如何在Android应用程序中拨打电话,发送短信和发送电子邮件

Question

我有一个自定义listView,我通过自定义适配器设置内容.我无法了解如何进行不同的操作.我有一个活动延伸活动课只有来回这我打电话"onPostExecute()"我的自定义适配器.如何使电话,短信和电子邮件功能工作.

以下是我的代码

protected void 

onPostExecute(String result) {
            super.onPostExecute(result);
            ListAdapter adapter = new AdapterListView(
                    AndroidJSONParsingActivity.this, contactList, 
                    R.layout.list_item, new String[] { TAG_COMPANY_NAME, TAG_EMAIL,TAG_PERSON_DESIGNATION ,TAG_NUMBER},
                    new int[] { R.id.name, R.id.email,R.id.designation,R.id.phone });

            // if (ImageURL != null && ImageURL != "")
            // imageloader.displayImage(Utils.getEncodedUrl(ImageURL),
            // logo_icon_image, options);
            list.setAdapter(adapter);
            dialog.dismiss();
        };
    }

Answer 1

您可以使用SmsManager或通过调用内置SMS应用程序发送短信

1.使用SmsManager API发送SMS

SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage("", null, "< message body>", null, null);

SmsManager要求你的android mainfeast中的SMS_SEND权限.

2.通过调用内置SMS应用程序发送SMS

Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("sms_body", “"); 
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);

3.发送电子邮件

String to = toEmail.getText().toString();
String subject = emailSubject.getText().toString();
String message = emailBody.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"));

4.在android中调用

Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:0377778888"));
startActivity(callIntent);

您可以从以下链接中找到完整的教程

如何在Android中发送电子邮件

在Android中发送短信

编辑-1

您可以使用以下代码段处理List click事件

lv1.setOnItemClickListener(new OnItemClickListener(){

lv1.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> a, View v, int position, long id) {
                Object o = lv1.getItemAtPosition(position); 
               // write your code here               
            } 
        });

如果每个列表行都有视图来处理事件,那么您可以使用ViewHolder设计模式在适配器getView方法中单独处理.

public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            convertView = layoutInflater.inflate(R.layout.list_row_layout, null);
            holder = new ViewHolder();
            holder.button = (Button) convertView.findViewById(R.id.button);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }    

    if(button!=null){
        button.setOnClickListener(new OnClickListener() {           
            @Override
            public void onClick(View arg0) {

            }
        });

    }   

        return convertView;
    }

static class ViewHolder {
       Button button;
}