Android闪屏splash

res

├─drawable
├────logo.jpg
├─layout
├────activity_splash.xml

activity_splash.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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=".SplashActivity"
    android:fitsSystemWindows="false">
 
    <RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center">
        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:src="@drawable/logo"
            android:scaleType="centerCrop"/>
    </RelativeLayout>
 
</androidx.constraintlayout.widget.ConstraintLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.xx.xxx"
    android:installLocation="auto">

    <application>
        
        <activity
            android:name="com.xx.xxx.SplashActivity"
            android:screenOrientation="portrait"
            android:configChanges="orientation|keyboardHidden|screenSize|screenLayout|uiMode"
            android:label="@string/app_name"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
            android:launchMode="singleTask"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

        <activity 
            android:name="com.xx.xxx.AppActivity" 
            android:screenOrientation="portrait"
            android:configChanges="orientation|keyboardHidden|screenSize|screenLayout|uiMode"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
            android:launchMode="singleTask"
            android:exported="true"
        />
        
    </application>

</manifest>

SplashActivity.java

package com.xx.xxx;

import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.WindowManager;

import com.xx.xxx.R;

public class SplashActivity extends Activity {

    private static final int SPLASH_DISPLAY_LENGTH = 1000; // 闪屏页面显示时长

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        getWindow().getDecorView().setSystemUiVisibility(
            View.SYSTEM_UI_FLAG_LAYOUT_STABLE
            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION  // 隐藏导航栏
            | View.SYSTEM_UI_FLAG_FULLSCREEN       // 隐藏状态栏
            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY // 进入沉浸模式
        );
        // 确保内容覆盖刘海区域
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.P) {
            WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
            layoutParams.layoutInDisplayCutoutMode = WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES;
            getWindow().setAttributes(layoutParams);
        }
        setContentView(R.layout.activity_splash);

        ActionBar actionBar = getActionBar();
        if (actionBar != null) {
            actionBar.hide();
        }

        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                Intent mainIntent = new Intent(SplashActivity.this, AppActivity.class);
                startActivity(mainIntent);
                finish();
            }
        }, SPLASH_DISPLAY_LENGTH);
    }
}