Android:检查摄像头是否支持自动对焦？
Android:检查摄像头是否支持自动对焦？
提问于 2010-12-07 00:24:42
对于Android API版本2.1和更高版本，我们可以使用context：
getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_AUTOFOCUS)但是在2.1版本之前，我们如何执行同样的操作呢？有没有类似这样的东西不需要先调用Camera.open，然后调用getParameters
回答 4
Stack Overflow用户
发布于 2014-04-24 20:16:12
List<String> supportedFocusModes = camera.getParameters().getSupportedFocusModes();
boolean hasAutoFocus = supportedFocusModes != null && supportedFocusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO)Stack Overflow用户
发布于 2015-04-15 20:38:37
private void getSuppourtedFocusedModes(Camera camera)
{
final Camera.Parameters parameters = camera.getParameters();
List<String> supportedFocusModes = parameters.getSupportedFocusModes();
LogUtils.infoMsg("supportedFocusModes " + supportedFocusModes);
for (String mode : supportedFocusModes) {
LogUtils.infoMsg("supportedFocusModes " + mode);
}
}Stack Overflow用户
发布于 2018-02-28 04:53:19
CameraManager cameraManager = (android.hardware.camera2.CameraManager) getSystemService(CAMERA_SERVICE);
int[] afModes = cameraManager.getCameraCharacteristics("0").get(CameraCharacteristics.CONTROL_AF_AVAILABLE_MODES);
if (afModes.length <= 1)
{Log.d(TAG, "Camera doesn't have autofocus");}
else
{Log.d(TAG, "Camera has autofocus");}
Log.d(TAG, "CONTROL_AF_AVAILABLE_MODES:");
for (int position : afModes) {
switch (afModes[position]) {
case 0:
Log.d(TAG, "CONTROL_AF_MODE_OFF (0)");
break;
case 1:
Log.d(TAG, "CONTROL_AF_MODE_AUTO (1)");
break;
case 2:
Log.d(TAG, "CONTROL_AF_MODE_MACRO (2)");
break;
case 3:
Log.d(TAG, "CONTROL_AF_MODE_CONTINUOUS_VIDEO (3)");
break;
case 4:
Log.d(TAG, "CONTROL_AF_MODE_CONTINUOUS_PICTURE (4)");
break;
case 5:
Log.d(TAG, "CONTROL_AF_MODE_EDOF (5)");
break;
default:
Log.d(TAG, String.valueOf(afModes[position]));
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/4368564
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