bug:android.view.inputmethod.inputconnectionwrapper.finishcomposingtext

重写edittext重写并修改方法：
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
InputConnection inputConnection = super.onCreateInputConnection(outAttrs);
if (inputConnection == null)
{
return null;
}
return new mInputConnecttion(super.onCreateInputConnection(outAttrs),
false);
}