android捕获全局异常，CrashHandler



1. package com.numob.david.util;  
2.   
3. import java.io.File;  
4. import java.io.FileWriter;  
5. import java.io.IOException;  
6. import java.lang.Thread.UncaughtExceptionHandler;  
7. import java.util.Date;  
8.   
9. import android.os.Environment;  
10. import android.util.Log;  
11.   
12. /** 
13.  * 全局处理异常. 
14.  * 
15.  */  
16. public class CrashHandler implements UncaughtExceptionHandler {  
17.     /** CrashHandler实例 */  
18.   
19.     private static CrashHandler instance;  
20.   
21.     /** 获取CrashHandler实例 ,单例模式*/  
22.   
23.     public static CrashHandler getInstance() {  
24.         if (instance == null) {  
25.             instance = new CrashHandler();  
26.         }  
27.         return instance;  
28.     }  
29.   
30.     @Override  
31.     public void uncaughtException(Thread arg0, Throwable arg1) {  
32. //        ScreenManager.getScreenManager().popActivity(Pay.activity);  
33. //         arg0.stop();  
34. //         arg0.destroy();  
35.           
36.         String logdir ;  
37.         if(Environment.getExternalStorageDirectory()!=null){  
38.             logdir = Environment.getExternalStorageDirectory().getAbsolutePath()  
39.                     + File.separator + "snda"+File.separator+"log" ;  
40.               
41.               
42.             File file = new File(logdir);  
43.             boolean mkSuccess;  
44.             if (!file.isDirectory()) {  
45.                 mkSuccess = file.mkdirs();  
46.                 if (!mkSuccess) {  
47.                     mkSuccess = file.mkdirs();  
48.                 }  
49.             }  
50.             try {  
51.                 FileWriter fw = new FileWriter(logdir+File.separator+"error.log",true);  
52.                 fw.write(new Date()+"\n");  
53.                 StackTraceElement[] stackTrace = arg1.getStackTrace();  
54.                 fw.write(arg1.getMessage() + "\n");  
55.                 for (int i = 0; i < stackTrace.length; i++) {  
56.                     fw.write("file:" + stackTrace[i].getFileName() + " class:" + stackTrace[i].getClassName()  
57.                             + " method:" + stackTrace[i].getMethodName() + " line:" + stackTrace[i].getLineNumber()  
58.                             + "\n");  
59.                 }  
60.                 fw.write("\n");  
61.                 fw.close();  
62.             } catch (IOException e) {  
63.                 Log.e("crash handler", "load file failed...", e.getCause());  
64.             }  
65.         }  
66.         arg1.printStackTrace();  
67.         android.os.Process.killProcess(android.os.Process.myPid());   
68.     }  
69.   
70. }  

71. package com.numob.david.util;import java.io.File;import java.io.FileWriter;import java.io.IOException;import java.lang.Thread.UncaughtExceptionHandler;import java.util.Date;import android.os.Environment;import android.util.Log;/** * 全局处理异常. * */public class CrashHandler implements UncaughtExceptionHandler {    /** CrashHandler实例 */    private static CrashHandler instance;    /** 获取CrashHandler实例 ,单例模式*/    public static CrashHandler getInstance() {        if (instance == null) {            instance = new CrashHandler();        }        return instance;    }    @Override    public void uncaughtException(Thread arg0, Throwable arg1) {//        ScreenManager.getScreenManager().popActivity(Pay.activity);//         arg0.stop();//         arg0.destroy();        String logdir ;    if(Environment.getExternalStorageDirectory()!=null){    logdir = Environment.getExternalStorageDirectory().getAbsolutePath()+ File.separator + "snda"+File.separator+"log" ;            File file = new File(logdir);boolean mkSuccess;if (!file.isDirectory()) {mkSuccess = file.mkdirs();if (!mkSuccess) {mkSuccess = file.mkdirs();}}try {FileWriter fw = new FileWriter(logdir+File.separator+"error.log",true);fw.write(new Date()+"\n");                StackTraceElement[] stackTrace = arg1.getStackTrace();                fw.write(arg1.getMessage() + "\n");                for (int i = 0; i < stackTrace.length; i++) {                    fw.write("file:" + stackTrace[i].getFileName() + " class:" + stackTrace[i].getClassName()                            + " method:" + stackTrace[i].getMethodName() + " line:" + stackTrace[i].getLineNumber()                            + "\n");                }fw.write("\n");fw.close();} catch (IOException e) {Log.e("crash handler", "load file failed...", e.getCause());}    }    arg1.printStackTrace();        android.os.Process.killProcess(android.os.Process.myPid());     }}

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1.   

</pre><p></p><p><span lang="EN-US" style="text-align: justify; font-family: Calibri,sans-serif; font-size: 14px;">Activity或是Application</span><span style="text-align: justify; font-family: 宋体; font-size: 14px;">中加入这样的代码</span><span lang="EN-US" style="text-align: justify; font-family: Calibri,sans-serif; font-size: 14px;"> ：</span></p><p><span lang="EN-US" style="text-align: justify; font-family: Calibri,sans-serif; font-size: 14px;"></span><div class="dp-highlighter bg_java"><div class="bar"><div class="tools"><strong>[java]</strong> <a target=_blank title="view plain" class="ViewSource" href="http://blog.csdn.net/luck_apple/article/details/7768064#">view plain</a><a target=_blank title="copy" class="CopyToClipboard" href="http://blog.csdn.net/luck_apple/article/details/7768064#">copy</a><a target=_blank title="print" class="PrintSource" href="http://blog.csdn.net/luck_apple/article/details/7768064#">print</a><a target=_blank title="?" class="About" href="http://blog.csdn.net/luck_apple/article/details/7768064#">?</a></div></div><ol class="dp-j"><li class="alt"><span><span>CrashHandler crashHandler = CrashHandler.getInstance();  </span></span></li><li><span>crashHandler.init(getApplicationContext());  </span></li></ol></div><pre class="java" style="display: none;" name="code">CrashHandler crashHandler = CrashHandler.getInstance();crashHandler.init(getApplicationContext());

今天只做简单介绍了。