初識安卓小程式(Android簡訊發送器)

標籤：android   安卓   

首先，先建立一個安卓項目(我的版本是4.4.2的)，名字為"簡訊發送器"

然後在res檔案夾下找到layout檔案夾，找到activity_main.xml或fragment_main.xml，在裡面輸入或拖拽按鈕

<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>

最後在src下的java檔案裡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;@Overrideprotected 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);//第一種方法：通過點擊事件來完成dx_send.setOnClickListener(new OnClickListener() {@Overridepublic 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, "電話號碼不可為空",Toast.LENGTH_SHORT).show();return;} else {// 簡訊管理器SmsManager smsManager = SmsManager.getDefault();// 如果超過字數限制，則自動拆分簡訊ArrayList<String> c = smsManager.divideMessage(content);for (String str : c) {smsManager.sendTextMessage(number, null, str, null,null);}}break;}}});}//第二種：通過讓該類實現 OnClickListener介面來重寫方法完成，和上面點擊方法的內容是一樣的@Overridepublic boolean onCreateOptionsMenu(Menu menu) {getMenuInflater().inflate(R.menu.main, menu);return true;}}