Question

我正在寻找有关我的应用程序打开位置的统计信息。我开始看这个例子：

https://github.com/googlecodelabs/deeplink-referrer/blob/master/end/app/src/main/java/com/google/samples/search/recipe_app/client/AnalyticsApplication.java

利用Activity中的方法getReferrer()。现在我在调试我的应用程序并从Google搜索应用程序打开结果时看到的是，此方法始终为我提供结果的http链接，但它从未向我提供用户使用的应用程序是Google搜索的信息。我知道这些信息会传递给应用程序，因为如果我检查Activity，我可以看到mReferrer属性包含调用者应用程序的包名，正是我所寻找的！但是，无法访问所述属性，并且唯一使用它的地方是方法getReferrer()。现在看一下这个方法，这就是Activity里面的内容：

 /**
 * Return information about who launched this activity.  If the launching Intent
 * contains an {@link android.content.Intent#EXTRA_REFERRER Intent.EXTRA_REFERRER},
 * that will be returned as-is; otherwise, if known, an
 * {@link Intent#URI_ANDROID_APP_SCHEME android-app:} referrer URI containing the
 * package name that started the Intent will be returned.  This may return null if no
 * referrer can be identified -- it is neither explicitly specified, nor is it known which
 * application package was involved.
 *
 * <p>If called while inside the handling of {@link #onNewIntent}, this function will
 * return the referrer that submitted that new intent to the activity.  Otherwise, it
 * always returns the referrer of the original Intent.</p>
 *
 * <p>Note that this is <em>not</em> a security feature -- you can not trust the
 * referrer information, applications can spoof it.</p>
 */
@Nullable
public Uri getReferrer() {
    Intent intent = getIntent();
    try {
        Uri referrer = intent.getParcelableExtra(Intent.EXTRA_REFERRER);
        if (referrer != null) {
            return referrer;
        }
        String referrerName = intent.getStringExtra(Intent.EXTRA_REFERRER_NAME);
        if (referrerName != null) {
            return Uri.parse(referrerName);
        }
    } catch (BadParcelableException e) {
        Log.w(TAG, "Cannot read referrer from intent;"
                + " intent extras contain unknown custom Parcelable objects");
    }
    if (mReferrer != null) {
        return new Uri.Builder().scheme("android-app").authority(mReferrer).build();
    }
    return null;
}

如您所见，Intent.EXTRA_REFERRER的优先级始终存在，因此永远不会使用mReferrer的最后一部分。

有没有办法可以检索来电者包名？

Answer 1

嗯，刚想办法自己做。在这里分享，以防任何人进行相同的操作。实质上，看看getReferrer()如何工作，这将得到包名：

        // Backup referrer info and remove it temporarily.
        Uri extraReferrerBackup = getIntent().getParcelableExtra(Intent.EXTRA_REFERRER);
        String extraReferrerNameBackup = getIntent().getStringExtra(Intent.EXTRA_REFERRER_NAME);
        getIntent().removeExtra(Intent.EXTRA_REFERRER);
        getIntent().removeExtra(Intent.EXTRA_REFERRER_NAME);

        // Get the app referrer.
        Uri referrer = getReferrer();

        // Restore previous http referrer info.
        getIntent().putExtra(Intent.EXTRA_REFERRER, extraReferrerBackup);
        getIntent().putExtra(Intent.EXTRA_REFERRER_NAME, extraReferrerNameBackup);

在深层链接

1 个答案: