欢迎界面旋转进入

Posted 2020-12-25 znsongshu

 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rl_welcome_root"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/background"
    tools:context="${relativePackage}.${activityClass}" >

    
    <ProgressBar
        android:id="@+id/pb_welcome_loading"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="50dp"
        android:indeterminateDrawable="@anim/image_progress"
        android:indeterminateDuration="700"/>
    
    <TextView
        android:id="@+id/tv_welcome_version"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_above="@id/pb_welcome_loading"
        android:layout_marginBottom="10dp"
        android:text="当前版本: 1.0"
        android:textSize="20sp" />
    

</RelativeLayout>

---

image_progress.xml

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:drawable="@drawable/progess" >

</rotate>

public class WelcomeActivity extends Activity {

    private RelativeLayout rl_welcome_root;
    private Handler handler  = new Handler(){
        public void handleMessage(android.os.Message msg) {
            if(msg.what==1) {
                startActivity(new Intent(WelcomeActivity.this, SetupGuide1Activity.class));
                //关闭自己
                finish();
            }
        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_welcome);
        
        rl_welcome_root = (RelativeLayout) findViewById(R.id.rl_welcome_root);
        
        //显示动画
        showAnimation();
        
        //发送延迟3s的消息
        handler.sendEmptyMessageDelayed(1, 3000);
    }

    /**
     * 显示动画
     * 
     * 旋转动画  RotateAnimation: 0-->360 视图的中心点 2s
     * 透明度动画 AlphaAnimation: 0-->1 2s
     * 缩放动画 ScaleAnimation: 0-->1 视图的中心点 2s
     */
    private void showAnimation() {
        //旋转动画  RotateAnimation: 0-->360 视图的中心点 2s
        RotateAnimation rotateAnimation = new RotateAnimation(0, 360, 
                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
        rotateAnimation.setDuration(2000);
        //透明度动画 AlphaAnimation: 0-->1 2s
        AlphaAnimation alphaAnimation = new AlphaAnimation(0, 1);
        alphaAnimation.setDuration(2000);
        //缩放动画 ScaleAnimation: 0-->1 视图的中心点 2s
        ScaleAnimation scaleAnimation = new ScaleAnimation(0, 1, 0, 1,
                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
        scaleAnimation.setDuration(2000);
        //创建复合动画,并添加
        AnimationSet animationSet = new AnimationSet(true);
        animationSet.addAnimation(rotateAnimation);
        animationSet.addAnimation(alphaAnimation);
        animationSet.addAnimation(scaleAnimation);
        //启动
        rl_welcome_root.startAnimation(animationSet);
    }
}