with revoked permission android.permission.CAMERA

Android 6.0之后需要动态申请相机权限

首先得把申明的静态权限删除

然后申请动态权限

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {if (ContextCompat.checkSelfPermission(MainActivity.this,Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {ActivityCompat.requestPermissions(MainActivity.this, newString[]{Manifest.permission.CAMERA }, 1);} else {openCamera();}}

@Overridepublic void onRequestPermissionsResult(int requestCode, String[] permissions,int[] grantResults) {switch (requestCode) {case 1:if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){openCamera();} else {Toast.makeText(this, "You denied the peimission",Toast.LENGTH_SHORT).show();}break;default:}}