Android log file output

Source: Internet
Author: User
<span id="Label3"></p><p><p><span style="font-size:24px; color:#CC0000">Android log file output</span></p></p><p><p>Usage:<br></p></p><p><p>try {<br><br>} catch (Exception E) {<br><span style="font-size:18px; color:#FF0000">logutil.logexception (e);</span><br>}<br></p></p><p><p>Package com.hexun.util;</p></p><br>Import;<br>Import;<br>Import;<br>Import;<br>Import;<br>Import;<br>Import;<br><br>Import android.os.Environment;<br>Import android.util.Log;<br><br>/**<br>* Log Printing<br>*/<br>public class Logutil {<br><br><span style="color:#CC0000"><span style="color:#CC0000">private static final String file_name = "/logs.txt";<br>private static Boolean Mylog_switch = true; Log file Total switch<br></span></span><br>public static void I (string tag, string Str) {<br>LOG.I (tag, str.tostring ());<br>}<br><br>public static void Logexception (Exception E) {<br>If (mylog_switch) {<br>StringWriter SW = new StringWriter ();<br>PrintWriter pw = new PrintWriter (sw);<br>E.printstacktrace (pw);<br>String str = sw.tostring ();<br>WriteException (str);<br>} else {<br>E.printstacktrace ();<br>}<br>}<br><br>private static void WriteException (String Content) {<br>try {<br>If (environment.getexternalstoragestate (). equals (<br>ENVIRONMENT.MEDIA_MOUNTED)) {<br>Get the SD card directory<br>File Sdcarddir = environment.getexternalstoragedirectory ();<br>File TargetFile = new file (sdcarddir.getcanonicalpath ()<br>+ file_name);<br>Create a Randomaccessfile object with the specified file<br>Randomaccessfile RAF = new Randomaccessfile (targetfile, "rw");<br>Move the file record pointer to the last<br> (targetfile.length ());<br>Output file contents<br>Raf.write (content.getbytes ());<br>Raf.close ();<br>}<br>} catch (Exception E) {<br>E.printstacktrace ();<br>}<br>}<br><br>private static String readexception () {<br>try {<br>If (environment.getexternalstoragestate (). equals (<br>ENVIRONMENT.MEDIA_MOUNTED)) {<br>Get the storage directory for the SD card<br>File Sdcarddir = environment.getexternalstoragedirectory ();<br>Gets the input stream corresponding to the specified file<br>FileInputStream fis = new FileInputStream (<br>Sdcarddir.getcanonicalpath () + file_name);<br>Wraps the specified input stream into Bufferreader<br>BufferedReader br = new BufferedReader (new InputStreamReader (<br>fis));<br>StringBuilder sb = new StringBuilder ("");<br>String line = null;<br>Looping through the contents of a file<br>While (line = Br.readline ()) = null) {<br>Sb.append (line);<br>}<br>Br.close ();<br>return sb.tostring ();<br>}<br>} catch (Exception E) {<br>E.printstacktrace ();<br>}<br>Return null;<br>}<br><br>}<p style="font-size:12px;"><p style="font-size:12px;">Copyright Notice: This article for Bo Master original article, without Bo Master permission not Reproduced.</p></p> <p><p>Android log file output</p></p></span>
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