title: how to install apk file programmatically
body: <p>I want to install an apk file from my application.</p>
  
  <p>I have created an app that contains a button, when I click that button then another apk 
  that I have stored in resources folder should be install,
  <br>Heres something I have done :</p>
  
  <pre><code>public void onClick(View v) {
      // Intent intent = new Intent("com.google.zxing.client.android.SCAN");
      // intent.setPackage("com.google.zxing.client.android");
      // intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
      // startActivityForResult(intent, 0);
      File file = new File("android.resource://com.app.barcodescanner/raw", "scan.apk");
      Intent intent = new Intent(Intent.ACTION_VIEW);
      intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
      startActivity(intent);
  }
  </code></pre>
  
  <p>any ideas ?
  <br>please help me with this</p>