打开相机

布局：

<ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:srcCompat="@mipmap/ic_launcher"
    android:id="@+id/imageView" />

<Button
    android:text="拍照然后进入相册"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/button" />

代码：

package com.example.my_zhengliyiixa;


import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import static android.app.Activity.RESULT_OK;


/**
 * A simple {@link Fragment} subclass.
 */
public class Fragment_C extends Fragment implements View.OnClickListener {


//    private ImageView imageView;
    private Button button;
//    private  String sdPath;
//    private  String piPath;
    private  static  int REQUEST_THUMBNALL = 1;

    public Fragment_C() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_fragment__c, container, false);
//     sdPath = Environment.getExternalStorageDirectory().getPath();
//        piPath = sdPath +"/"+"bbt.png";
        initView(view);
        return view;
    }

    private void initView(View view) {
//        imageView = (ImageView) view.findViewById(R.id.imageView);
        button = (Button) view.findViewById(R.id.button);

        button.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.button:
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(intent,REQUEST_THUMBNALL);
                break;
        }
    }

//    @Override
//    public void onActivityResult(int requestCode, int resultCode, Intent data) {
//        super.onActivityResult(requestCode, resultCode, data);
//         if (resultCode == RESULT_OK){
//             if (requestCode == REQUEST_THUMBNALL){
//                 Bundle bundle = data.getExtras();
//                 Bitmap bitmap = (Bitmap) bundle.get("data");
//                 imageView.setImageBitmap(bitmap);
//
//
//
//             }
//
//
//             }
//
//
//         }
    }