安卓调用系统摄像头拍照并保存到本地

最近在写新项目，需求里面需要用到摄像头拍照，并且把排下来的照片放进ImageView中显示，为了后续控件的调用，自然想到要存储在本地，安卓很人性的提供了好多数据存储的方式，在本项目里我选择了存储在手机内存卡上面，调用摄像头拍照思路很简单，利用安卓系统内部的Intent对象传递参数，进行方法回调达到目的，大致源码如下

/** * Created by 谢栋 on 2016/8/14. */ public class UpGoods extends Fragment { private View mView; private ImageView goodsImageView; private EditText titleEditText; private EditText contentEditText; private EditText nameEditText; private EditText phoneEditText; private Button commitButton; private GoodsBenn goodsBenn; private Bitmap mBitmap; @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { mView = inflater.inflate(R.layout.loadesgoods, null); //初始化Bmob的SDK Bmob.initialize(getActivity(), "df25a6c6a79479d11a60f2e89c68b467"); //初始化控件 initView(); return mView; } private void initView() { goodsImageView = (ImageView) mView.findViewById(R.id.iv_goods); titleEditText = (EditText) mView.findViewById(R.id.ed_title); contentEditText = (EditText) mView.findViewById(R.id.ed_desc); nameEditText = (EditText) mView.findViewById(R.id.ed_name); phoneEditText = (EditText) mView.findViewById(R.id.ed_phone); commitButton = (Button) mView.findViewById(R.id.commit); goodsImageView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { takePhoto(); } }); //给按钮绑定监听事件 commitButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { uploadGoods(); } }); } /** * 上传会员用户的商品详情到数据库 */ private void uploadGoods() { String name = nameEditText.getText().toString(); String phone = phoneEditText.getText().toString(); String title = titleEditText.getText().toString(); String content = contentEditText.getText().toString(); Bitmap bitmap = mBitmap; goodsBenn = new GoodsBenn(); goodsBenn.setName(name); goodsBenn.setPhone(phone); goodsBenn.setGoodsTiltle(title); goodsBenn.setGoodsContent(content); // goodsBenn.setGoodsBitmap(bitmap); //上传图片文件并且返回图片的url String picPath = "/sdcard/qyb/Goods.jpg"; final BmobFile bmobFile = new BmobFile(new File(picPath)); bmobFile.uploadblock(new UploadFileListener() { @Override public void done(BmobException e) { if (e == null) { //bmobFile.getFileUrl()--返回的上传文件的完整地址 Log.i("上传文件成功:", bmobFile.getFileUrl().toString()); //得到商品存储的url地址之后，代码商品属性加载加载完成，然后把各项数据存进数据库 goodsBenn.setGoodsUrl(bmobFile.getFileUrl() + ""); goodsBenn.save(new SaveListener<String>() { @Override public void done(String s, BmobException e) { if (e == null) { Toast.makeText(getActivity(), "上传成功", Toast.LENGTH_SHORT).show(); } else { Log.i("xie", e.toString()); } } }); } else { Log.i("上传文件失败：", e.getMessage().toString()); } } @Override public void onProgress(Integer value) { // 返回的上传进度（百分比） } }); } //调用摄像机拍照并存储在指定位置 private void takePhoto() { // TODO Auto-generated method stub Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, 1); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data); if (resultCode == Activity.RESULT_OK) { String sdStatus = Environment.getExternalStorageState(); if (!sdStatus.equals(Environment.MEDIA_MOUNTED)) { // 检测sd是否可用 Log.i("TestFile", "SD card is not avaiable/writeable right now."); return; } String name = "Goods" + ".jpg"; Toast.makeText(getActivity(), name, Toast.LENGTH_LONG).show(); Bundle bundle = data.getExtras(); mBitmap = (Bitmap) bundle.get("data");// 获取相机返回的数据，并转换为Bitmap图片格式 FileOutputStream b = null; File file = new File("/sdcard/qyb/"); file.mkdirs();// 创建文件夹 String fileName = "/sdcard/qyb/" + name; try { b = new FileOutputStream(fileName); mBitmap.compress(Bitmap.CompressFormat.JPEG, 100, b);// 把数据写入文件 } catch (FileNotFoundException e) { e.printStackTrace(); } finally { try { b.flush(); b.close(); } catch (IOException e) { e.printStackTrace(); } } try { goodsImageView.setImageBitmap(mBitmap);// 将图片显示在ImageView里 } catch (Exception e) { Log.e("error", e.getMessage()); } } } }

布局文件也很简单，项目要上传商品信息，一个ImageView，几个editText，加上一个Button,具体代码如下

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" android:layout_gravity="center" > <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:gravity="center" android:layout_gravity="center" > <ImageView android:id="@+id/iv_goods" android:layout_width="200dp" android:layout_height="200dp" android:src="@drawable/gesture" /> <EditText android:id="@+id/ed_title" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" android:layout_width="fill_parent" android:padding="5dp" style="@style/edittextStyle" android:layout_height="wrap_content" android:hint="请输入您商品的名称"/> <EditText android:padding="5dp" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="请简短描叙下您的商品" style="@style/edittextStyle" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" android:id="@+id/ed_desc" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" > <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="您的称呼" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" android:id="@+id/ed_name" /> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="联系方式" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" android:id="@+id/ed_phone" /> </LinearLayout> <Button android:id="@+id/commit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="提交商品" style="@style/btnStyle" /> </LinearLayout> </LinearLayout>

最后别忘了加权限

 

<!-- 在SDCard中创建与删除文件权限 --> <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/> <!-- 往SDCard写入数据权限 --> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-feature android:name = "android.hardware.camera" /> <uses-feature android:name = "android.hardware.camera.autofocus" />