背景

读取壁纸图片，在阳光沙滩上一个版本中我是用的Android官方lib是比较的，appcompat 1.3.1读取壁纸使用的权限是READ_MEDIA_IMAGES，为什么？这是as给我的提示，申请这个权限可以读取。低版本继续使用READ_EXTERNAL_STORAGE。

也就是在配置文件声明

xml

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<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="32"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />

当运行时判断当前是不是Android14，如果是申请READ_MEDIA_IMAGES，不是申请上面的。
在旧版lib中编译代码申请权限正常，读取也是正常。升级了ktx,appcompat等组件后居然直接崩溃了。

崩溃信息

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Process: com.example.a202422, PID: 6160
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.a202422/com.example.a202422.MainActivity}: java.lang.SecurityException: Permission android.permission.READ_EXTERNAL_STORAGE denied for package com.example.a202422
	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4084)
	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4244)
	at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:103)
	at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:149)
	at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:99)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2657)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loopOnce(Looper.java:222)
	at android.os.Looper.loop(Looper.java:314)
	at android.app.ActivityThread.main(ActivityThread.java:8816)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:569)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1090)
Caused by: java.lang.SecurityException: Permission android.permission.READ_EXTERNAL_STORAGE denied for package com.example.a202422
	at android.os.Parcel.createExceptionOrNull(Parcel.java:3057)
	at android.os.Parcel.createException(Parcel.java:3041)
	at android.os.Parcel.readException(Parcel.java:3024)
	at android.os.Parcel.readException(Parcel.java:2966)
	at android.app.IWallpaperManager$Stub$Proxy.getWallpaperWithFeature(IWallpaperManager.java:1011)
	at android.app.WallpaperManager$Globals.getCurrentWallpaperLocked(WallpaperManager.java:770)
	at android.app.WallpaperManager$Globals.peekWallpaperBitmap(WallpaperManager.java:667)
	at android.app.WallpaperManager$Globals.peekWallpaperBitmap(WallpaperManager.java:634)
	at android.app.WallpaperManager.getDrawable(WallpaperManager.java:1008)
	at android.app.WallpaperManager.getDrawable(WallpaperManager.java:970)
	at com.example.a202422.MainActivity.onCreate(MainActivity.kt:42)
	at android.app.Activity.performCreate(Activity.java:8894)
	at android.app.Activity.performCreate(Activity.java:8859)
	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1470)
	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4066)
	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4244) 
	at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:103) 
	at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:149) 
	at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:99) 
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2657) 
	at android.os.Handler.dispatchMessage(Handler.java:106) 
	at android.os.Looper.loopOnce(Looper.java:222) 
	at android.os.Looper.loop(Looper.java:314) 
	at android.app.ActivityThread.main(ActivityThread.java:8816) 
	at java.lang.reflect.Method.invoke(Native Method) 
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:569) 
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1090) 
Caused by: android.os.RemoteException: Remote stack trace:
	at android.os.storage.StorageManager.checkPermissionAndAppOp(StorageManager.java:1828)
	at android.os.storage.StorageManager.checkPermissionAndAppOp(StorageManager.java:1805)
	at android.os.storage.StorageManager.checkPermissionAndAppOp(StorageManager.java:1875)
	at android.os.storage.StorageManager.checkExternalStoragePermissionAndAppOp(StorageManager.java:1943)
	at android.os.storage.StorageManager.checkPermissionReadImages(StorageManager.java:1920)

从这个信息中很容易找到原因，Permission android.permission.READ_EXTERNAL_STORAGE denied for package com.example.a202422
就说我没申请权限，但是，但是：

kotlin

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defaultConfig {
    applicationId = "com.example.a202422"
    minSdk = 26
    targetSdk = 35
    versionCode = 1
    versionName = "1.0"
    testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"

我的设备是Android14红米Note14 pro，编译的target 35（Android15），不管34还是35都是一样的，我已经超过32，不应该申请READ_EXTERNAL_STORAGE权限，这个权限最大支持32（理论上），特别上架谷歌要小心写权限范围。

好吧，既然你需要这个权限我就申请试试。

xml

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<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

直接声明，也不设置max了。

kotlin

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val permissions = arrayOf(
    Manifest.permission.READ_EXTERNAL_STORAGE,
)
for (permission in permissions) {
    if (ContextCompat.checkSelfPermission(
            this,
            permission
        ) != PackageManager.PERMISSION_GRANTED
    ) {
        ActivityCompat.requestPermissions(this, permissions, 200)
        return
    }
}

跑起来，居然把授权拉起来了，真有你的澎湃OS，还能申请。我直接同意。
图片描述

就离谱？？？？？？？？？？？？？？？？？？？？？？？？？？