我试图检测何时使用BroadcastReceiver升级了我的应用程序，并在我的应用程序类中设置了一个 boolean 值。该 boolean 值将与其他几个 boolean 值一起使用，以确定是否向用户显示EULA对话框。
我相信我已经正确设置了所有设置，但是EULA仍然会在不应该设置的情况下显示出来。具体来说，当用户已经接受了先前版本中的EULA时，EULA不会在要升级到的版本中更改(由我手动设置)，并且正在升级应用程序。
我认为这不起作用的原因是因为我的应用程序未运行，因此未调用isAppUpgrade()方法并设置了正确的 boolean 标志。有人可以确认是这种情况，还是我的代码有问题？
仅供引用-EULA.show(Activity，boolean，boolean)静态方法在我的Main Activity 中被称为第一件事。
这是一些代码
应用程序类
public class MFCApplication extends Application {
private boolean isUpgrade = false;
/**
* Returns a manually set value of whether the EULA has changed in this version of the App
* @return true/false
*/
public boolean hasEULAChanged() {
return false;
}
/**
* Returns whether or not the application has been upgraded. Set by the UpgradeBroadcastReceiver
* @return true/false
*/
public boolean isAppUpgrade() {
return isUpgrade;
}
/**
* Method called by UpgradeBroadcastReceiver if the App has been upgraded
*/
public void setAppIsUpgrade() {
this.isUpgrade = true;
}
}
BroadcastReceiver
public class UpgradeBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (intent == null)
return;
if (context == null)
return;
String action = intent.getAction();
if (action == null)
return;
if (action.equals(Intent.ACTION_PACKAGE_REPLACED)) {
MFCApplication myApp = ((MFCApplication)((Activity)context).getApplication());
myApp.setAppIsUpgrade();
}
}
}
EULA类
public class EULA {
private static final String EULA_ASSET = "EULA";
private static final String EULA_PREFERENCES = "eula";
private static Activity mActivity;
private static PackageInfo getPackageInfo() {
PackageInfo pi = null;
try {
pi = mActivity.getPackageManager().getPackageInfo(mActivity.getPackageName(), PackageManager.GET_ACTIVITIES);
} catch (PackageManager.NameNotFoundException ex) {
ex.printStackTrace();
}
return pi;
}
public static boolean show(Activity activity, boolean hasEULAChanged, boolean isAppUpgrade) {
mActivity = activity;
final SharedPreferences preferences = activity.getSharedPreferences(EULA_PREFERENCES, Activity.MODE_PRIVATE);
final PackageInfo packageInfo = getPackageInfo();
String eulaPref = preferences.getString(EULA_PREFERENCES, "0");
boolean eulaVersionAccepted = packageInfo.versionName.equals(eulaPref);
if (!eulaVersionAccepted && (hasEULAChanged || !isAppUpgrade)) {
//The EULA should be shown here, but it isn't
return false;
}
return true;
}
}
申请 list
<receiver android:name=".helpers.UpgradeBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REPLACED" />
<data android:scheme="package" android:path="com.hookedroid.fishingcompanion" />
</intent-filter>
</receiver>
最佳答案
仅检查您当前的应用程序版本会容易得多。
PackageInfo packageInfo = activity.getPackageManager()
.getPackageInfo(activity.getPackageName(), 0);
int versionCode = packageInfo.versionCode;
应用启动时，您将使用版本代码检查SharedPreferences中的整数值。如果没有，或者不匹配，则显示EULA。用户接受EULA之后，将versionCode值写入SharedPreferences。
versionCode将与您在 list 中存储的版本号匹配。