3
앱이 있으며 저작권 보호 도구 대신 Google 라이센스를 추가하려고합니다.서버/서비스가없는 상태에서 Android 라이센스 확인 가능
내 문제는 : 장치가 연결할 수 있으면 문제가 없으며 라이센스가 있으면 액세스가 허용됩니다. 장치가 연결할 수 있고 라이센스가없는 경우 액세스가 거부됩니다.
하지만 비행기 모드, 데드 존 등으로 인해 기기를 연결할 수없는 경우 앱에서 허가되지 않은 응답을 제공합니다.
여기 내 코드 : 패키지 "패키지 이름";
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings.Secure;
import android.widget.Toast;
import com.android.vending.licensing.AESObfuscator;
import com.android.vending.licensing.LicenseChecker;
import com.android.vending.licensing.LicenseCheckerCallback;
import com.android.vending.licensing.ServerManagedPolicy;
public class LicenseCheck extends Activity {
private class MyLicenseCheckerCallback implements LicenseCheckerCallback {
@Override
public void allow() {
if (isFinishing()) {
// Don't update UI if Activity is finishing.
return;
}
// Should allow user access.
startMainActivity();
}
@Override
public void applicationError(ApplicationErrorCode errorCode) {
if (isFinishing()) {
// Don't update UI if Activity is finishing.
return;
}
// This is a polite way of saying the developer made a mistake
// while setting up or calling the license checker library.
// Please examine the error code and fix the error.
toast("Error: " + errorCode.name());
startMainActivity();
}
@Override
public void dontAllow() {
if (isFinishing()) {
// Don't update UI if Activity is finishing.
return;
}
// Should not allow access. In most cases, the app should assume
// the user has access unless it encounters this. If it does,
// the app should inform the user of their unlicensed ways
// and then either shut down the app or limit the user to a
// restricted set of features.
// In this example, we show a dialog that takes the user to Market.
showDialog(0);
}
}
private static final String BASE64_PUBLIC_KEY = "MY KEY";
private static final byte[] SALT = new byte[] { "20 RANDOM INTEGERS" };
private LicenseChecker mChecker;
// A handler on the UI thread.
private LicenseCheckerCallback mLicenseCheckerCallback;
private void doCheck() {
mChecker.checkAccess(mLicenseCheckerCallback);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Try to use more data here. ANDROID_ID is a single point of attack.
String deviceId = Secure.getString(getContentResolver(),
Secure.ANDROID_ID);
// Library calls this when it's done.
mLicenseCheckerCallback = new MyLicenseCheckerCallback();
// Construct the LicenseChecker with a policy.
mChecker = new LicenseChecker(this, new ServerManagedPolicy(this,
new AESObfuscator(SALT, getPackageName(), deviceId)),
BASE64_PUBLIC_KEY);
doCheck();
}
@Override
protected Dialog onCreateDialog(int id) {
// We have only one dialog.
return new AlertDialog.Builder(this)
.setTitle("Application Not Licensed")
.setCancelable(false)
.setMessage(
"This application is not licensed. Please purchase it from the Android Market")
.setPositiveButton("Buy App",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
Intent marketIntent = new Intent(
Intent.ACTION_VIEW,
Uri.parse("http://market.android.com/details?id="
+ getPackageName()));
startActivity(marketIntent);
finish();
}
})
.setNegativeButton("Exit",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
finish();
}
}).create();
}
@Override
protected void onDestroy() {
super.onDestroy();
mChecker.onDestroy();
}
private void startMainActivity() {
startActivity(new Intent(this, MY_Activity.class));
finish();
}
public void toast(String string) {
Toast.makeText(this, string, Toast.LENGTH_SHORT).show();
}
}
NO 라이센스 만 제공되면 액세스를 차단할 의지도 있습니다. 앱을 실행하고 서버를 사용할 때마다 확인하는 편이 낫습니다. 서버에 연결할 수 있는지 확인하기 위해 검사를 실행할 수 있다고하더라도.