splash界面添加动画

1、添加animation layout

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration = "2000"
        android:fromXDelta="0%p"
        android:fromYDelta="0%p"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:toXDelta="0%p"
        android:toYDelta="50%p"
        />
</set>

2、为控件添加动画

 val splashAnimation = AnimationUtils.loadAnimation(this,R.anim.anim_splash)
        splashBinding.tvAppName.animation = splashAnimation

3、动画结束跳转到MainActivity

            override fun onAnimationEnd(p0: Animation?) {
                Handler(Looper.getMainLooper()).postDelayed({
                    startActivity(Intent(this@SplashActivity,MainActivity::class.java))
                    finish()
                },1000)
            }

SplashActivity代码

package com.dummy.mykotlin2

import android.content.Intent
import android.os.Build
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.os.Handler
import android.os.Looper
import android.view.WindowInsets
import android.view.WindowManager
import android.view.animation.Animation
import android.view.animation.AnimationUtils
import com.dummy.mykotlin2.databinding.ActivitySplashBinding

class SplashActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)


        val splashBinding:ActivitySplashBinding = ActivitySplashBinding.inflate(layoutInflater);
        setContentView(splashBinding.root)

        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.R){
            window.insetsController?.hide(WindowInsets.Type.statusBars())
        }else{
            @Suppress("DEPRECATION")
            window.setFlags(
                WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN
            )
        }

        val splashAnimation = AnimationUtils.loadAnimation(this,R.anim.anim_splash)
        splashBinding.tvAppName.animation = splashAnimation

        splashAnimation.setAnimationListener(object : Animation.AnimationListener{
            override fun onAnimationStart(p0: Animation?) {
            }

            override fun onAnimationEnd(p0: Animation?) {
                Handler(Looper.getMainLooper()).postDelayed({
                    startActivity(Intent(this@SplashActivity,MainActivity::class.java))
                    finish()
                },1000)
            }

            override fun onAnimationRepeat(p0: Animation?) {
            }

        })



    }
}

注：

如果控件如果有如下代码去掉

        app:layout_constraintBottom_toBottomOf="parent"