Android好看的动画欢迎界面（附有详细代码）

首先来演示一下视频效果

从视频效果中我们可以看到，这个欢迎界面的效果还是不错的，感兴趣的可以尝试一下，比较简单，下面会给出具体代码实现。

main_activity.xml

"1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:orientation="vertical"
    android:background="#1f1f1d">
 
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
 
        <View
            android:id="@+id/first_line"
            android:layout_width="20dp"
            android:layout_height="50dp"
            android:layout_centerHorizontal="true"
            android:background="@color/white"/>
 
        <View
            android:id="@+id/second_line"
            android:layout_width="20dp"
            android:layout_height="100dp"
            android:layout_toRightOf="@+id/first_line"
            android:layout_marginLeft="8dp"
            android:background="#ff0000"/>
 
        <View
            android:id="@+id/third_line"
            android:layout_width="20dp"
            android:layout_height="250dp"
            android:layout_toRightOf="@+id/second_line"
            android:layout_marginLeft="8dp"
            android:background="@color/white"/>
 
        <View
            android:id="@+id/fourth_line"
            android:layout_width="20dp"
            android:layout_height="200dp"
            android:layout_toRightOf="@+id/third_line"
            android:layout_marginLeft="8dp"
            android:background="#ff0000"/>
 
        <View
            android:id="@+id/fifth_line"
            android:layout_width="20dp"
            android:layout_height="220dp"
            android:layout_toRightOf="@+id/fourth_line"
            android:layout_marginLeft="8dp"
            android:background="@color/teal_200"/>
 
        <View
            android:id="@+id/six_line"
            android:layout_width="20dp"
            android:layout_height="150dp"
            android:layout_toRightOf="@+id/fifth_line"
            android:layout_marginLeft="8dp"
            android:background="@color/white"/>
 
    RelativeLayout>
 
 
    <RelativeLayout
        android:layout_marginTop="50dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
 
        <TextView
            android:id="@+id/a"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:text="智能基座"
            android:textColor="@color/white"
            android:textSize="60sp"
            android:textStyle="italic"/>
    RelativeLayout>
 
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
 
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom">
 
        <TextView
            android:id="@+id/tagLine"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="50dp"
            android:text="Andorid Developer"
            android:textColor="#fff"
            android:textSize="24sp" />
    RelativeLayout>
    LinearLayout>
LinearLayout>

以上是xml文件的实现代码，总的来说还是比较简洁的，使用了LinearLayout，RelativeLayout布局方式，实现出来的静态效果如下所示

 想要实现动态效果，我们需要在MainActivity.java文件中去添加相关动画的配置，代码如下

MainActivity.java

package com.example.welcometest;
 
import androidx.appcompat.app.AppCompatActivity;
 
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.WindowManager;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.TextView;
 
public class MainActivity extends AppCompatActivity {
 
    View first,second,third,forth,fifth,sixth;
    TextView a,tagline;
 
    Animation topAnimation,bottomAnimation,middleAnimation;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_main);
 
        topAnimation = AnimationUtils.loadAnimation(this,R.anim.top_ani);
        bottomAnimation = AnimationUtils.loadAnimation(this,R.anim.bottm_ani);
        middleAnimation = AnimationUtils.loadAnimation(this,R.anim.middle_ani);
 
 
        first = findViewById(R.id.first_line);
        second = findViewById(R.id.second_line);
        third = findViewById(R.id.third_line);
        forth = findViewById(R.id.fourth_line);
        fifth = findViewById(R.id.fifth_line);
        sixth = findViewById(R.id.six_line);
 
        a = findViewById(R.id.a);
        tagline = findViewById(R.id.tagLine);
 
        first.setAnimation(topAnimation);
        second.setAnimation(topAnimation);
        third.setAnimation(topAnimation);
        forth.setAnimation(topAnimation);
        fifth.setAnimation(topAnimation);
        sixth.setAnimation(topAnimation);
 
        a.setAnimation(middleAnimation);
        tagline.setAnimation(bottomAnimation);
 
        //跳转时间
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                Intent intent = new Intent(MainActivity.this,MainActivity2.class);
                startActivity(intent);
                finish();
            }
        },3000);
    }
}

我们发现，MainActivity,java中有相关的配置文件，配置文件在这里给出

        1、首先第一步，我们需要在res目录下新建资源文件夹anim

         2、然后我们在这个目录下新建三个anim资源文件，用来配置动画效果

top_ani.xml

"1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
 
    <translate
        android:duration = "1500"
        android:fromYDelta="-500%"
        android:fromXDelta="0%"/>
 
    <alpha
        android:fromAlpha="0.1"
        android:toAlpha="1.0"
        android:duration = "1500"
        />
set>

bottom_ani.xml

"1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration = "1500"
        android:fromYDelta="100%"
        android:fromXDelta="0%"/>
 
    <alpha
        android:fromAlpha="0.1"
        android:toAlpha="1.0"
        android:duration = "1500"
        />
set>

middle_ani.xml

"1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration = "1500"
        android:fromYDelta="0%"
        android:fromXDelta="-200%"/>
 
    <alpha
        android:fromAlpha="0.1"
        android:toAlpha="1.0"
        android:duration = "1500"
        />
set>

以上三个xml资源文件就是MainActivity.java中需要的族源文件。

这样就可以成功运行了，大家要是想要效果比较好的话，记得去设置theme为NoActionBar