android - 如何在 Android 设备中获取相机传感器尺寸？

Question

谁能知道如何在 android 设备中获取相机的传感器尺寸？

谢谢

Answer 1

从 API 级别 21 开始是可能的。来自文档 (https://developer.android.com/reference/android/hardware/camera2/CameraCharacteristics.html#SENSOR_INFO_PHYSICAL_SIZE):

public static final Key SENSOR_INFO_PHYSICAL_SIZE

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

Units: Millimeters

我用的就是这种代码。当心，可能不止一台相机:

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;
}

请注意异常 CameraAccessException需要被捕获。

不要忘记添加 <uses-sdk android:minSdkVersion="21" />到你的 list 。