如何在android中使用intent发送电子邮件 android使用intent发送电子邮件

我们可以通过intent在android中轻松发送电子邮件。你只需要编写以下几行代码即可

Intent email = new Intent(Intent.ACTION_SEND); email.putExtra(Intent.EXTRA_EMAIL, new String[]{ to}); email.putExtra(Intent.EXTRA_SUBJECT, subject); email.putExtra(Intent.EXTRA_TEXT, message); //need this to prompts email client only email.setType("message/rfc822"); startActivity(Intent.createChooser(email, "Choose an Email client :"));

android中的电话示例
activity_main.xml【如何在android中使用intent发送电子邮件】从面板上拖动2个EditText，1个MultiLine EditText，3个TextView和1个按钮，现在activity_main.xml文件将如下所示：

< RelativeLayout xmlns:androclass="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" >< EditText android:id="@+id/editText1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_marginRight="22dp" android:layout_marginTop="16dp" android:ems="10" />< EditText android:id="@+id/editText2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/editText1" android:layout_below="@+id/editText1" android:layout_marginTop="18dp" android:ems="10" >< requestFocus /> < /EditText>< EditText android:id="@+id/editText3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/editText2" android:layout_below="@+id/editText2" android:layout_marginTop="28dp" android:ems="10" android:inputType="textMultiLine" />< TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/editText1" android:layout_alignBottom="@+id/editText1" android:layout_alignParentLeft="true" android:text="To:" />< TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/editText2" android:layout_alignBottom="@+id/editText2" android:layout_alignParentLeft="true" android:text="Subject:" />< TextView android:id="@+id/textView3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/editText3" android:layout_alignBottom="@+id/editText3" android:layout_alignParentLeft="true" android:text="Message:" />< Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/editText3" android:layout_below="@+id/editText3" android:layout_marginLeft="76dp" android:layout_marginTop="20dp" android:text="Send" />< /RelativeLayout>

活动类让我们编写代码以通过意图发送电子邮件。

package com.example.sendemail; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; public class MainActivity extends Activity { EditText editTextTo, editTextSubject, editTextMessage; Button send; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); editTextTo=(EditText)findViewById(R.id.editText1); editTextSubject=(EditText)findViewById(R.id.editText2); editTextMessage=(EditText)findViewById(R.id.editText3); send=(Button)findViewById(R.id.button1); send.setOnClickListener(new OnClickListener(){@Override public void onClick(View arg0) { String to=editTextTo.getText().toString(); String subject=editTextSubject.getText().toString(); String message=editTextMessage.getText().toString(); Intent email = new Intent(Intent.ACTION_SEND); email.putExtra(Intent.EXTRA_EMAIL, new String[]{ to}); email.putExtra(Intent.EXTRA_SUBJECT, subject); email.putExtra(Intent.EXTRA_TEXT, message); //need this to prompts email client only email.setType("message/rfc822"); startActivity(Intent.createChooser(email, "Choose an Email client :")); }}); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_main, menu); return true; }}