<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.dudon.fakesms">

    <uses-permission android:name="android.permission.READ_SMS" />

    <uses-permission android:name="android.permission.WRITE_SMS" />

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:orientation="horizontal">

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="match_parent"

            android:layout_weight="1"

            android:gravity="center"

            android:text="短信发送者："

            android:textSize="18sp" />

        <EditText

            android:id="@+id/get_phone"

            android:layout_width="wrap_content"

            android:layout_height="match_parent"

            android:layout_weight="7"

            android:inputType="phone" />

    </LinearLayout>

    <ScrollView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_weight="1">

        <EditText

            android:id="@+id/get_message"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:layout_margin="20dp"

            android:hint="短信内容" />

    </ScrollView>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:orientation="horizontal">

        <Button

            android:id="@+id/get_time"

            android:layout_width="wrap_content"

            android:layout_height="match_parent"

            android:layout_weight="1"

            android:text="添加当前时间" />

        <Button

            android:id="@+id/send_message"

            android:layout_width="wrap_content"

            android:layout_height="match_parent"

            android:layout_weight="4"

            android:text="发送短信" />

    </LinearLayout>

</LinearLayout>

public class MainActivity extends AppCompatActivity {

    private int phoneNum;

    private String textSMS;

    private String currentTime;

    private Button sendMessage;

    private Button getTime;

    private EditText getPhone;

    private EditText getMessage;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //注册控件

        sendMessage = (Button) findViewById(R.id.send_message);

        getTime = (Button) findViewById(R.id.get_time);

        getPhone = (EditText) findViewById(R.id.get_phone);

        getMessage = (EditText) findViewById(R.id.get_message);

        //获取当前时间

        getTime.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                textSMS = getMessage.getText().toString();

                SimpleDateFormat formatter = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");

                Date curDate = new Date(System.currentTimeMillis());//获取当前时间

                currentTime = formatter.format(curDate);

                textSMS = textSMS + currentTime;

                getMessage.setText(textSMS);

            }

        });

        //发送短信

        sendMessage.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                if (TextUtils.isEmpty(getPhone.getText().toString())) {

                    Toast.makeText(MainActivity.this, "电话号码未填写", Toast.LENGTH_SHORT).show();

                    return;

                }

                if (TextUtils.isEmpty(getMessage.getText().toString())) {

                    Toast.makeText(MainActivity.this, "短信内容未填写", Toast.LENGTH_SHORT).show();

                    return;

                }

                //获取电话号码和短信内容

                phoneNum = Integer.parseInt(getPhone.getText().toString());

                textSMS = getMessage.getText().toString();

                //开启多线程

                Thread thread = new Thread() {

                    @Override

                    public void run() {

                        ContentResolver resolver = getContentResolver();

                        ContentValues values = new ContentValues();

                        values.put("address", phoneNum);

                        values.put("type", 1);

                        values.put("date", System.currentTimeMillis());

                        values.put("body", textSMS);

                        resolver.insert(Uri.parse("content://sms"), values);

                    }

                };

                thread.start();

                Toast.makeText(MainActivity.this, "短信成功生成", Toast.LENGTH_SHORT).show();

            }

        });

    }

}