无法解析postdelayed方法 [英] Cannot resolve method postdelayed

问题描述

好吧，这是我的代码：

final TextToSpeech ttv = new TextToSpeech(MainActivity.this, new TextToSpeech.OnInitListener() {


        public void onInit(int status) {
            ttv.setLanguage(Locale.US);
            Log.e("Init", "Success");
            ttvInit = true;
            // wait a little for the initialization to complete
            Handler h = new Handler();
            h.postDelayed(new Runnable()
            {
            public void run() {
                ttv.speak(textSpeech.getText().toString(),TextToSpeech.QUEUE_FLUSH,null);
            }
        }, 400);}

    else {
        System.out.println("Something went wrong.");
    }
        }

但我收到错误无法解析方法'postDelayed（java.lung.Runnable，int）'

but i'm getting an error "Cannot resolve method 'postDelayed(java.lung.Runnable, int)'

编辑：
它现在告诉我它未被使用：
http://www.igreklik.com/slike/viewer。 php？file = 75221279105193055086.png& file_imgur = HPjDlfa.png

推荐答案

检查导入：

import android.os.Handler;

并将您的代码更改为此（您的其他声明不正确）：

and change your code to this (your "else" statement is incorrect):

final TextToSpeech ttv = new TextToSpeech(MainActivity.this, new TextToSpeech.OnInitListener() {

    public void onInit(int status) {
        ttv.setLanguage(Locale.US);
        Log.e("Init", "Success");
        ttvInit = true;
        // wait a little for the initialization to complete
        Handler h = new Handler();
        h.postDelayed(new Runnable()
            {
            public void run() {
                ttv.speak(textSpeech.getText().toString(),TextToSpeech.QUEUE_FLUSH,null);
            }
        }, 400);
    }
 });

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