安装：
1 |
String str = "/CanavaCancel.apk"; |
2 |
String fileName = Environment.getExternalStorageDirectory() + str; |
3 |
Intent intent = newIntent(Intent.ACTION_VIEW); |
4 |
intent.setDataAndType(Uri.fromFile(newFile(fileName)),"application/vnd.android.package-archive"); |
5 |
startActivity(intent); |
卸载：
1 |
Uri packageURI = Uri.parse("package:com.demo.CanavaCancel"); |
2 |
Intent uninstallIntent = newIntent(Intent.ACTION_DELETE, packageURI); |
3 |
startActivity(uninstallIntent); |
Environment拥有一些可以获取环境变量的方法
package:com.demo.CanavaCancel 这个形式是 package:程序完整的路径 (包名+程序名).
//下载apk程序代码
01 |
protected |
02 |
// TODO Auto-generated method stub |
03 |
finalString fileName ="updata.apk"; |
04 |
File tmpFile =newFile("/sdcard/update"); |
05 |
if(!tmpFile.exists()) { |
06 |
tmpFile.mkdir(); |
07 |
} |
08 |
finalFile file =newFile("/sdcard/update/"+ fileName); |
09 |
|
10 |
try{ |
11 |
URL url =newURL(httpUrl); |
12 |
try{ |
13 |
HttpURLConnection conn = (HttpURLConnection) url |
14 |
.openConnection(); |
15 |
InputStream is = conn.getInputStream(); |
16 |
FileOutputStream fos =newFileOutputStream(file); |
17 |
byte[] buf =newbyte[256]; |
18 |
conn.connect(); |
19 |
doublecount =0; |
20 |
if(conn.getResponseCode() >=400) { |
21 |
Toast.makeText(Main.this,"连接超时", |
22 |
.show(); |
23 |
}else{ |
24 |
while(count <=100) { |
25 |
if(is !=null) { |
26 |
intnumRead = is.read(buf); |
27 |
if(numRead <=0) { |
28 |
break; |
29 |
}else{ |
30 |
fos.write(buf,0, numRead); |
31 |
} |
32 |
|
33 |
}else{ |
34 |
break; |
35 |
} |
36 |
|
37 |
} |
38 |
} |
39 |
|
40 |
conn.disconnect(); |
41 |
fos.close(); |
42 |
is.close(); |
43 |
}catch(IOException e) { |
44 |
// TODO Auto-generated catch block |
45 |
|
46 |
e.printStackTrace(); |
47 |
} |
48 |
}catch(MalformedURLException e) { |
49 |
// TODO Auto-generated catch block |
50 |
|
51 |
e.printStackTrace(); |
52 |
} |
53 |
|
54 |
returnfile; |
55 |
} |
56 |
//打开APK程序代码 |
57 |
|
58 |
private openFile(File file) { |
59 |
// TODO Auto-generated method stub |
60 |
Log.e("OpenFile", file.getName()); |
61 |
Intent intent =newIntent(); |
62 |
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
63 |
intent.setAction(android.content.Intent.ACTION_VIEW); |
64 |
intent.setDataAndType(Uri.fromFile(file), |
65 |
"application/vnd.android.package-archive"); |
66 |
startActivity(intent); |
67 |
} |
//打开APK程序代码 |
57 |
|
58 |
private openFile(File file) { |
59 |
// TODO Auto-generated method stub |
60 |
Log.e("OpenFile", file.getName()); |
61 |
Intent intent =newIntent(); |
62 |
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
63 |
intent.setAction(android.content.Intent.ACTION_VIEW); |
64 |
intent.setDataAndType(Uri.fromFile(file), |
65 |
"application/vnd.android.package-archive"); |