Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.app.Activity;

import android.hardware.Camera;

import android.util.Log;
import android.view.Surface;

public class Main {
    private static final String TAG = "CameraHelper";

    public static int setCameraDisplayOrientation(Activity activity, int cameraId, Camera camera) {
        Camera.CameraInfo info = new Camera.CameraInfo();
        Camera.getCameraInfo(cameraId, info);
        int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
        int degrees = 0;
        switch (rotation) {
        case Surface.ROTATION_0:
            degrees = 0;
            break;
        case Surface.ROTATION_90:
            degrees = 90;
            break;
        case Surface.ROTATION_180:
            degrees = 180;
            break;
        case Surface.ROTATION_270:
            degrees = 270;
            break;
        }

        int result;
        if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
            result = (info.orientation + degrees) % 360;
            result = (360 - result) % 360; // compensate the mirror
        } else { // back-facing
            result = (info.orientation - degrees + 360) % 360;
        }
        Log.d(TAG, "camera display orientation: " + result);
        camera.setDisplayOrientation(result);

        return result;
    }
}