我用三个按钮制作了一个应用程序。一个打电话，一个发邮件，第三个发短信。第一次成功后，我注意到电子邮件按钮没有响应。我试图找到一个eroor，但不能。所以我切换了代码，以便电子邮件按钮发送短信，短信按钮发送电子邮件。现在应该发送短信的电子邮件按钮再次没有响应。有任何想法吗？
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class ContactDaveActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
public void buttonhandler(View view)
{
switch(view.getId())
{
case R.id.button1:
{
try {
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:xxxxxxxxxx"));
startActivity(callIntent);
}
catch(ActivityNotFoundException activtyException)
{
Throwable e = null;
Log.e("dialingexample", "Call failed", e);
}
break;
}
case R.id.button2:
{
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
String s = "xyz@gmail.com";
i.putExtra(Intent.EXTRA_EMAIL, new String[]{s });
startActivity(Intent.createChooser(i, "Send mail..."));
break;
}
case R.id.button3:
{
String phoneNumber = "+xxxxxxxx";
Intent smsIntent = new Intent(Intent.ACTION_SENDTO);
smsIntent.addCategory(Intent.CATEGORY_DEFAULT);
smsIntent.setType("vnd.android -dir/mms-sms");
smsIntent.setData(Uri.parse("sms:"+phoneNumber));
startActivity(smsIntent);
break;
}
}
} }