Android短信發送器

Xml代碼：

package com.baidu.smssend;

import android.support.v7.app.ActionBarActivity;
import android.telephony.SmsManager;
import android.text.TextUtils;
import android.annotation.SuppressLint;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

@SuppressLint("ShowToast") public class MainActivity extends ActionBarActivity implements OnClickListener {
	//聲明按鈕和兩個editText對象
	Button button1;
	EditText et_num,et_content;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        //獲取各組件Id
        button1 = (Button)findViewById(R.id.button1);
        et_num = (EditText)findViewById(R.id.et_num);
        et_content = (EditText)findViewById(R.id.widget38);
        //為按鈕設置監聽器
        button1.setOnClickListener(this);       
    }
    //響應按鈕單擊事件
	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		case R.id.button1:
			//獲取兩個editText中的內容
			String num = et_num.getText().toString().trim();
			String content = et_content.getText().toString().trim();
			//若號碼或內容為空就發出警告
			if (TextUtils.isEmpty(num)||TextUtils.isEmpty(content))
				Toast.makeText(this, R.string.warning1, 1).show();
			else
			{	//獲取短信管理器，導入包Android.telephony.SmsManager
				SmsManager sm = SmsManager.getDefault();
				//系統發送短信API
				sm.sendTextMessage(num, null, content, null, null);
			}
			break;

		default:
			break;
		}		
	}
}