首先，先创建一个安卓项目(我的版本是4.4.2的)，名字为"短信发送器"
然后在res文件夹下找到layout文件夹，找到activity_main.xml或fragment_main.xml，在里面输入或拖拽按钮
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.csdn.sms.MainActivity$PlaceholderFragment" >
<TextView
android:id="@+id/pl_input_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="@string/please_input_number"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/input_number"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/pl_input_number"
android:layout_marginTop="22dp"
android:ems="10"
android:inputType="phone" />
<TextView
android:id="@+id/pl_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/input_number"
android:layout_below="@+id/input_number"
android:layout_marginTop="47dp"
android:text="@string/dx_content"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="@+id/content"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/pl_content"
android:layout_below="@+id/pl_content"
android:layout_marginTop="22dp"
android:ems="10"
android:inputType="textMultiLine" >
<requestFocus />
</EditText>
<Button
android:id="@+id/dx_send"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/content"
android:layout_below="@+id/content"
android:layout_marginTop="64dp"
android:text="@string/dx_send" />
</RelativeLayout>
最后在src下的java文件里MainActivity.java
package com.csdn.sms;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.text.TextUtils;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
private Button dx_send;
private EditText dx_content, dx_number;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_main);
dx_content = (EditText) this.findViewById(R.id.content);
dx_number = (EditText) this.findViewById(R.id.input_number);
dx_send = (Button) this.findViewById(R.id.dx_send);
//第一种方法：通过点击事件来完成
dx_send.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.dx_send:
String content = dx_content.getText().toString().trim();
String number = dx_number.getText().toString().trim();
if (TextUtils.isEmpty(content) || TextUtils.isEmpty(number)) {
Toast.makeText(MainActivity.this, "电话号码不能为空",
Toast.LENGTH_SHORT).show();
return;
} else {
// 短信管理器
SmsManager smsManager = SmsManager.getDefault();
// 如果超过字数限制，则自动拆分短信
ArrayList<String> c = smsManager.divideMessage(content);
for (String str : c) {
smsManager.sendTextMessage(number, null, str, null,
null);
}
}
break;
}
}
});
}
//第二种：通过让该类实现 OnClickListener接口来重写方法完成，和上面点击方法的内容是一样的
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}