Fix/ignore Android warnings.

import android.widget.TextView;

import android.widget.ZoomControls;

// ignore warning about "Call to Thread.sleep in a loop", this is only test code

@SuppressWarnings("BusyWait")

public class MainActivityTest extends ActivityInstrumentationTestCase2<MainActivity> {

    private static final String TAG = "MainActivityTest";

    private MainActivity mActivity = null;

    <uses-permission android:name="android.permission.BLUETOOTH" />

    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"

        android:maxSdkVersion="28"/>

        android:maxSdkVersion="28"

        tools:ignore="ScopedStorage" />

    <uses-permission android:name="android.permission.CAMERA" />

    <uses-permission android:name="android.permission.RECORD_AUDIO" />

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

                        break;

                }

                if( test_slow_saving ) {

                    // ignore warning about "Call to Thread.sleep in a loop", this is only activated in test code

                    //noinspection BusyWait

                    Thread.sleep(2000);

                }

                if( MyDebug.LOG ) {

    private final Context context;

    private CameraDevice camera;

    private String cameraIdS;

    private final String cameraIdS;

    private final boolean is_samsung;

    private final boolean is_samsung_s7; // Galaxy S7 or Galaxy S7 Edge