Use the camera with android -


i'm trying use camera app when push button application crashes , in android monitor appears following message:

java.lang.securityexception: permission denial: starting intent {  act=android.media.action.image_capture  cmp=com.android.camera2/com.android.camera.captureactivity }  processrecord{bd3e6b7 4753:com.demonsystem.trackingticket/u0a94} (pid=4753,  uid=10094) revoked permission android.permission.camera

this code in main activity:

btncamara.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view view) {                 intent = new intent(mediastore.action_image_capture);                 startactivityforresult(i,0); <-- here shows error                 ocultar();             }         });

and these permissions:

private void checkcamerapermission() {         int permissioncheck = contextcompat.checkselfpermission(                 this, manifest.permission.camera);         if (permissioncheck != packagemanager.permission_granted) {             log.i("mensaje", "no se tiene permiso para la camara!.");             activitycompat.requestpermissions(this, new string[]{manifest.permission.camera}, 225);         } else {             log.i("mensaje", "tienes permiso para usar la camara.");         }     }

these uses wrote in manifest:

<uses-permission android:name="android.permission.camera" /> <uses-feature android:name="android.hardware.camera" /> <uses-feature android:name="android.hardware.camera.autofocus" />

enter image description here

btncamara.setonclicklistener(new view.onclicklistener() {     @override     public void onclick (view view){     if (haspermissionusecamera()) {         intent = new intent(mediastore.action_image_capture);         startactivityforresult(i, 0);          ocultar();     }   } }  public boolean haspermissionusecamera() {     if (build.version.sdk_int >= 23) {         if (activitycompat.checkselfpermission(getcontext(), manifest.permission.write_external_storage) == packagemanager.permission_granted) {             return true;         } else {             requestpermissions(new string[]{manifest.permission.camera}, 0);             return false;         }     } else { //permission automatically granted on sdk<23 upon installation         return true;     } }  @requiresapi(api = build.version_codes.m) @override public void onrequestpermissionsresult(int requestcode, @nonnull string[] permissions, @nonnull int[] grantresults) {      switch (requestcode) {         case 0: {             if (getactivity().checkselfpermission(manifest.permission.camera) == packagemanager.permission_granted) {                 intent = new intent(mediastore.action_image_capture);                 startactivityforresult(i, 0);                  ocultar();             } else {                 toast.maketext(getactivity(), "access denied", toast.length_short).show();             }             break;         }     } }

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