属性“vendor.camera.aux.packagelist”的访问被拒绝

Question

应用程序运行，但当我尝试使用相机时，只出现一个受干扰的灰色屏幕，日志选项卡给了我两个错误：

E/libc: Access denied finding property "vendor.camera.aux.packagelist"
        Access denied finding property "vendor.camera.aux.packagelist2"

AndroidManifest.xml

E/libc: Access denied finding property "vendor.camera.aux.packagelist"
        Access denied finding property "vendor.camera.aux.packagelist2"

build.gradle（模块：app）

apply plugin: 'com.android.application'
android {
    compileSdkVersion 28
    defaultConfig {
        minSdkVersion 22
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}
dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:recyclerview-v7:28.0.0'
}

build.gradle（项目：相机）

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.4.0'
    }
}
allprojects {
    repositories {
        google()
        jcenter()

    }
}
task clean(type: Delete) {
    delete rootProject.buildDir
}

Answer 1

首先，检查您的Android版本。如果它在 Android 6.0 及更高版本（API 级别 23+）上运行，则您需要：

在应用清单中声明权限。确保在应用程序标签上方插入权限。

<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />

<application ...>
    ...
</application>

然后，请求用户在运行时批准每个权限

if (ContextCompat.checkSelfPermission(context, Manifest.permission.CAMERA) != 
PackageManager.PERMISSION_GRANTED) { 
ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.CAMERA}, 
50); }