Get the Google Advertising ID as a unique identifier

一、背景

在Android程序中,有时候我们APPA unique identification code is required,to distinguish users.在Androidprovided in the systemAndroidId,但AndroidId有时候会为null,同时root手机用户,androidid可以改变.所以AndroidIdNot as a unique identifier.

对于Google推荐使用Google Advertising ID,通过Google Service可以获取Google Advertising ID（如果没有Google ServiceI can't go backGoogle Advertising ID）.

二、代码实现

/** * This method is time consuming,Cannot be called on the main thread */
public static String getGoogleAdId(Context context) throws Exception {
    
    if (Looper.getMainLooper() == Looper.myLooper()) {
    
        return "Cannot call in the main thread, You must call in the other thread";
    }
    AdvertisingIdClient.Info idInfo = null;
    try {
    
        idInfo = AdvertisingIdClient.getAdvertisingIdInfo(ctx);
    } catch (IOException e) {
    
        e.printStackTrace();
    } catch (GooglePlayServicesNotAvailableException e) {
    
        e.printStackTrace();
    } catch (GooglePlayServicesRepairableException e) {
    
        e.printStackTrace();
    }
    String adid = null;
    try {
    
        if (idInfo != null) {
    
            adid = idInfo.getId();
        }
    } catch (NullPointerException e) {
    
        e.printStackTrace();
    }
    return adid;
}