Question

我正在制作一个短信应用程序，问题是，当新的短信收到活动不刷新列表视图时，我尝试了数据集，但没有发生任何事情。我把代码放在了onresume方法上但是当新的短信收到时，我挂起我的应用程序。当我把代码放入asynctask时，它会给出错误。

void update() {
    getAll.clear();
    Uri SMS_INBOX = Uri.parse("content://mms-sms/conversations?simple=true");
    Cursor c = getContentResolver().query(SMS_INBOX, null, null, null, "date DESC");

    startManagingCursor(c);
    count = new String[c.getCount()];
    snippet = new String[c.getCount()];
    thread_id = new String[c.getCount()];

    String[] num=new String[c.getCount()];
    date=new String[c.getCount()];
    address=new String[c.getCount()];
    c.moveToFirst();
    for (int i = 0; i < c.getCount()-1; i++) {
        count[i] = c.getString(c.getColumnIndexOrThrow("message_count"))
                        .toString();

        thread_id[i] = c.getString(c.getColumnIndexOrThrow("_id"))
                        .toString();
        snippet[i] = c.getString(c.getColumnIndexOrThrow("snippet"));
        date[i]=c.getString(c.getColumnIndexOrThrow("date"));   
        Cursor cur = getContentResolver().query(Uri.parse("content://sms/"), null, "thread_id = " + thread_id[i], null, null);
        cur.moveToFirst();
        startManagingCursor(cur);
        num[i] = getContactName(this,cur.getString(cur.getColumnIndexOrThrow("address")).toString());
        address[i] = cur.getString(cur.getColumnIndexOrThrow("address")).toString();
        getAll.add(count[i]+","+num[i]+","+snippet[i]);
        Log.d("help",num[i]);

        c.moveToNext();           
    }

    adapter = new HomeAdapter(this, R.layout.sms, getAll,date);
    adapter.notifyDataSetChanged();
    list.setAdapter(adapter);  
}

2.In OnResume

@Override
protected void onResume() {
    // TODO Auto-generated method stub
    super.onResume();
    update();
}

Answer 1

这不是阅读新短信的正确方法

请参阅以下示例

http://androidexample.com/Incomming_SMS_Broadcast_Receiver_-_Android_Example/index.php?view=article_discription&aid=62&aaid=87

希望它会帮助你

Answer 2

试试这个mMyListView.invalidate();或mMyListView.invalidateViews();

如果不起作用，请参阅此

((BaseAdapter) mMyListView.getAdapter()).notifyDataSetChanged();

阅读刷新ListView link 。

Answer 3

将它包装在一个线程中，这样的事情应该有效：然而，其他人说有更好的方法可以让你看看他们的链接，看看他们的方式是否更好...

void update() {

    Thread thread = new Thread() {
        @Override
        public void run() {
            getAll.clear();
            Uri SMS_INBOX = Uri.parse("content://mms-sms/conversations?simple=true");
            Cursor c = getContentResolver().query(SMS_INBOX, null, null, null, "date DESC");

            startManagingCursor(c);
            count = new String[c.getCount()];
            snippet = new String[c.getCount()];
            thread_id = new String[c.getCount()];

            String[] num = new String[c.getCount()];
            date = new String[c.getCount()];
            address = new String[c.getCount()];
            c.moveToFirst();

            for (int i = 0; i < c.getCount() - 1; i++) {
                if (i ==35){
                    i = 35;
                }
                count[i] = c.getString(c.getColumnIndexOrThrow("message_count")).toString();

                thread_id[i] = c.getString(c.getColumnIndexOrThrow("_id")).toString();
                snippet[i] = c.getString(c.getColumnIndexOrThrow("snippet"));
                date[i] = c.getString(c.getColumnIndexOrThrow("date"));
                Cursor cur = getContentResolver().query(Uri.parse("content://sms/"), null, "thread_id = " + thread_id[i], null, null);
                cur.moveToFirst();
                startManagingCursor(cur);
                try {
                    num[i] = getContactName(Home.this, cur.getString(cur.getColumnIndexOrThrow("address")).toString());
                } catch (Exception e) {
                    e.printStackTrace();
                }
                try {
                    address[i] = cur.getString(cur.getColumnIndexOrThrow("address")).toString();
                } catch (Exception e) {
                    e.printStackTrace();
                }
                getAll.add(count[i] + "," + num[i] + "," + snippet[i]);
                //Log.d("help", num[i]);

                c.moveToNext();

            }

            Home.this.runOnUiThread(new Runnable() {
                public void run() {
                    adapter = new HomeAdapter(Home.this, R.layout.sms, getAll, date);

                    adapter.notifyDataSetChanged();
                    list.setAdapter(adapter);
                }
            });

        }
    };
    thread.start();

}

Android OnResume挂起活动

3 个答案: