如何在 Android 设备中获取相机传感器尺寸? [英] How to get Camera Sensor Size in android device?

问题描述

谁能知道如何在安卓设备中获取相机的传感器尺寸?

can anyone know how to get sensor size of camera in android device ?

谢谢

推荐答案

从 API 级别 21 开始就有可能.来自文档 (https://developer.android.com/reference/android/hardware/camera2/CameraCharacteristics.html#SENSOR_INFO_PHYSICAL_SIZE):

It is possible as of API level 21. From the documentation (https://developer.android.com/reference/android/hardware/camera2/CameraCharacteristics.html#SENSOR_INFO_PHYSICAL_SIZE):

public static final Key SENSOR_INFO_PHYSICAL_SIZE

public static final Key SENSOR_INFO_PHYSICAL_SIZE

全像素阵列的物理尺寸.[...]

The physical dimensions of the full pixel array. [...]

单位:毫米

我使用这种代码.请注意，可能不止一个摄像头:

I use this kind of code. Beware, there might be more than just one camera:

import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraManager;

private SizeF getCameraResolution(int camNum)
{
    SizeF size = new SizeF(0,0);
    CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
    try {
        String[] cameraIds = manager.getCameraIdList();
        if (cameraIds.length > camNum) {
            CameraCharacteristics character = manager.getCameraCharacteristics(cameraIds[camNum]);
            size = character.get(CameraCharacteristics.SENSOR_INFO_PHYSICAL_SIZE);
        }
    }
    catch (CameraAccessException e)
    {
        Log.e("YourLogString", e.getMessage(), e);
    }
    return size;
}

注意异常CameraAccessException需要被捕获.

不要忘记将 <uses-sdk android:minSdkVersion="21"/> 添加到您的清单中.

Don't forget to add <uses-sdk android:minSdkVersion="21" /> to your manifest.

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