|
1 | 1 | 开发中异常的处理 |
2 | 2 | === |
3 | 3 |
|
| 4 | + |
| 5 | + |
4 | 6 | 1. 实现未捕捉异常处理器 |
5 | | - ```java |
6 | | - public class MyExceptionHandler implements UncaughtExceptionHandler { |
7 | | - private static final String TAG = "MyExceptionHandler"; |
8 | | - @Override |
9 | | - public void uncaughtException(Thread arg0, Throwable arg1) { |
10 | | - Logger.i(TAG, "发生了异常,但是被哥捕获了..."); |
11 | | - try { |
12 | | - Field[] fields = Build.class.getDeclaredFields();//可以通过Build的属性来获取到手机的硬件信息,由于不同手机的硬件信息部一定有,所以要用反射得到 |
13 | | - StringBuffer sb = new StringBuffer(); |
14 | | - for(Field field: fields){ |
15 | | - String info = field.getName()+ ":"+field.get(null)+"\n"; |
16 | | - sb.append(info); |
17 | | - } |
18 | | - StringWriter sw = new StringWriter(); |
19 | | - PrintWriter pw = new PrintWriter(sw); |
20 | | - arg1.printStackTrace(pw);//通过这个来得到异常信息 |
21 | | - String errorlog = sw.toString(); |
22 | | - |
23 | | - File file = new File(Environment.getExternalStorageDirectory(), |
24 | | - "error.log"); |
25 | | - FileOutputStream fos = new FileOutputStream(file); |
26 | | - sb.append(errorlog); |
27 | | - fos.write(sb.toString().getBytes()); |
28 | | - fos.close(); |
29 | | - } catch (Exception e) { |
30 | | - e.printStackTrace(); |
31 | | - } |
32 | | - android.os.Process.killProcess(android.os.Process.myPid());//这个是只能杀死自己不能杀死别人,这时候系统发现程序在自己的范围之内死了, |
33 | | - 系统就会重启程序到出现错误之前的那个Activity。 |
| 7 | + |
| 8 | +```java |
| 9 | +public class MyExceptionHandler implements UncaughtExceptionHandler { |
| 10 | + private static final String TAG = "MyExceptionHandler"; |
| 11 | + @Override |
| 12 | + public void uncaughtException(Thread arg0, Throwable arg1) { |
| 13 | + Logger.i(TAG, "发生了异常,但是被哥捕获了..."); |
| 14 | + try { |
| 15 | + Field[] fields = Build.class.getDeclaredFields();//可以通过Build的属性来获取到手机的硬件信息,由于不同手机的硬件信息部一定有,所以要用反射得到 |
| 16 | + StringBuffer sb = new StringBuffer(); |
| 17 | + for(Field field: fields){ |
| 18 | + String info = field.getName()+ ":"+field.get(null)+"\n"; |
| 19 | + sb.append(info); |
| 20 | + } |
| 21 | + StringWriter sw = new StringWriter(); |
| 22 | + PrintWriter pw = new PrintWriter(sw); |
| 23 | + arg1.printStackTrace(pw);//通过这个来得到异常信息 |
| 24 | + String errorlog = sw.toString(); |
| 25 | + |
| 26 | + File file = new File(Environment.getExternalStorageDirectory(), |
| 27 | + "error.log"); |
| 28 | + FileOutputStream fos = new FileOutputStream(file); |
| 29 | + sb.append(errorlog); |
| 30 | + fos.write(sb.toString().getBytes()); |
| 31 | + fos.close(); |
| 32 | + } catch (Exception e) { |
| 33 | + e.printStackTrace(); |
34 | 34 | } |
| 35 | + android.os.Process.killProcess(android.os.Process.myPid());//这个是只能杀死自己不能杀死别人,这时候系统发现程序在自己的范围之内死了, |
| 36 | + 系统就会重启程序到出现错误之前的那个Activity。 |
35 | 37 | } |
36 | | - ``` |
| 38 | +} |
| 39 | +``` |
37 | 40 |
|
38 | 41 | 2. 让这个处理器生效 |
39 | | - ```java |
40 | | - /** |
41 | | - * 代表的是当前应用程序的进程. |
42 | | - */ |
43 | | - public class MobliesafeApplication extends Application { |
44 | | - public BlackNumberInfo info; |
45 | | - |
46 | | - @Override |
47 | | - public void onCreate() { |
48 | | - super.onCreate(); |
49 | | - Thread.currentThread().setUncaughtExceptionHandler(new MyExceptionHandler());//这样就能够让异常的处理器设置到我们的程序中 |
50 | | - } |
| 42 | + |
| 43 | +```java |
| 44 | +/** |
| 45 | + * 代表的是当前应用程序的进程. |
| 46 | + */ |
| 47 | +public class MobliesafeApplication extends Application { |
| 48 | + public BlackNumberInfo info; |
| 49 | + |
| 50 | + @Override |
| 51 | + public void onCreate() { |
| 52 | + super.onCreate(); |
| 53 | + Thread.currentThread().setUncaughtExceptionHandler(new MyExceptionHandler());//这样就能够让异常的处理器设置到我们的程序中 |
51 | 54 | } |
52 | | - ``` |
| 55 | +} |
| 56 | +``` |
53 | 57 |
|
54 | 58 | --- |
55 | 59 |
|
|
0 commit comments