团队冲刺第二天

继续开局动画任然有部分未完成

创建一个SplashActivity

package com.example.project1;

import com.example.project1.R;

import android.view.animation.AlphaAnimation;

import android.view.animation.Animation;

import android.view.animation.Animation.AnimationListener;

import android.widget.ImageView;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.WindowManager;

import androidx.appcompat.app.AppCompatActivity;

public class SplashActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);//隐藏状态栏

        getSupportActionBar().hide();//隐藏标题栏

        setContentView(R.layout.activity_splash);

        Thread myThread=new Thread(){//创建子线程

            @Override

            public void run() {

                try{

                    sleep(2000);//使程序休眠两秒

                    Intent it=new Intent(getApplicationContext(),MainActivity.class);//启动MainActivity

                    startActivity(it);

                    finish();//关闭当前活动

                }catch (Exception e){

                    e.printStackTrace();

                }

            }

        };

        myThread.start();//启动线程

    }

}

注意getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);getSupportActionBar().hide();需要在setContentView(R.layout.activity_splash);之前执行

4.修改AndroidManifest

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.project1">

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

        </activity>

        <activity android:name=".SplashActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>