Android：如何从应用程序发送图像作为电子邮件附件？

时间：2011-09-29 23:31:07

标签： android image email camera attachment

我目前正在尝试创建一个可以拍照的应用，然后将该照片附加到将要转到预先确定的电子邮件地址的电子邮件中。

我的电子邮件正常工作，我正在使用相机。我似乎无法获得相机已添加为附件的图片。我在应用程序中弹出的图像作为一种预览图像，如果这就是为什么它不会附加我没有问题。

发送电子邮件时，已创建图片但已损坏且无法打开。好像我正在制作一张不存在的画面。我认为这是将拍摄的照片与创作附件部分联系起来的情况，但我不知道！如果有人可以提供帮助，我将非常感激！

以下是我的MainActivity，其中包含与相机一起创建的电子邮件：

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;

import android.app.Activity;
import android.content.ContentValues;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore.Images;
import android.provider.MediaStore.Images.Media;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;

public class EmailActivity extends Activity {
        Button send;
        EditText address, subject, emailtext;
        protected static final int CAMERA_PIC_REQUEST = 0;



    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.email);
        send=(Button) findViewById(R.id.emailsendbutton);
        address=(EditText) findViewById(R.id.emailaddress);
        subject=(EditText) findViewById(R.id.emailsubject);
        emailtext=(EditText) findViewById(R.id.emailtext);

        send.setOnClickListener(new OnClickListener() {

                        @Override
                        public void onClick(View v) {
                                // TODO Auto-generated method stub

                            if
                            (!Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()))
                            {

                            }

                            File pngDir = new File(

                                    Environment.getExternalStorageDirectory(),
                                    "Android/data/com.phstudios.jbrefurb/quote");

                            if (!pngDir.exists())
                                pngDir.mkdirs();

                            File pngFile = new File(pngDir, "pic1.png");
                            Uri pngUri = Uri.fromFile(pngFile);


                                     Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);

                                      emailIntent.setType("image/png");

                                      emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, new String[]{ "random@yahoo.co.uk"});

                                      emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, subject.getText());

                                      emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, emailtext.getText());

                                      emailIntent.putExtra(android.content.Intent.EXTRA_STREAM, pngUri);

                                      emailIntent.setType("image/png");


                                    EmailActivity.this.startActivity(Intent.createChooser(emailIntent, "Send mail..."));

     }
            });

 Button camera = (Button) findViewById(R.id.button2); 
        camera.setOnClickListener(new View.OnClickListener() { 
            public void onClick(View view) {
                Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                  startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);  
;

                }     
            });  
        }  

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {         
        if (requestCode== 0 && resultCode == Activity.RESULT_OK){                 
            Bitmap x = (Bitmap) data.getExtras().get("data");                 
            ((ImageView)findViewById(R.id.imageView1)).setImageBitmap(x);                 
            ContentValues values = new ContentValues();

            values.put(Images.Media.TITLE, "title");         
            values.put(Images.Media.BUCKET_ID, "test");         
            values.put(Images.Media.DESCRIPTION, "test Image taken");         
            values.put(Images.Media.MIME_TYPE, "image/png");         
            Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, values);         
            OutputStream outstream;                 
            try {                         
                outstream = getContentResolver().openOutputStream(uri);          
                x.compress(Bitmap.CompressFormat.JPEG, 70, outstream);         
                outstream.close();                 
                } catch (FileNotFoundException e) {                         
                    //                 
                    }catch (IOException e){                         
                        //                 
                        }         
            } }   
    }

我希望它简单，我只是不将它们连接在一起。

3 个答案:

答案 0 :(得分：3)

import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.app.NavUtils;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;


import android.content.ContentValues;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.net.Uri;

import android.provider.MediaStore.Images;
import android.provider.MediaStore.Images.Media;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;


 public class MainActivity extends Activity {
  Button send;
  Bitmap thumbnail;
  File pic;
  EditText address, subject, emailtext;
  protected static final int CAMERA_PIC_REQUEST = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    send=(Button) findViewById(R.id.emailsendbutton);
    address=(EditText) findViewById(R.id.emailaddress);
    subject=(EditText) findViewById(R.id.emailsubject);
    emailtext=(EditText) findViewById(R.id.emailtext);










    Button camera = (Button) findViewById(R.id.button1); 
    camera.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View arg0){
            Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);  

        }
        });

        send.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0){

            Intent i = new Intent(Intent.ACTION_SEND);
            i.putExtra(Intent.EXTRA_EMAIL, new String[]{"fake@fake.edu"});
            i.putExtra(Intent.EXTRA_SUBJECT,"On The Job");
            //Log.d("URI@!@#!#!@##!", Uri.fromFile(pic).toString() + "   " + pic.exists());
            i.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(pic));

            i.setType("image/png");
            startActivity(Intent.createChooser(i,"Share you on the jobing"));
        }
        });


} 

protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
    if (requestCode == CAMERA_PIC_REQUEST) {  
     thumbnail = (Bitmap) data.getExtras().get("data");  
    ImageView image = (ImageView) findViewById(R.id.imageView1);  
    image.setImageBitmap(thumbnail);


        try {
            File root = Environment.getExternalStorageDirectory();
            if (root.canWrite()){
                 pic = new File(root, "pic.png");
                FileOutputStream out = new FileOutputStream(pic);
                thumbnail.compress(CompressFormat.PNG, 100, out);
                out.flush();
                out.close();
            }
        } catch (IOException e) {
            Log.e("BROKEN", "Could not write file " + e.getMessage());
        }   

    }  
}

答案 1 :(得分：0)

试试这个

        Intent i = new Intent(Intent.ACTION_SEND);
    i.setType("text/plain");
    i.putExtra(Intent.EXTRA_EMAIL  , new String[]{"123@gmail.com"});
    i.putExtra(Intent.EXTRA_SUBJECT, " report");
    i.putExtra(Intent.EXTRA_TEXT   , "PFA");
    i.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(destinationFile));//pngFile 

        startActivity(Intent.createChooser(i, "Send mail..."));

答案 2 :(得分：0)

试试这个

        send.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View arg0) {
                Intent i = new Intent(Intent.ACTION_SEND);
                i.putExtra(Intent.EXTRA_EMAIL, new String[]{"fake@fake.edu"});
                i.putExtra(Intent.EXTRA_SUBJECT, "On The Job");
                //Log.d("URI@!@#!#!@##!", Uri.fromFile(pic).toString() + "   " + pic.exists());
                if(pic != null)
                {  i.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(pic));}

                i.setType("image/png");
                i.setType("message/rfc822");

                startActivity(Intent.createChooser(i, "Share you on the jobing"));

            }
        });
    }
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