Sample code

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

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

    // set user id
    AppSafer.INSTANCE.userId = "ExampleUserId"

    // get user id
    val userId = AppSafer.INSTANCE.userId

    
    // app safer start
    runBlocking {
        AppSafer.INSTANCE.start(applicationContext);

        // get udid
        val udid = AppSafer.INSTANCE.userDeviceId
    }
}

}

</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());
    
                // set user id
                AppSafer.INSTANCE.setUserId("ExampleUserId");
    
                // get user id
                String userId = AppSafer.INSTANCE.getUserId();

                // app safer start
                Thread thread = new Thread(new Runnable() {
                    @Override
                    public void run() {
                        AppSafer.INSTANCE.start(applicationContext);

                        // get udid
                        String udid = AppSafer.INSTANCE.getUserDeviceId();
                    }
                });
                thread.start(); 
	}
}

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
    }
}

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");
}