Android 8.1 默认允许应用安装未知应用

Android 8.1 默认允许应用安装未知应用

近来接到项目需求，想要默认允许应用安装未知应用，具体修改参照如下：

/frameworks/base/core/java/android/app/AppOpsManager.java

    private static int[] sOpDefaultMode = new int[] {
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_IGNORED, // OP_WRITE_SMS
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_DEFAULT, // OP_WRITE_SETTINGS
            AppOpsManager.MODE_DEFAULT, // OP_SYSTEM_ALERT_WINDOW
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_DEFAULT, // OP_GET_USAGE_STATS
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_IGNORED, // OP_PROJECT_MEDIA
            AppOpsManager.MODE_IGNORED, // OP_ACTIVATE_VPN
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ERRORED,  // OP_MOCK_LOCATION
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,  // OP_TURN_ON_SCREEN
            AppOpsManager.MODE_ALLOWED,
            AppOpsManager.MODE_ALLOWED,  // OP_RUN_IN_BACKGROUND
            AppOpsManager.MODE_ALLOWED,  // OP_AUDIO_ACCESSIBILITY_VOLUME
            AppOpsManager.MODE_ALLOWED,
-            AppOpsManager.MODE_DEFAULT,  // OP_REQUEST_INSTALL_PACKAGES
+            AppOpsManager.MODE_ALLOWED,  // OP_REQUEST_INSTALL_PACKAGES
            AppOpsManager.MODE_ALLOWED,  // OP_PICTURE_IN_PICTURE
            AppOpsManager.MODE_DEFAULT,  // OP_INSTANT_APP_START_FOREGROUND
            AppOpsManager.MODE_ALLOWED, // ANSWER_PHONE_CALLS
    };

重新编译验证，修改生效，已默认允许应用安装未知应用