List flashmodes = parameters.getSupportedFlashModes();
flashmodes == null; 为什么?
minSdkVersion 14
targetSdkVersion 21
已确定有闪光灯,也添加了权限,
if(!getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH))
{
Log.i(TAG, "当前设备没有闪光灯");
}else //进入这个else
{
List<String> flashmodes = parameters.getSupportedFlashModes();
if(flashmodes == null)
{
Log.i(TAG, "不支持闪光模式设置");
}
}
权限:
<uses-permission android:name="android.permission.FLASHLIGHT"/>