android-发短信代码实现

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import java.util.List;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class Android_sendMessageActivity extends Activity {

    private EditText et_phone, et_content;
    private Button bt;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        et_phone = (EditText) findViewById(R.id.et_phone);
        et_content = (EditText)findViewById(R.id.et_content);
        bt = (Button)findViewById(R.id.button);
        
        bt.setOnClickListener(new OnClickListener()
        {
            
            @Override
            public void onClick(View v)
            {
                String mobile = et_phone.getText().toString();
                String content = et_content.getText().toString();
                
                SmsManager smsManager = SmsManager.getDefault();
                PendingIntent sentIntent = PendingIntent.getBroadcast(Android_sendMessageActivity.this, 0, new Intent(), 0);
                
                if(content.length() >= 70)
                {
                    //短信字数大于70，自动分条
                    List ms = smsManager.divideMessage(content);
                    
                    for(String str : ms )
                    {
                        //短信发送
                        smsManager.sendTextMessage(mobile, null, str, sentIntent, null);
                    }
                }
                else
                {
                    smsManager.sendTextMessage(mobile, null, content, sentIntent, null);
                }
                
                Toast.makeText(Android_sendMessageActivity.this, "发送成功！", Toast.LENGTH_LONG).show();
            }
        });       
    }
}