Android7.0实现拍照和相册选取图片功能

由于android 7.0新增了动态权限，所以我们在做拍照和相册选取功能的时候，需要申请添加动态权限

一、添加权限

1.在androidManifest.XML 文件申请相关权限

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

2.动态获取权限

 void takePhotoClick() {
  if (Build.VERSION.SDK_INT >= 23&&checkCallingOrSelfPermission(Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
   requestPermissions(new String[]{Manifest.permission.CAMERA}, REQUEST_CODE_ASK_PERMISSIONS);
  } else {
   startActivityForResult(new Intent("android.media.action.IMAGE_CAPTURE"), TAKE_PICTURE);
  }
 }


 @Override
 public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
  switch (requestCode) {
   case REQUEST_CODE_ASK_PERMISSIONS:
    if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
     startActivityForResult(new Intent("android.media.action.IMAGE_CAPTURE"), TAKE_PICTURE);
    } else {
     // 没有打开相机的权限
     Toast.makeText(TakePhotoActivity.this, "没有打开照相机权限", Toast.LENGTH_SHORT).show();
    }
    break;
   default:
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
  }
 }

二、完整代码

1.JAVA代码

import android.Manifest;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.d