我想创建自定义 Toast 视图,例如
public class SMSToast extends Activity {
public void showToast(Context context, String message) {
LayoutInflater inflater = getLayoutInflater();
View layout = inflater.inflate(R.layout.toast_sms, (ViewGroup)findViewById(R.id.toast_sms_root));
TextView text = (TextView) layout.findViewById(R.id.toast_sms_text);
text.setText(message);
Toast toast = new Toast(context);
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
toast.setDuration(Toast.LENGTH_LONG);
toast.setView(layout);
toast.show();
}
}
并在 onReceive 方法上的 BroadcastReceiver
SMSToast toast = new SMSToast();
toast.showToast(context,
"Received SMS from: " + msg_from +
" Content: " + msgBody);
但调用代码时不显示任何消息。如果我使用 Toast,则会显示文本。我做错了什么?