我得到一个错误＆QUOT;没有应用程序可以执行此操作＆QUOT;在发送一个电子邮件 [英] I get an error" No application can perform this action" while sending an email

问题描述

下面是code，除了没有应用程序对一切行之有效的可以执行此操作error..Please让我知道什么是在code中的错误。

 公共无效发送（查看按钮）{
        //请点击这里处理
        最终的EditText日期=（EditText上）findViewById（R.id.editText1）;
        。字符串DA = date.getText（）的toString（）;        最终的EditText手机=（EditText上）findViewById（R.id.editText2）;
        。字符串的pH = phone.getText（）的toString（）;        最终的EditText铭牌=（EditText上）findViewById（R.id.editText3）;
        字符串NP = nameplate.getText（）的toString（）。        最终的EditText问题=（EditText上）findViewById（R.id.editText4）;
        。字符串I = issue.getText（）的toString（）;        StringBuilder的S =新的StringBuilder（100）;
        s.append（DA）;
        s.append（。）;
        s.append（PH）;
        s.append（。）;
        s.append（NP）;
        s.append（。）;
        s.append（ⅰ）;        串ST = s.toString（）;
        意图emailIntent =新意图（android.content.Intent.ACTION_SEND）;
        //emailIntent.setType(\"plain/text）;
        // startActivity（emailIntent）;
        startActivity（Intent.createChooser（emailIntent，送你的电子邮件：））;        意图emailIntentt =新意图（android.content.Intent.ACTION_SEND）;        字符串aEmailList [] = {[e-mail]};
        emailIntentt.putExtra（android.content.Intent.EXTRA_EMAIL，aEmailList）;
        //emailIntentt.putExtra(android.content.Intent.EXTRA_CC，aEmailCCList）;
        //emailIntentt.putExtra(android.content.Intent.EXTRA_BCC，aEmailBCCList）;        emailIntentt.putExtra（android.content.Intent.EXTRA_SUBJECT，反馈）;        emailIntentt.setType（信息/ RFC822）;
        emailIntentt.putExtra（android.content.Intent.EXTRA_TEXT，ST）;
        startActivityForResult（emailIntentt，REQUEST_SEND_MAIL）;
    }
    公共静态最终诠释REQUEST_SEND_MAIL = 1;    公共无效的onActivityResult（INT申请code，INT结果code，意图数据）{        开关（要求code）{
        案例REQUEST_SEND_MAIL：
            //当请求发送邮件的回报
            如果（结果code == Activity.RESULT_OK）{
                Toast.makeText（这一点，消息发送成功，Toast.LENGTH_SHORT）.show（）;            }其他{
                Toast.makeText（这一点，对不起，Toast.LENGTH_SHORT）.show（）;
            }            }}
 

解决方案

您有 startActivity（）和 startActivityForResult ！您需要一个。这就是为什么第一个意图被炒鱿鱼，​​也没有应用程序来抓住它。

试试这个：

 意图emailIntent =新意图（android.content.Intent.ACTION_SEND）;
字符串aEmailList [] = {[e-mail]};emailIntent.setType（纯/文）;
emailIntent.putExtra（android.content.Intent.EXTRA_EMAIL，aEmailList）;
emailIntent.putExtra（android.content.Intent.EXTRA_SUBJECT，反馈）;
emailIntent.putExtra（android.content.Intent.EXTRA_TEXT，ST）;startActivityForResult（emailIntent，REQUEST_SEND_MAIL）;
 

Here is the code, everythin works well except the no application can perform this action "error..Please let me know what is the mistake in the code.

 public void sends(View button) {   
        // Do click handling here  


        final EditText date = (EditText) findViewById(R.id.editText1);  
        String da = date.getText().toString();  

        final EditText phone = (EditText) findViewById(R.id.editText2);  
        String ph = phone.getText().toString();  

        final EditText nameplate = (EditText) findViewById(R.id.editText3);  
        String np = nameplate.getText().toString(); 

        final EditText issue = (EditText) findViewById(R.id.editText4);  
        String i = issue.getText().toString(); 

        StringBuilder s= new StringBuilder(100);
        s.append(da);
        s.append(". ");
        s.append(ph);
        s.append(". ");
        s.append(np);
        s.append(". ");
        s.append(i);

        String st=s.toString();




        Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND); 
        //emailIntent.setType("plain/text");
        //startActivity(emailIntent); 
        startActivity(Intent.createChooser(emailIntent, "Send your email in:"));

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

        String aEmailList[] = { "[e-mail]" };  


        emailIntentt.putExtra(android.content.Intent.EXTRA_EMAIL, aEmailList);  
        //emailIntentt.putExtra(android.content.Intent.EXTRA_CC, aEmailCCList);  
        //emailIntentt.putExtra(android.content.Intent.EXTRA_BCC, aEmailBCCList);  

        emailIntentt.putExtra(android.content.Intent.EXTRA_SUBJECT, "Feedback");  

        emailIntentt.setType("message/rfc822");  
        emailIntentt.putExtra(android.content.Intent.EXTRA_TEXT, st);




        startActivityForResult(emailIntentt, REQUEST_SEND_MAIL);
    } 
    public static final int REQUEST_SEND_MAIL = 1;

    public void onActivityResult(int requestCode, int resultCode, Intent data) {



        switch (requestCode) {
        case REQUEST_SEND_MAIL:
            // When the request to send mail returns
            if (resultCode == Activity.RESULT_OK) {
                Toast.makeText(this, "message successfully sent", Toast.LENGTH_SHORT).show();

            } else {
                Toast.makeText(this, "sorry", Toast.LENGTH_SHORT).show();
            }

            }}

解决方案

You have startActivity() and startActivityForResult!!! You need one. That's why the first intent gets fired and there is no app to catch it.

Try this:

Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);   
String aEmailList[] = { "[e-mail]" };  

emailIntent.setType("plain/text");
emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, aEmailList); 
emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Feedback");   
emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, st);

startActivityForResult(emailIntent, REQUEST_SEND_MAIL);

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