android - 使用android camera intent，获取uri，然后使用uri

Question

我有以下代码:

public void take_picture(View view)
{


 Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
 startActivityForResult(cameraIntent, CAMERA_REQUEST); 
}


protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
    ImageView slikaa = (ImageView)this.findViewById(R.id.slikaa);
    if ((requestCode == CAMERA_REQUEST)&& (resultCode == Activity.RESULT_OK)) {  

Bitmap photo = (Bitmap) data.getExtras().get("data"); 
        slikaa.setImageBitmap(photo);


} 

现在我的问题是如何获取该图像路径(用于将其保存到我的数据库)，然后再次使用它在图片中显示(我不知道如何获取字符串路径，然后重新使用它)

Answer 1

要在 onActivityResult 中获取图像路径，您需要通过发送带有 Intent 的图像路径来启动相机:

       Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);  

        //ContentValues values = new ContentValues();  
        ContentValues values = new ContentValues(3);  
        values.put(MediaStore.Images.Media.DISPLAY_NAME, "testing");  
        values.put(MediaStore.Images.Media.DESCRIPTION, "this is description");  
        values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");  
        imageFilePath = MainActivity.this.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);  
        intent.putExtra(MediaStore.EXTRA_OUTPUT, imageFilePath); 

        startActivityForResult(intent, CAMERA_REQUEST); 

和onActivityResult

            protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
           ImageView slikaa = (ImageView)this.findViewById(R.id.slikaa);
            if ((requestCode == CAMERA_REQUEST)&& (resultCode == Activity.RESULT_OK)) {  
           //get image from path

            Bitmap photo = (Bitmap) data.getExtras().get("data"); 
            photo = BitmapFactory.decodeStream(this.getContentResolver()  
                .openInputStream(imageFilePath), null, op);  
            slikaa.setImageBitmap(pic);  

            //slikaa.setImageBitmap(photo);
          }