Install .zip In Clockwork From App?

So in my app Im trying to make it flash a .zip in clockwork recovery using this Runtime run = Runtime.getRuntime(); Process p = null;

Solution 1:

out.writeBytes("echo 'install_zip(\""+ SDCARD:" +clickedFile.toString()+"\");'"+" > /cache/recovery/extendedcommand\n");

adb commands would look like:

adb shell
echo'install_zip("/sdcard/update.zip");' > /cache/recovery/extendedcommand

Solution 2:

I had the same issue but I was using a ListView combined with an ArrayAdapter to return the full path of the file. When I tried passing the path as 'SDCARD:' followed by the path to the file, it wasn't able to find the file as the method seems to be no longer supported by newer versions of CWM Recovery. I found an easy workaround though:

publicbooleaninstallPackage(String pos)throws InterruptedException {
    finalStringlocation="/emmc/" + pos.substring(11);
    Processprocess=null;
    try {
        process = Runtime.getRuntime().exec("su");
        DataOutputStreamos=newDataOutputStream(process.getOutputStream());
        os = newDataOutputStream(process.getOutputStream());
        os.writeBytes("echo 'install_zip(\"" + location + "\");'" + " > /cache/recovery/extendedcommand\n");
        os.writeBytes("reboot recovery\n");
        os.writeBytes("exit\n");
        os.flush();
        return (process.waitFor() == 0);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        Log.e("FLASH:", "Unable to boot into recovery");
        e.printStackTrace();
    }
        returnfalse;
}