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私は、電子メールクライアントを通じて人々が食品を寄付できる小さなAndroidアプリを構築しています。写真を撮ってサムネイルを表示した後、私が送信を押すと、Gmailアプリ（電子メールクライアント）がクラッシュします。基本的には、今撮影した画像から画像添付ファイルとともにメールでユーザー入力情報を送信したいと考えています。写真を撮って電子メールクライアント（アンドロイドアプリ）で添付ファイルとして送信することに直面する問題
私はイメージファイルの添付領域の周りに何か間違っていると知っています。 ヘルプ！
XML：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="1">
<TextView
android:id="@+id/textView7"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Name of Company/Individual:" />
<EditText
android:id="@+id/etCompName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:textAllCaps="true"
android:hint="Ex: Chicken Hut, Kaldi's Coffee, etc" />
<TextView
android:id="@+id/textView8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Telephone Number (required)" />
<EditText
android:id="@+id/etPhone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="Ex: 0922092161"
android:inputType="phone" />
<TextView
android:id="@+id/textView9"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Describe your Location:" />
<EditText
android:id="@+id/etLocation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:textAllCaps="true"
android:hint="Briefly describe where you are located..." />
<TextView
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Food Type:" />
<EditText
android:id="@+id/etFoodType"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:textAllCaps="true"
android:hint="Ex: Local Food, Sandwiches, etc." />
<TextView
android:id="@+id/textView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Estimated Quantity (in grams):" />
<EditText
android:id="@+id/etQuantity"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:textAllCaps="true"
android:hint="Ex: 1kg, 50g, etc." />
<TextView
android:id="@+id/textView3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Snap a Picture of Food (if available)" />
<ImageView
android:id="@+id/ivFood"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="@mipmap/ic_launcher"
android:layout_weight="0.9" />
<Button
android:id="@+id/bCam"
style="@style/Widget.AppCompat.Button.Borderless.Colored"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="0dp"
android:background="#ee9d3e"
android:text="Open Camera"
android:textColor="#ffffff" />
<Button
android:id="@+id/bSubmit"
android:background="#cecbc8"
android:textColor="#ffffff"
style="@android:style/Widget.DeviceDefault.Button.Borderless"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Submit" />
</LinearLayout>
JAVA：
package com.example.android.foodshare;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
public class Donation extends AppCompatActivity implements
View.OnClickListener {
Button submit, open_cam;
EditText company_name;
EditText phone_number;
EditText location;
EditText foodType;
EditText quantity;
ImageView the_food;
String companyNameString;
String phoneNumberString;
String locationString;
String foodTypeString;
String quantityString;
String emailTo = "[email protected]";
String emailContent;
String emailSubject;
static final int REQUEST_IMAGE_CAPTURE = 1;
Bitmap imageBitmap;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.donation);
submit = (Button) findViewById(R.id.bSubmit);
open_cam = (Button) findViewById(R.id.bCam);
the_food = (ImageView) findViewById(R.id.ivFood);
company_name = (EditText) findViewById(R.id.etCompName);
phone_number = (EditText) findViewById(R.id.etPhone);
location = (EditText) findViewById(R.id.etLocation);
foodType = (EditText) findViewById(R.id.etFoodType);
quantity = (EditText) findViewById(R.id.etQuantity);
submit.setOnClickListener(this);
open_cam.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bCam:
Intent takePictureIntent = new
Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager())
!= null) {
startActivityForResult(takePictureIntent,
REQUEST_IMAGE_CAPTURE);
}
break;
case R.id.bSubmit:
companyNameString = company_name.getText().toString();
phoneNumberString = phone_number.getText().toString();
locationString = location.getText().toString();
foodTypeString = foodType.getText().toString();
quantityString = quantity.getText().toString();
emailContent = "You have received a Food Pickup Request. Please
find further details below:\n\n" +
"Name of Organization (or Individual): " +
companyNameString + "\n" +
"Telephone Number: " + phoneNumberString + "\n" +
"Location: " + locationString + "\n" +
"Available Food Type: " + foodTypeString + "\n" +
"Quantity Available: " + quantityString;
emailSubject = "New Food Pickup Request From " +
companyNameString; // maybe add from which company
Intent emailIntent = new Intent(Intent.ACTION_SEND);
emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[]{emailTo});
emailIntent.putExtra(Intent.EXTRA_SUBJECT, emailSubject);
emailIntent.putExtra(Intent.EXTRA_TEXT, emailContent);
emailIntent.putExtra(Intent.EXTRA_STREAM, imageBitmap);
//need this to prompts email client only
emailIntent.setType("message/rfc822");
try {
startActivity(Intent.createChooser(emailIntent, "Send
mail..."));
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(Donation.this, "There are no email clients
installed.", Toast.LENGTH_SHORT).show();
}
break;
} // end of switch statement
};
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
imageBitmap = (Bitmap) extras.get("data");
the_food.setImageBitmap(imageBitmap);
}
}
}