Android : Force the user to select one photo in android

In my android application in file activity_mai.xml I have for default in ImageView set the value of ic_launcher.png.

    <ImageView
        android:id="@+id/viewImage"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0.05"
        android:contentDescription="@string/content"
        android:src="@drawable/ic_launcher" />

I need check that when is executed the upload of image file the image not is ic_launcher and force the user to select one pic existent or taken new photo in his smartphone.

I have tried this method without success, because this check is not performed.

I suppose I'm not doing right but I know why.

I would greatly appreciate your help.

Thanks in advance

My code below:

@Override
public void onClick(View arg0) {

    if (area.getSelectedItem().toString().trim()
            .equalsIgnoreCase("area")) {
        Toast.makeText(MainActivity.this, "area.",
                Toast.LENGTH_SHORT).show();
    } else if (messageText.getText().toString().length() <= 0) {            
        Toast.makeText(MainActivity.this, "message",
                Toast.LENGTH_SHORT).show();         

    } else if (arg0 == btnselectpic) {
        selectImage();
    } else if (arg0 == uploadButton) {

        if (imageview.toString().equals("ic_launcher.png")) {
            messageText.setError("image");
        } else {
            progress = ProgressDialog.show(MainActivity.this, "",
                    "Uploading file...", false, false);

            int secondsDelayed = 5;
            new Handler().postDelayed(new Runnable() {
                public void run() {
                    startActivity(new Intent(MainActivity.this,
                            MainActivity.class));
                    finish();
                }
            }, secondsDelayed * 1000);
        }