android捕获全局异常，CrashHandler

迈不过友情╰ 2022-08-07 08:59 201阅读 0赞

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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</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。

[view plain]: http://blog.csdn.net/luck_apple/article/details/7768064#