阻止即将离任的短信通过contentObserver [英] Block outgoing SMS by contentObserver
问题描述
我要拦截的短信通过 contentObserver 。为此，我希望得到短信的电话号码第一。我该怎么做才能得到多少？这是code，我有，只是计算短信的数量。
包com.SMSObserver4;
进口android.app.Activity;
进口android.database.ContentObserver;
进口android.database.Cursor;
进口android.net.Uri;
进口android.os.Bundle;
进口android.os.Handler;
进口android.provider.Contacts;
进口android.provider.Contacts.People.Phones;
公共类SMSObserver4延伸活动{
/ **第一次创建活动时调用。 * /
私有静态最后弦乐地址= NULL;
@覆盖
公共无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.main）;
setReceiver（）;
}
私人SmsSentCounter smsSentObserver =新SmsSentCounter（新处理器（））;
私人诠释sms_sent_counter = 0;
私人无效setReceiver（）{
this.getContentResolver（）。registerContentObserver（
Uri.parse（内容：//短信），真实，smsSentObserver）;
}
类SmsSentCounter扩展ContentObserver {
公共SmsSentCounter（处理程序处理）{
超（处理）;
// TODO自动生成构造函数存根
}
@覆盖
公共无效的onChange（布尔selfChange）{
// TODO自动生成方法存根
尝试{
的System.out.println（调用的onChange新）;
super.onChange（selfChange）;
光标sms_sent_cursor = SMSObserver4.this.managedQuery（URI
.parse（内容：//短信），空，键入=？，
新的String [] {2}，NULL）;
如果（sms_sent_cursor！= NULL）{
如果（sms_sent_cursor.moveToFirst（））{
sms_sent_counter ++;
的System.out.println（测试+ sms_sent_counter）;
}
}
乌里phoneUri = Uri.withAppendedPath（Contacts.Phones.CONTENT_FILTER_URL，地址）;
如果（phoneUri！= NULL）{
光标phoneCursor = getContentResolver（）查询（phoneUri，新的String [] {Phones._ID，Contacts.Phones.PERSON_ID}，NULL，NULL，NULL）;
如果（phoneCursor.moveToFirst（））{
长人= phoneCursor.getLong（1）; //这是你需要的人的ID
}
}
}赶上（例外五）
{}
}
}
}
我已经做了很多的测试，我发现这是不可能的。这是因为当消息应用程序中插入的短信内容提供商的新纪录，它已经尝试发送短信。所以，即使你发现短信中的内容：//短信/发件箱的URI，它会来不及阻止它。事实上，有没有办法阻止它......这一切都取决于SMS应用，你不能中断。
I want to block SMS by contentObserver. For that I want to get the phone number of the SMS first. What do I do to get the number? This is the code that I have, just counting the number of SMS.
package com.SMSObserver4;
import android.app.Activity;
import android.database.ContentObserver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.provider.Contacts;
import android.provider.Contacts.People.Phones;
public class SMSObserver4 extends Activity {
/** Called when the activity is first created. */
private static final String Address = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setReceiver();
}
private SmsSentCounter smsSentObserver = new SmsSentCounter(new Handler());
private int sms_sent_counter = 0;
private void setReceiver() {
this.getContentResolver().registerContentObserver(
Uri.parse("content://sms"), true, smsSentObserver);
}
class SmsSentCounter extends ContentObserver {
public SmsSentCounter(Handler handler) {
super(handler);
// TODO Auto-generated constructor stub
}
@Override
public void onChange(boolean selfChange) {
// TODO Auto-generated method stub
try{
System.out.println ("Calling onChange new");
super.onChange(selfChange);
Cursor sms_sent_cursor = SMSObserver4.this.managedQuery(Uri
.parse("content://sms"), null, "type=?",
new String[] { "2" }, null);
if (sms_sent_cursor != null) {
if (sms_sent_cursor.moveToFirst()) {
sms_sent_counter++;
System.out.println("test" + sms_sent_counter);
}
}
Uri phoneUri = Uri.withAppendedPath(Contacts.Phones.CONTENT_FILTER_URL, Address);
if (phoneUri != null) {
Cursor phoneCursor = getContentResolver().query(phoneUri, new String[] {Phones._ID, Contacts.Phones.PERSON_ID}, null, null, null);
if (phoneCursor.moveToFirst()) {
long person = phoneCursor.getLong(1); // this is the person ID you need
}
}
}catch(Exception e)
{}
}
}
}
I have done a lot of tests and I found this to be impossible. That's because when the messaging application inserts a new record in the SMS content provider, it is already trying to send the SMS. So, even if you detect the SMS in the content://sms/outbox URI, it will be too late to stop it. In fact, there's no way to stop it... it all depends on the SMS application, which you can't interrupt.
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