activity flicker on loading when add scanner to main activity

[waleedmakarem]

I am trying to add this nice library to main activity, and with 2 buttons, one to display and other to hide the scan window. The scan window will be displayed into the main Activity. Issue : when application loads, it flickers. I know this is related to StartCamera. But how to resolve.

Sample project : https://drive.google.com/open?id=1qJ-58JbgFY4YA93CWepB2ivq9BucPraF

Code concept: @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main);

    lotmp = (LinearLayout) findViewById(R.id.lo);
    lotmp.setVisibility(View.GONE);
    btntmp = (Button) findViewById(R.id.btn);
    btntmp.setOnClickListener(this);
    btntmpa = (Button) findViewById(R.id.btna);
    btntmpa.setOnClickListener(this);
    ActivateBarcode();
}
private void ActivateBarcode() {
    ViewGroup contentFrame = (ViewGroup) findViewById(R.id.content_frame);
    mScannerView = new ZXingScannerView(this);
    contentFrame.addView(mScannerView);
    mBeepManager = new BeepManager(this);
 }

public void onClick(View v) { if (v == btntmp) { lotmp.setVisibility(View.GONE); } else if (v == btntmpa) { StartZXINGCamera = true; lotmp.setVisibility(View.VISIBLE); } }

@Override public void onResume() { super.onResume(); mScannerView.setResultHandler(this); mScannerView.startCamera(); }

[stale[bot]]

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