AlexAndroid.net

Category: Diagnostic Tools

  • How to set Fiddler listening for the network calls of the applications

    1.  Go here and download Fiddler and then install it.
    2. Check your local IP of your PC here.
    3.  Menu => Tools => Options: Tab “Connections” settings should be as below:


    (more…)

  • OkHttpClient – Get real request/response headers log

    Request headers:

    I: .Sending request http://www.some_site.com/some_file.js Headers:
    Host: www.some_site.com
    Connection: Keep-Alive
    Accept-Encoding: gzip
    User-Agent: okhttp/3.8.1
    If-Modified-Since: Thu, 14 Sep 2017 11:35:41 GMT

    Response headers:

    I: . 200 – OK => Received networkResponse for http://www.some_site.com/some_file.js in 141.2ms
    (more…)

  • StrictMode – Detects things you might be doing by accident

    Useful diagnostic tool. It helps to find and fix performance issues, object leaks and other runtime issues.

    if (BuildConfig.DEBUG) {
 StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()
       .detectAll()
       .penaltyLog()
       .build());
 StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
       .detectAll()
       .penaltyLog()
       .penaltyDeathOnNetwork()
       .build());
}

    Example in logs:

    D: StrictMode policy violation; ~duration=19 ms: 
        android.os.StrictMode$StrictModeDiskReadViolation: 
                policy=543 violation=2
at android.os.StrictMode$AndroidBlockGuardPolicy.onReadFromDisk(StrictMode.java:1137)
at android.app.SharedPreferencesImpl.awaitLoadedLocked(SharedPreferencesImpl.java:202)
at android.app.SharedPreferencesImpl.getBoolean(SharedPreferencesImpl.java:259)
at .MyApplication.notificationToggleCheck(MyApplication.java:54)
at .MyApplication.onCreate(MyApplication.java:35)
...

    http://developer.android.com/reference/android/os/StrictMode.html