关于字符串定界符的使用规则

android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
出现异常的原因:
在observer中去调用load()方法,并且load()方法又去操作界面上的控件.

private ContentObserver observer = new ContentObserver(null) {
public void onChange(boolean selfChange, android.net.Uri uri) {
Cursor cursor = context.getContentResolver().query(DataProvider.getUri(), null,
SimpleDataColumns.MODULE + "= ? ", new String[]{Constants.PROGRAM}, null);
Logger.v(TAG, "@onChange. remind.cursor.count >> " + cursor.getColumnCount()
+ ", remind.list.size >> " + tvRemindList.size());
if(cursor.getColumnCount() != tvRemindList.size()) {
load();
}
}
};

改成在Handler中调用load()方法就没有这个异常.