I need to download by program an .apk file then launching its activity. The code I am using is the following
private String downloadFile(String sourceURL, String destinationPath)
{
try {
URL url = new URL(sourceURL);
URLConnection connection = url.openConnection();
connection.connect();
// download the file
InputStream input = new BufferedInputStream(url.openStream());
OutputStream output = new FileOutputStream(destinationPath);
byte data[] = new byte[1024];
int count;
while ((count = input.read(data)) > 0) {
output.write(data, 0, count);
}
output.flush();
output.close();
input.close();
// EDITED here: Make the file rw, otherwise the apk file will not be installed Runtime.getRuntime().exec("chmod 666 " + destinationPath);
message = "OK";
}
catch (MalformedURLException e) {
message = "Malformed URL error: " + e.getMessage();
}
catch (ProtocolException e) {
message = "Protocol exception error: " + e.getMessage();
}
catch (FileNotFoundException e) {
message = "File not found error: " + e.getMessage();
}
catch (IOException e) {
e.printStackTrace();
message = "Failed to download the file : " + e.getMessage();
}
return message;
}
I mention that I call the method first for a text file, then for an apk file. Each time I process the files locally, therefore, somehow I know what's going wrong or not. In this way I know that the text file is downloaded correctly. But the .apk file is corrupted. Because I develop locally, with access to DDMS and localhost (the IP: 10.0.2.2) I can firmly state that the culprit is the code above. When I artificially replace the 'downloaded' file, through DDMS, with the original .apk file, all processing that follows is Ok. In addition, I have byes difference when I compare the original and the downloaded .apk files. What am I doing wrong? Thanks PS: Searching, I realized that, while is a popular issue, there is no consistent answer to it. In my case I identified it as purely a download method issue.
Please see above the answer under the EDITED line. Implemented, works fine, that may help others