Install Android APK without prompt

Question

We are writing an Android app that shows ads on large screens. We have a backend where advertisers can select the ads, so they are updated almost instantly. Because there wi

Answer 1

public void InstallAPK(String filename){

    Process process = Runtime.getRuntime().exec("su");
    OutputStream out = process.getOutputStream();
    String reinstall = "pm install -r " + filename + "\n";
    String am = "am start -a android.intent.action.MAIN -n yourPackage/.MainActivity";
    String cmd = reinstall + am + " &";
    out.write(cmd.getBytes());
    out.flush();
    out.close();
    process.waitFor();

}

Answer 2

You can simply use adb install command to install/update APK silently. Sample code is below

public static void InstallAPK(String filename){
    File file = new File(filename); 
    if(file.exists()){
        try {   
            String command;
            command = "adb install -r " + filename;
            Process proc = Runtime.getRuntime().exec(new String[] { "su", "-c", command });
            proc.waitFor();
        } catch (Exception e) {
        e.printStackTrace();
        }
     }
  }

OR

Please check http://paulononaka.wordpress.com/2011/07/02/how-to-install-a-application-in-background-on-android/