将文件资产打包到apk中？

Question

I have some files that need to use by my application when it is on the device. Right now, I can only done this by copy those files and paste it into device directly by using computer manually.

So is there any way to pack or copy these files into apk and when installing on the device, and The program will paste them to specify folder in the device automatically

The files that I want to pack are the model for sphinx speech recognition

Thank.

Answer 1

You can place the files in the /assets directory of your project, which will build it directly into the apk, and then access the file to copy it or whatever you need using the getAssets() method on a Context object at runtime:

InputStream input = context.getAssets().open("your_file_name");
String outPath = "/some/path/your_file_name";
OutputStream output = new FileOutputStream(outPath);

// transfer bytes from the inputfile to the outputfile
byte[] buffer = new byte[1024];
int length;
while ((length = myInput.read(buffer)) > 0) {
    output.write(buffer, 0, length);
}

// Close the streams
output.flush();
output.close();
input.close();