android-logcat

问题 I would like to display Log.i results in my application. Is it possible? If so, how can I do it? 回答1: Here's a blogpost that does exactly what you need it to do. It has a complete code example on how to display the contents of the Logcat log. Here's the code: import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; class ReadLogDemo extends Activity { @Override public

问题 My app is a combination of Android native, html5. Till last week I'm able to see the log messages from native code and javascript code running inside th WebView. But suddenly Logcat is not showing the console messages from javascript, though it is showing Log messages from my native code. Any ideas? Thanks in advance. Venkat 回答1: You can try adding a console message handler to your WebView by creating your custom WebChromeClient: class MyWebChromeClient extends WebChromeClient { @Override

问题 I am a newbie of android world. I have a problem of the coding. It was just a tiny error buy i dont know it doesnt work even i change others method but the error still the same error. Here the error occur at logcat: java.lang.NullPointerException: Attempt to invoke virtual method 'android.database.Cursor com.example.zellon.surveyapps.DatabaseHelper.getAData()' on a null object reference I just want to select the data in the database to get an id but cant cuz of the error above. I will give a

问题 I have a log cat which is outputted to a text file but can't find anything on what each part means. For example, I have the following: W/Trace ( 857): Unexpected value from nativeGetEnabledTags: 0 E/ActivityThread( 565): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d35408 that was originally bound here E/ActivityThread( 565): android.app.ServiceConnectionLeaked: Service com.android.exchange

问题 im following a tutorial and i have encounter a couple of problem doing this tutorial from enter link description here and now this problem what seem to be the problem. i was able to generate the sha1 now and i have imported the google play service lib but now i have encountered this problem how did i come up with this and how do i fix this UPDATE i have this on my SDK UPDATE support folder looks like this 回答1: The jar mismatch is due to different version of the support library. You can copy

问题 I'm testing my app in a physical device On debug run Console $ adb push C:\Users\arjun\AndroidStudioProjects\Scol\app\build\outputs\apk\app-debug.apk /data/local/tmp/com.example.arjun.scol $ adb shell pm install -r "/data/local/tmp/com.example.arjun.scol" pkg: /data/local/tmp/com.example.arjun.scol Success $ adb shell am start -n "com.example.arjun.scol/com.example.arjun.scol.login.Login" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER -D Waiting for application to come

问题 I have upgraded my Nexus 7 with Android 5.0 Lollipop, Before that my application going well with SQLite Database but now Whenever I execute any type of query, It gives me log cat error like: 12-09 12:37:04.942: E/SQLiteLog(13041): (284) automatic index on area(server_id) 12-09 12:37:04.942: E/SQLiteLog(13041): (284) automatic index on account(area_id) 12-09 12:37:04.942: E/SQLiteLog(13041): (284) automatic index on staff_visit(account_id) 12-09 12:37:04.942: E/SQLiteLog(13041): (284)

问题 I've added debug strings (using Log.d()) and want to see them in context from the contents of logCat. The "save" icon for LogCat has a "Save selected items" hint, but there's got to be a quick way to just save the entire contents, or select the entire contents, but I don't see how to do it. 回答1: You are not getting the answer you are looking for, are you. Two ways to do what you want: Right-click in the logcat messages window, choose select all. Then your save will be all logcat messages in

问题 I am developing the application in HTML which is calling the console.log() from Javascript to provide me logs during the development about what happens in the web page code. Unfortunately when I use the adb logcat command to check logs I can see output from all other applications, but not the output from my JavaScript code. I can see even the log from web browser that the page is loaded, but not console.log() output from my JavaScript code executed in the web browser. According to information

问题 I believe there have been changes to the ways apps can read logs in android post 4.2. But I wanted to know if I can read all the logs including system logs from logcat from within an app for current versions of android? If yes does it need some permission or not? 回答1: Unless you rooted you cannot do this since Jelly Bean. See this Android bug report and this related discussion. Quote: The change is that third party applications can no longer get the read logs permission, however every app can