Android hotfix: android hotfix

Android hotfix: android hotfix

1.1 Basic Introduction
　
Let's go to github and learn about its https://github.com/alibaba/AndFix.

Here is a concept. The AndFix. apatch patch is used to fix the problem. Let's see how it is implemented.

　　
1.2 generate an apatch package
　　
. At this time, we can use the tools provided by Alibaba github to generate a xxxx. apatch package for fixing bugs.

Command:Apkpatch. bat-f <new>-t <old>-o <output>-k <keystore>-p <>-A <alias>-e <>

-F: New apk version without bugs
-T: Old apk with bugs
-O: the folder where the patch file is generated
-K: Signature packaging key
-P: Signature and packaging key and password
-A: signature key alias
-E: sign the alias password (which is generally the same as the key password)

My website is like this:

Apkpatch. bat-f new.apk-t old.apk-o out-k joke. jks-p 240336124-a connotation section-e 240336124

Patch generated:

 

 

1.3 repair apatch package

How can I get the apatch package? We must request the API to download our repaired apatch package. Of course, it may be great if it is not. After downloading it, we can call the method to fix it. We can temporarily test it locally. These codes must be written before:

Public class BaseApplication extends Application {// Patch Management class public static PatchManager mPatchManager; @ Override public void onCreate () {super. onCreate (); // capture the crash information ExceptionCrashHandler. getInstance (). init (this); // Ali hotfix try {mPatchManager = new PatchManager (this); // initialize the patch version String pkName = this. getPackageName (); String versionName = getPackageManager (). getPackageInfo (pkName, 0 ). versionName; // initialize the version name mPatchManager. init (versionName); // load the previous patch mPatchManager. loadPatch ();} catch (PackageManager. nameNotFoundException e) {e. printStackTrace ();}}}

MainActivity on the home page

1 public class MainActivity extends BaseSkinActivity {2 3 @ Override 4 protected void initData () {5 // obtain the last crash Message 6 File crashFile = ExceptionCrashHandler. getInstance (). getCrashFile (); 7 // upload the file to the server ....... 8} 9 10 @ Override11 protected void initView () {12 13} 14 15 @ Override16 protected void setContentView () {17 setContentView (R. layout. activity_main); 18} 19 20 @ Override21 protected void initTitle () {22 23} 24 25 @ Onclick (R. id. test) 26 public void test (View view) {27 // an exception will be reported 28 Toast. makeText (this, Utils. test (), Toast. LENGTH_LONG ). show (); 29} 30 31 @ Onclick (R. id. ali_fix) 32 public void aliHotFix (View view) {33 try {34 // The test is currently in local 35 String patchFileString = Environment. getExternalStorageDirectory () + "/fix. apatch "; 36 Log. e ("TAG", patchFileString); 37 // fix apatch. It takes effect immediately without restarting. mPatchManager. addPatch (patchFileString); 39 Toast. makeText (this, "Bug fixed successfully", Toast. LENGTH_LONG ). show (); 40} catch (Exception e) {41 e. printStackTrace (); 42 Toast. makeText (this, "Bug fixing failed", Toast. LENGTH_LONG ). show (); 43} 44} 45}

The running effect is at the top. If you click test directly, an exception will be thrown back. After you click Alibaba open source Hotfix, click test again and you will find that the test will not crash. You may not understand the following content. Please be prepared.