我只是试图用相机拍照,而我正在处理权限,调试器返回java.io.IOException: Permission denied
,但我无法识别该错误。Android相机访问被拒绝
这里拍照键呼叫:
btn_cam.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
camera = new CameraPicture(getApplicationContext(), 10, 15);
String[] permissionRequested = {Manifest.permission.CAMERA};
requestPermissions(permissionRequested, camera.getPermissionRequest());
}
});
}
这里有趣的一块CameraPicture
类处理相机的代码:
public CameraPicture(Context context, int act_res_req_num, int perm_req_num) {
this.context = context;
this.cam_activity_result_req_num = act_res_req_num;
this.cam_perm_req_num = perm_req_num;
}
public Intent takePhotoIntent() throws IOException {
File photoFile;
Intent in = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (in.resolveActivity(this.context.getPackageManager()) != null && (photoFile = this.createImageFile()) != null) {
in.putExtra("output", (Parcelable)Uri.fromFile((File)photoFile));
}
return in;
}
private File createImageFile() throws IOException {
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = Environment.getExternalStoragePublicDirectory((String)Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(imageFileName, ".jpg", storageDir);
this.photoPath = image.getAbsolutePath();
return image;
}
而这里似乎捕捉到了异常的认可方式:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if ((requestCode==camera.getPermissionRequest()) && (grantResults[0]==PackageManager.PERMISSION_GRANTED)){
try {
startActivityForResult(camera.takePhotoIntent(), camera.getActResultRequest());
} catch (IOException e) {
e.printStackTrace();
System.out.println("ERROR MESSAGE: "+e);
Toast.makeText(getApplicationContext(),"Error taking the picture ",Toast.LENGTH_LONG).show();
}
}else{
Toast.makeText(getApplicationContext(),"Unable to accesss the camera without permission",Toast.LENGTH_LONG).show();
}
}
你看到有什么问题吗?
编辑:忘了展示一张清单
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
改变这个Manifest.permission.CAMERA到android.Manifest.permission.CAMERA –
粘贴清单请.check清单中的权限 –
您是否添加了 明显? –
Akshay