Android phone Defender--Signature File Description & Package Name Description

In the "Android Phone defender-Package build APK maintenance to the server" article, the implementation of a new version of the APK to the server, when the client apk opened, found that there is a new version, prompting updates. Also implemented using the Xutils tool to download apk from the server side

This article address: http://www.cnblogs.com/wuyudong/p/5903484.html, reprint please indicate source address.

This article implements the download of the native APK installation, the process is very simple, refer to "Android apk installation"

The code is as follows:

    /**      * Install the corresponding apk     @param     file installation files      */    protected void installapk (file file) {        //  System Application interface, source code, install APK entry        new  Intent ();        Intent.setaction ("Android.intent.action.VIEW");        Intent.addcategory ("Android.intent.category.DEFAULT");        " Application/vnd.android.package-archive ");        StartActivity (intent);    }

After you run the project

Click Install

Installation fails, note here

Install APK considerations

Upgrade
1, note: The original application is covered out, the package name is consistent

2. Consistent signature???

Apps running from Eclipse to your phone, using apps in the Bin directory, using the Debug.keystore signature app

Mobile defender version One, right button to run to the phone, so use the signature is Debug.keystore

Mobile defender version Two, packaged separately, generates the corresponding signature file Wuyudongkeystore

Generate an Wuyudongkeystore as a signature file apk

Following the above, the problem can be done

Ps:

Signature is the same, package name is different: build two mobile defender apk, package name is the unique symbol of the app

Different signatures, package name consistent: Overwrite installation failed

1.0 Generating KeyStore
2.0 ... Use the existing KeyStore and password to

keystore+ password properly saved

Android phone Defender--Signature File Description & Package Name Description