Android: 通过Runtime.getRuntime().exec调用底层Linux下的程序或脚本

时间：2016-06-07 14:55:39 阅读：252 评论：0 收藏：0 [点我收藏+]

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Android Runtime使得直接调用底层Linux下的可执行程序或脚本成为可能

比如Linux下写个测试工具，直接编译后apk中通过Runtime来调用

或者写个脚本，apk中直接调用，省去中间层或者JNI

这个至少效率应该比较高吧

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代码:

[java] view plain copy

 1 public class test extends Activity {  
 2     TextView text;  
 3       
 4     /** Called when the activity is first created. */  
 5     @Override  
 6     public void onCreate(Bundle savedInstanceState) {  
 7         super.onCreate(savedInstanceState);  
 8         setContentView(R.layout.main);  
 9           
10         text = (TextView) findViewById(R.id.text);  
11           
12         Button btn_ls = (Button) findViewById(R.id.btn_ls);  
13         btn_ls.setOnClickListener(new OnClickListener() {  
14             public void onClick(View v) {                 
15                 do_exec("ls /mnt/sdcard");  
16             }             
17         });  
18         Button btn_cat = (Button) findViewById(R.id.btn_cat);  
19         btn_cat.setOnClickListener(new OnClickListener() {  
20             public void onClick(View v) {                 
21                 do_exec("cat /proc/version");  
22             }             
23         });          
24         Button btn_rm = (Button) findViewById(R.id.btn_rm);  
25         btn_rm.setOnClickListener(new OnClickListener() {  
26             public void onClick(View v) {                 
27                 do_exec("rm /mnt/sdcard/1.jpg");  
28             }             
29         });      
30         Button btn_sh = (Button) findViewById(R.id.btn_sh);  
31         btn_sh.setOnClickListener(new OnClickListener() {  
32             public void onClick(View v) {                 
33                 do_exec("/system/bin/sh /mnt/sdcard/test.sh 123");  
34             }             
35         });           
36     }  
37       
38     String do_exec(String cmd) {  
39         String s = "/n";  
40         try {  
41             Process p = Runtime.getRuntime().exec(cmd);  
42             BufferedReader in = new BufferedReader(  
43                                 new InputStreamReader(p.getInputStream()));  
44             String line = null;  
45             while ((line = in.readLine()) != null) {  
46                 s += line + "/n";                 
47             }  
48         } catch (IOException e) {  
49             // TODO Auto-generated catch block  
50             e.printStackTrace();  
51         }  
52         text.setText(s);  
53         return cmd;       
54     }  
55 }  
56