permiso de la cámara ejemplo de código java de android

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Ejemplo 1: permiso de la cámara de Android

<uses-permissionandroid:name="android.permission.CAMERA"/>

Ejemplo 2: Permiso de cámara en Android

package edu.gvsu.cis.masl.camerademo;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

public class MyCameraActivity extends Activity

    private static final int CAMERA_REQUEST = 1888; 
    private ImageView imageView;
    private static final int MY_CAMERA_PERMISSION_CODE = 100;

    @Override
    public void onCreate(Bundle savedInstanceState)
    
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        this.imageView = (ImageView)this.findViewById(R.id.imageView1);
        Button photoButton = (Button) this.findViewById(R.id.button1);
        photoButton.setOnClickListener(new View.OnClickListener()
        
            @Override
            public void onClick(View v)
            
                if (checkSelfPermission(Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED)
                
                    requestPermissions(new String[]Manifest.permission.CAMERA, MY_CAMERA_PERMISSION_CODE);
                
                else
                
                    Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
                    startActivityForResult(cameraIntent, CAMERA_REQUEST);
                 
            
        );
    

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
    
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == MY_CAMERA_PERMISSION_CODE)
        
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED)
            
                Toast.makeText(this, "camera permission granted", Toast.LENGTH_LONG).show();
                Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
                startActivityForResult(cameraIntent, CAMERA_REQUEST);
            
            else
            
                Toast.makeText(this, "camera permission denied", Toast.LENGTH_LONG).show();
            
        
    

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data)
      
        if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK)
          
            Bitmap photo = (Bitmap) data.getExtras().get("data"); 
            imageView.setImageBitmap(photo);
          
     

Acuérdate de que tienes la capacidad de añadir un diagnóstico acertado .

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