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Android application Crash automatically captures logs _ automatically saves Crash logs to the local device, androidcrash
After the application crash occurs, you need to view the log to
[Android Notes] crash log collection and Android crash logs
After the application was released, some people reported that a crash occurred, but I was unable to locate the problem because I couldn't
extends Application{@Overridepublic void onCreate(){super.onCreate();CrashHandler crashHandler = CrashHandler.getInstance();crashHandler.init(getApplicationContext());}}
Required permissions:
How can I view the logs generated when an error is reported by the android program?
If the program is forced to close, the system will keep the error log, but you need to root to see it. You can also run the d
No meaningful files were left during project packaging and obfuscation, resulting in crash logs reported by the operations team (the most typical is Google Play ),
It is difficult to locate the problem because many of the logs are obfuscated classes, methods, and variables.
Recently discovered:
When obfuscation, you can add the following names to generate a in
OverviewSometimes the user device needs to be identified, so you want to get a stable and reliable and unique identification code. Although such device identifiers are available in the Android system, stability and uniqueness are not ideal due to limitations such as the Android
Whether it is PC-side software or Android software, sometimes when sold without outright buyout or purchase of copyright, then you need a set of selling, and to ensure that the software is forbidden to copy.The software on the PC side can be added to the code to detect the hard drive serial number. In this case, it is not possible to copy to another computer because the hard drive serial number is identified incorrectly. Then in
Recently, there is a need to compare the time of a single activity load of two versions before and afterIn the Android log we can see similar Info/activitymanager (2486): Displayed activity com.teleca/. contextmenuactivity:240 MS (total 41289 ms) log, which is the load time of the activityFirst get the log through adb logcat > xx.txt, and then analyze the log with the following code:#-*-coding:utf-8-*-#anal
physical screen relative to the ground-ui the angle of rotation relative to the physical screen
The way Android apps get the screen rotation angle is: int rotation = Activity.getwindowmanager (). Getdefaultdisplay (). Getrotation (); int degree= * rotation; Float rad = (float) math.pi/2 * rotation;DemoAccording to the above algorithm, I wrote a "Tumbler" of the demo, when the
Learn how to get the unique identifier of an android device (21)
Because a stable and reliable unique device identification code is required for the project, some information on the internet is searched. We will introduce several methods today.1. DEVICE_ID
If we do need the identifier of a real
Below I from the perspective of Android development, simply write how to get mobile device information and mobile phone numberPreparation conditions: An Android phone, mobile SIM card to ensure plug-in phone, Eclipse ADT and ANDROID-SDK development environmentFirst step: Cre
Recently do an Android application, with Bluetooth signal control an instrument, through a Bluetooth to the serial port device, send Bluetooth signal, and then converted to serial command sent to the instrument. The Bluetooth device is as follows:How do I get this Bluetooth device
the configuration class is used to describe the information on a mobile device. Sometimes our app needs to get the phone's system information and adjust our app based on the phone's information , so we need to use the Configuration class. (1) get the Configuration ObjectCall the Activity 's method to get the system's
Android developers need to know the unique device ID on their phone in certain situations. For example, you can track the installation of an application and generate a unique ID for the device that is used to copy protected DRM. The sample code snippet as a reference is provided at the end of this document.
Range
This article provides an introduction to how to re
Theme: How do I get the log from device?Detail:get the log from device, and write to the local file.Google Source jar: Use the methods in Ddmlib.jar mostly: import Com.android.ddmlib.AndroidDebugBridge;Import Com.android.ddmlib.AndroidDebugBridge.IDeviceChangeListener;Import Com.android.ddmlib.IDevice; The concrete process:First step: connect the device
This article describes how to get the status of your Android device WiFi connection!Add access permissions (in the Androidmanifest.xml file)Java code (mainactivity.java file)Package Com.example.androidtest;import Android.net.connectivitymanager;import android.net.NetworkInfo.State; Import Android.os.bundle;import android.app.activity;import Android.content.contex
Before Android 4.0, you can get the width of the screen in the following way:Displaymetrics dm = new Displaymetrics ();Getwindowmanager (). Getdefaultdisplay (). Getmetrics (DM);int Mscreenw = dm.widthpixels; Get widthint mscreenh = dm.heightpixels; Get highBy the above method before 4.0, the total width and total heig
If Bluetooth is paired and connected manually, get the connected device:1. Check the connection status:Java code
int A2DP = Bluetoothadapter.getprofileconnectionstate (BLUETOOTHPROFILE.A2DP);
int headset = bluetoothadapter.getprofileconnectionstate (Bluetoothprofile.headset);
int health = bluetoothadapter.getprofileconnectionstate (bluetoothprofile.health);
2, depending on whether th
1. The information of connected equipment is stored in/data/misc/dhcp/dnsmasq.leases2. Its format is:/system ID, no value required/client MAC address/client IP address/client device name/weighted after MAC address, no value required2, refer to the Wifiservie.java Getclientip () method, you can customize this method to obtain the device name, as follows:Reprint Please specify source: Zhou Mushi's csdn blog H
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