Sample code

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Sample code

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Available in Classic and VPC

You can find various sample codes to help you use App Safer.

Note

Sample codes for each operating systems are provided in the following languages.

Android: Kotlin, Java
iOS: Swift, Objective-C

Android

You can find sample codes available in Android.

SDK

The sample code that runs App Safer applied with the SDK connection method is as follows:

Kotlin

```kotlin import android.os.Bundle import android.util.Log import androidx.appcompat.app.AppCompatActivity import com.nbp.appsafer.AppSafer import java.io.File import java.util.*

class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)

    // Prevent screenshot
    AppSafer.INSTANCE.preventScreenshot(window)

    // App Safer start
    if (AppSafer.INSTANCE.start(applicationContext) == 0) {
        // setUserId
        AppSafer.INSTANCE.userId = "ExampleUserId"

        // getUserId
        val userId = AppSafer.INSTANCE.userId
        Log.d("AppSafer-UserId", userId)

        // getUdid
        val udid = AppSafer.INSTANCE.userDeviceId
        Log.d("AppSafer-UDID", udid)
    }
}

}


</details>
<details>
<summary>Java</summary>
```java
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import com.nbp.appsafer.AppSafer;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class MainActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		// Prevent screenshot
		AppSafer.INSTANCE.preventScreenshot(getWindow());

		// App Safer start
		if (AppSafer.INSTANCE.start(getApplicationContext()) == 0) {
			// setUserId
			AppSafer.INSTANCE.setUserId("ExampleUserId");

			// getUserId
			String userId = AppSafer.INSTANCE.getUserId();
			Log.d("AppSafer-UserId", userId);

			// getUdid
			String udid = AppSafer.INSTANCE.getUserDeviceId();
			Log.d("AppSafer-UDID", udid);
		}
	}
}

Simple application

The sample code that runs App Safer applied with the simple application method is as follows.

Kotlin

```kotlin import android.app.Activity import android.os.Bundle import com.nbp.appsafer.AppSafer

class MainActivity : Activity() {
private fun getAppSaferInstance(): Any? {
var appSaferInstance: Any? = null
try {
val clazz = Class.forName("com.nbp.appsafer.AppSafer")
val enumConstants = clazz.enumConstants
if ("INSTANCE" == enumConstants[0].toString()) {
appSaferInstance = enumConstants[0]
}
} catch (ignored: Exception) {
// ClassNotFoundException
// IllegalAccessException
}
return appSaferInstance
}

private fun getUserId(): String? {
    var userId: String? = null
    try {
        val appSaferInstance = getAppSaferInstance()
        userId = appSaferInstance?.javaClass?.getDeclaredMethod("getUserId")
            ?.invoke(appSaferInstance) as String?
    } catch (ignored: Exception) {
        // NoSuchMethodException
        // InvocationTargetException
    }
    return userId
}

private fun setUserId(userId: String) {
    try {
        val appSaferInstance = getAppSaferInstance()
        appSaferInstance?.javaClass?.getDeclaredMethod("setUserId", String::class.java)
            ?.invoke(appSaferInstance, userId)
    } catch (ignored: Exception) {
        // NoSuchMethodException
        // InvocationTargetException
    }
}

private fun getUserDeviceId(): String? {
    var udid: String? = null
    try {
        val appSaferInstance = getAppSaferInstance()
        udid = appSaferInstance?.javaClass?.getDeclaredMethod("getUserDeviceId")
            ?.invoke(appSaferInstance) as String?
    } catch (ignored: Exception) {
        // NoSuchMethodException
        // InvocationTargetException
    }
    return udid
}

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    // setUserId
    setUserId("ExampleUserId")

    // getUserId
    val userId = getUserId()

    // getUdid
    val udid = getUserDeviceId()
}

}


</details>
<details>
<summary>Java</summary>
```java
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class MainActivity extends Activity {
	private Object getAppSaferInstance() {
		Object appSaferInstance = null;

		try {
			Class<?> clazz = Class.forName("com.nbp.appsafer.AppSafer");
			Object[] enumConstants = clazz.getEnumConstants();
			if ("INSTANCE".equals(enumConstants[0].toString())) {
				appSaferInstance = enumConstants[0];
			}
		} catch (Exception ignored) {
			// ClassNotFoundException
			// IllegalAccessException
		}

		return appSaferInstance;
	}

	private String getUserId() {
		String userId = null;

		try {
			Object appSaferInstance = getAppSaferInstance();
			userId = (String)appSaferInstance.getClass().getDeclaredMethod("getUserId").invoke(appSaferInstance);
		} catch (Exception ignored) {
			// NoSuchMethodException
			// InvocationTargetException
		}

		return userId;
	}

	private void setUserId(String userId) {
		try {
			Object appSaferInstance = getAppSaferInstance();
			appSaferInstance.getClass().getDeclaredMethod("setUserId", String.class).invoke(appSaferInstance, userId);
		} catch (Exception ignored) {
			// NoSuchMethodException
			// InvocationTargetException
		}
	}

	private String getUserDeviceId() {
		String udid = null;

		try {
			Object appSaferInstance = getAppSaferInstance();
			udid = (String)appSaferInstance.getClass().getDeclaredMethod("getUserDeviceId").invoke(appSaferInstance);
		} catch (Exception ignored) {
			// NoSuchMethodException
			// InvocationTargetException
		}

		return udid;
	}

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

		// setUserId
		setUserId("ExampleUserId");

		// getUserId
		String userId = getUserId();

		// getUdid
		String udid = getUserDeviceId();
    }
}

iOS

Please check sample codes available in iOS.

Reset

The sample code for reset is as follows:

Swift

```swift import SwiftUI

struct ContentView: View {
func initAppSaferExample() {
// APP_SAFER_KEY generated when registering an app to the Console
let result = AppSafer().initAppSafer(AppSaferDelegator.delegator, serviceCode: "ncloud", key: "<APP_SAFER_KEY>")

    NSLog("initAppSafer() result: %d", result);

    if(result == SUCCESS) {
        // init success
    } else if(result == FAIL) {
        // init fail
    }
}

var body: some View {
    Button("initAppSafer") {
        initAppSaferExample()
    }
}

}

class AppSaferDelegator: NSObject, AppSaferDelegate {
static let delegator = AppSaferDelegator()
private override init() {}

func appSaferDidInitFinish(_ result: Int32) {
    print("appSaferDidInitFinish result (result)");
    if(result == BLOCK) {
        print("Device is blocked!");
        // add to exit application logic
    }
}

}


</details>
<details>
<summary>Objective-C</summary>
```objc
#import <AppSaferFramework/AppSaferFramework.h>

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    AppSafer *appSafer = [[AppSafer alloc] init];

    int res = FAIL;
    if(appSafer != nil) {
        // APP_SAFER_KEY generated when registering an app to the Console
        res = [appSafer initAppSafer:self serviceCode:@"ncloud" key:"<APP_SAFER_KEY>"];
        
        NSLog(@"initAppSafer result %d", res);

        if(res == SUCCESS) {
            // init success
        } else if(res == FAIL) {
            // init fail
        }
    } else {
        NSLog(@"AppSafer is nil");
    }
}

- (void)appSaferDidInitFinish:(NSUInteger)result msg:(NSString *)message {
    NSLog(@"appSaferDidInitFinish result %d", result);
    if(result == BLOCK) {
        NSLog(@"Device is blocked!");
        // add to exit application logic
    }
}

Real-time Security detection

The sample code that runs real-time security detection is as follows:

Swift

```swift import SwiftUI

struct ContentView: View {
func checkTamperingExample() {
let result = AppSafer().checkTampering()

    switch(result) {
    case FAIL:
        print("Failed to check tampering")
        break
    case SUCCESS:
        print("Check Tampering Success")
        break
    case BLOCK:
        print("Device is blocked")
        break
    case BEFOREINIT:
        print("AppSafer is not initialized")
        break
    default:
        break
    }
}

var body: some View {
    Button("checkTampering") {
        checkTamperingExample()
    }
}

}

class AppSaferDelegator: NSObject, AppSaferDelegate {
static let delegator = AppSaferDelegator()
private override init() {}

func appSaferDidCheckTamperingFinish(_ result: Int32) {
    print("appSaferDidCheckTamperingFinish result: " + (
          result == FAIL   ? "FAIL" :
          result == SAFE   ? "SAFE" :
          result == DETECT ? "DETECT" :
          result == BLOCK  ? "BLOCK": "UNKNOWN"))

    if(result == BLOCK) {
        print("Device is blocked!")
        // add to exit application logic
    }
}

func appSaferDetectedJailbreak() {
    print("[DETECT] appSaferDetectedJailbreak");
}

func appSaferDetectedSimulator() {
    print("[DETECT] appSaferDetectedSimulator");
}

func appSaferDetectedDebugging() {
    print("[DETECT] appSaferDetectedDebugging");
}

func appSaferDetectedMemoryTampered() {
    print("[DETECT] appSaferDetectedMemoryTampered");
}

}


</details>
<details>
<summary>Objective-C</summary>
```objc
@implementation ViewController

- (IBAction)checkAppSafer:(id)sender {
    AppSafer *appSafer = [[AppSafer alloc] init];
    
    if(appSafer != nil) {
        int res = [appSafer checkTampering];
        
        switch(res) {
            case FAIL:
                NSLog(@"Failed to check tampering");
                break;
            case SUCCESS:
                NSLog(@"Check Tampering Success");
                break;
            case BLOCK:
                NSLog(@"Device is blocked");
                break;
            case BEFOREINIT:
                NSLog(@"AppSafer is not initialized");
                break;
        }
    } else {
        NSLog(@"AppSafer is nil");
    }
}

- (void)appSaferDidCheckTamperingFinish:(int)result {
    if(result == BLOCK) {
        [self.msgbox setText:@"Device is blocked!"];
        // add to exit application
    }

    NSLog(@"appSaferDidCheckTamperingFinish result %@",
          result == FAIL   ? @"FAIL" :
          result == SAFE   ? @"SAFE" :
          result == DETECT ? @"DETECT" :
          result == BLOCK  ? @"BLOCK": @"UNKNOWN");
}

- (void)appSaferDetectedJailbreak {
    NSLog(@"[DETECT] appSaferDetectedJailbreak");
}

- (void)appSaferDetectedSimulator {
    NSLog(@"[DETECT] appSaferDetectedSimulator");
}

- (void)appSaferDetectedDebugging {
    NSLog(@"[DETECT] appSaferDetectedDebugging");
}

- (void)appSaferDetectedMemoryTampered {
    NSLog(@"[DETECT] appSaferDetectedMemoryTampered");
}

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