android - 在存储在 sdcard 中的 sqlite 数据库中通过相机点击后保存图像

Question

我想点击手机摄像头的图像，然后将此图像保存在存储在 sdcard.plz 中的 sqlite 数据库中，告诉我我该怎么做？？以下是我编写的代码点击图片

        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        File file = new File(Environment.getExternalStorageDirectory(), bb);

        outputFileUri = Uri.fromFile(file);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
        startActivityForResult(intent, TAKE_PICTURE);

Answer 1

在 list 中授予权限:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-feature android:name="android.hardware.camera"/>
<uses-feature android:name="android.hardware.camera.autofocus"/>

File destination = new   File(Environment.getExternalStorageDirectory(),"image.jpg");
 Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
 intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(destination));
 startActivityForResult(intent, CAMERA_PICTURE);

然后从目标图像覆盖 onActivityResult gat 图像文件，并将其转换为位图并保存。然后将其转换为字节数组

 @Override
      public void onActivityResult(int requestCode, int resultCode, Intent data){
        if(requestCode == CAMERA_PICTURE && resultCode == Activity.RESULT_OK) {
               realImageStr = new String("");
             try {
        FileInputStream in = new FileInputStream(destination);
            BitmapFactory.Options options = new BitmapFactory.Options();
            options.inSampleSize = 10; //Downsample 10x
            Log.d("PP", " bitmap factory=========="+options);
            Bitmap user_picture_bmp = BitmapFactory.decodeStream(in, null, options);
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            user_picture_bmp.compress(Bitmap.CompressFormat.PNG, 100, bos);
            byte[] bArray = bos.toByteArray();
        } catch (Exception e) 
        {
        } }}

当您将保存为字节类型然后保存到数据库中图像列中的字节码并且图像列数据类型为BLOB 类型。