LENGTH_SHORT).show();                break;        }    }    /**     * 打开动画的操作     */    private void starAnim() {        iv_voice.setVisibility(View.VISIBLE);        iv_robot.setVisibility(View.VISIBLE);        int y1=dip2px(50);        int y2=dip2px(100);        ObjectAnimator animator1=ObjectAnimator.ofFloat(iv_voice,"translationY",0,-y1);        ObjectAnimator animator2=ObjectAnimator.ofFloat(iv_robot,"translationY",0,-y2);        ObjectAnimator animator3=ObjectAnimator.ofFloat(iv_root,"rotation",0,45);        animator1.setInterpolator(new AccelerateDecelerateInterpolator());        animator2.setInterpolator(new AccelerateDecelerateInterpolator());        AnimatorSet set=new AnimatorSet();        set.playTogether(animator1,animator2,animator3);        set.setDuration(500);//设置动画时间        set.start();    }    /**     * 关闭动画的操作     */    private void closeAnim() {        int y1=dip2px(50);        int y2=dip2px(100);        ObjectAnimator animator1=ObjectAnimator.ofFloat(iv_voice,"translationY",-y1,0);        ObjectAnimator animator2=ObjectAnimator.ofFloat(iv_robot,"translationY",-y2,0);        ObjectAnimator animator3=ObjectAnimator.ofFloat(iv_root,"rotation",45,0);        animator1.setInterpolator(new AccelerateDecelerateInterpolator());        animator2.setInterpolator(new AccelerateDecelerateInterpolator());        AnimatorSet set=new AnimatorSet();        set.playTogether(animator1,animator2,animator3);        set.setDuration(500);//设置动画时间        set.start();        set.addListener(new Animator.AnimatorListener() {            @Override            public void onAnimationStart(Animator animator) {            }            @Override            public void onAnimationEnd(Animator animator) {                iv_voice.setVisibility(View.GONE);                iv_robot.setVisibility(View.GONE);            }            @Override            public void onAnimationCancel(Animator animator) {            }            @Override            public void onAnimationRepeat(Animator animator) {            }        });    }    /**     * 根据手机的分辨率从 dp 的单位 转成为 px(像素)     */    public int dip2px(float dpValue) {        final float scale =getResources().getDisplayMetrics().density;        return (int) (dpValue * scale + 0.5f);    }}

布局文件

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main"    android:layout_width="match_parent" android:layout_height="match_parent"    tools:context="count.buma.com.textdemo.MainActivity">    <ImageView        android:id="@+id/iv_robot"        android:layout_width="40dp"        android:layout_height="40dp"        android:layout_alignParentBottom="true"        android:layout_alignParentRight="true"        android:visibility="gone"        android:src="@mipmap/robot"        />    <ImageView        android:id="@+id/iv_voice"        android:layout_width="40dp"        android:layout_height="40dp"        android:layout_alignParentBottom="true"        android:layout_alignParentRight="true"        android:visibility="gone"        android:src="@mipmap/voice"        />    <ImageView        android:id="@+id/iv_root"        android:layout_width="40dp"        android:layout_height="40dp"        android:layout_alignParentBottom="true"        android:layout_alignParentRight="true"        android:src="@mipmap/add"        /></RelativeLayout>

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