Java Activity.getCallingActivity方法代碼示例

import android.app.Activity; //導入方法依賴的package包/類
/**
 * Extracts the set of authentication domains for the caller of the provided activity.
 */
@NonNull
public static Set<AuthenticationDomain> extractCallerAuthDomains(@NonNull Activity activity) {
    ComponentName callingActivity = activity.getCallingActivity();
    if (callingActivity == null) {
        return Collections.emptySet();
    }

    String callingPackage = callingActivity.getPackageName();
    AuthenticationDomain authenticationDomain =
            AuthenticationDomain.fromPackageName(activity, callingPackage);
    if (null == authenticationDomain) {
        return Collections.EMPTY_SET;
    }

    return new HashSet<>(Arrays.asList(authenticationDomain));
}
 

import android.app.Activity; //導入方法依賴的package包/類
private void initializeCallingPackage(final Activity activity) {
    ComponentName componentName = activity.getCallingActivity();
    if (componentName == null) {
        return;
    }
    callingPackage = componentName.getPackageName();
}
 

import android.app.Activity; //導入方法依賴的package包/類
public static ComponentName getCallingActivity(Activity calledActivity) {
    ComponentName result = calledActivity.getCallingActivity();
    if (result == null) {
        return (ComponentName) calledActivity.getIntent().getParcelableExtra(EXTRA_CALLING_ACTIVITY);
    }
    return result;
}
 

import android.app.Activity; //導入方法依賴的package包/類
/**
 * Source Application setters and getters
 */
private static void setSourceApplication(Activity activity) {

    ComponentName callingApplication = activity.getCallingActivity();
    if (callingApplication != null) {
        String callingApplicationPackage = callingApplication.getPackageName();
        if (callingApplicationPackage.equals(activity.getPackageName())) {
            // open by own app.
            resetSourceApplication();
            return;
        }
        sourceApplication = callingApplicationPackage;
    }

    // Tap icon to open an app will still get the old intent if the activity was opened by an
    // intent before. Introduce an extra field in the intent to force clear the
    // sourceApplication.
    Intent openIntent = activity.getIntent();
    if (openIntent == null ||
            openIntent.getBooleanExtra(SOURCE_APPLICATION_HAS_BEEN_SET_BY_THIS_INTENT, false)) {
        resetSourceApplication();
        return;
    }

    Bundle applinkData = AppLinks.getAppLinkData(openIntent);

    if (applinkData == null) {
        resetSourceApplication();
        return;
    }

    isOpenedByApplink = true;

    Bundle applinkReferrerData = applinkData.getBundle("referer_app_link");

    if (applinkReferrerData == null) {
        sourceApplication = null;
        return;
    }

    String applinkReferrerPackage = applinkReferrerData.getString("package");
    sourceApplication = applinkReferrerPackage;

    // Mark this intent has been used to avoid use this intent again and again.
    openIntent.putExtra(SOURCE_APPLICATION_HAS_BEEN_SET_BY_THIS_INTENT, true);

    return;
}
 

import android.app.Activity; //導入方法依賴的package包/類
private void initializeCallingPackage(Activity activity) {
    ComponentName componentName = activity.getCallingActivity();
    if (componentName != null) {
        this.callingPackage = componentName.getPackageName();
    }
}