Android 窃听用户发出的短信

窃听用户发出的短信

用户使用系统自带的短信程序发送短信，程序会通过ContentProvider把短信保存进数据库，并且发出一个数据变化通知，使用ContentObserver对数据变化进行监听，在用户发送短信时，就会被ContentObserver窃听到短信：
注册监听：

getContentResolver().registerContentObserver(Uri.parse("content://sms"),  true, new SmsObserver(new Handler()));

监听类：

private final class SmsObserver extends ContentObserver {
	public SmsObserver(Handler handler) {
		super(handler);
	}

	public void onChange(boolean selfChange) {// 查询发送箱中的短信(处于正在发送状态的短信放在发送箱)
		Cursor cursor = getContentResolver().query(
				Uri.parse("content://sms/outbox"), null, null, null, null);
		while (cursor.moveToNext()) {
			StringBuilder sb = new StringBuilder();
			sb.append("_id=").append(
					cursor.getInt(cursor.getColumnIndex("_id")));
			sb.append(",address=").append(
					cursor.getString(cursor.getColumnIndex("address")));
			sb.append(";body=").append(
					cursor.getString(cursor.getColumnIndex("body")));
			sb.append(";time=").append(
					cursor.getLong(cursor.getColumnIndex("date")));
			Log.i("ReceiveSendSMS", sb.toString());
		}
	}
}

完整代码示例：

package com.example.smslistener;

import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.database.ContentObserver;
import android.database.Cursor;
import android.view.Menu;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		Uri uri = Uri.parse("content://sms/");
		getContentResolver().registerContentObserver(uri, true,
				new SmsObeserver(new Handler()));
	}

	public class SmsObeserver extends ContentObserver {

		public SmsObeserver(Handler handler) {
			super(handler);
		}

		@Override
		public void onChange(boolean selfChange) {
			System.out.println("有短信了");
			Cursor cursor = getContentResolver().query(
					Uri.parse("content://sms/outbox"), null, null, null, null);
			while (cursor.moveToNext()) {
				StringBuilder sb = new StringBuilder();
				sb.append("_id=").append(
						cursor.getInt(cursor.getColumnIndex("_id")));
				sb.append(",address=").append(
						cursor.getString(cursor.getColumnIndex("address")));
				sb.append(",body=").append(
						cursor.getString(cursor.getColumnIndex("body")));
				sb.append(",time=").append(
						cursor.getLong(cursor.getColumnIndex("date")));
				System.out.println(sb.toString());
			}
			super.onChange(selfChange);
		}
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}
}