Java 无法在recyclerVIew中与TTS同步显示imageView
当TTS（文本到语音）逐个播放所有可用列表项时，如何在recyclerView中显示/隐藏imageView 活动方法 -此方法称为r with Loop（不工作，没有bug，只是没有给出预期的输出）Java 无法在recyclerVIew中与TTS同步显示imageView,java,android,android-recyclerview,text-to-speech,Java,Android,Android Recyclerview,Text To Speech,当TTS（文本到语音）逐个播放所有可用列表项时，如何在recyclerView中显示/隐藏imageView 活动方法 -此方法称为r with Loop（不工作，没有bug，只是没有给出预期的输出） int position=0; public void convertTextToSpeech() { Multiples multiples1=items.get(position); for (Multiples item : items) {
int position=0;
public void convertTextToSpeech() {
Multiples multiples1=items.get(position);
for (Multiples item : items) {
text = item.first + " " + item.getSecond() + " Za " + item.getResult() + ".";
tts.speak(text, TextToSpeech.QUEUE_ADD, null);
boolean speakingEnd = tts.isSpeaking();
if (speakingEnd) {
Toast.makeText(getApplicationContext(), "Speaking...."+position, Toast.LENGTH_SHORT).show();
multiples1.setImage_show(true);
mAdapter.notifyItemChanged(position);
} else {
Toast.makeText(getApplicationContext(), "Done...."+position, Toast.LENGTH_SHORT).show();
}
position++;
}
}
更新的试用代码 DisplayActivityResultAdapter.java
......
.......
int position = 0;
public void convertTextToSpeech() {
Multiples multiples1=items.get(position);
for (Multiples item : items) {
text = item.first + " " + item.getSecond() + " Za " + item.getResult() + ".";
tts.speak(text, TextToSpeech.QUEUE_ADD, null);
boolean speakingEnd = tts.isSpeaking();
// Toast.makeText(getApplicationContext(), "Speaking...."+position, Toast.LENGTH_SHORT).show();
// multiples1.setImage_show(true);
// mAdapter.notifyItemChanged(position);
// Log.i("values","------------------------------------------Row value-"+item.getFirst()+" X "+item.getSecond()+", Position="+position);
//------------------------
MyAdapter m= (MyAdapter) mAdapter;
m.updateItem(item,position);
position++;
}
}
}
.....
.....
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
// - get element from your dataset at this position
// - replace the contents of the view with that element
if (holder instanceof MyAdapter.MyViewHolder) {
final MyAdapter.MyViewHolder view = (MyAdapter.MyViewHolder) holder;
Multiples p = items.get(position);
view.name.setText(p.first + " X " + p.getSecond() + "= "+p.getResult());
if(position>0) {
if (p.image_show) {
view.image1.setVisibility(View.VISIBLE);
view.image.setVisibility(View.INVISIBLE);
} else {
view.image1.setVisibility(View.INVISIBLE);
view.image.setVisibility(View.VISIBLE);
}
}
}
}
public void updateItem(Multiples newItem, int pos) {
Log.i("values","-----In updateItem Log----Row value-"+newItem.getFirst()+" X "+newItem.getSecond()+", Position="+pos);
items.set(pos, newItem); //update passed value in your adapter's data structure
Log.e("msg","-----items.get(pos)------------->"+items.get(pos).getFirst()+" X " +items.get(pos).getSecond());
notifyItemChanged(pos,newItem);
}
// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
return items.size();
}
}
......
.......
int position = 0;
public void convertTextToSpeech() {
Multiples multiples1=items.get(position);
for (Multiples item : items) {
text = item.first + " " + item.getSecond() + " Za " + item.getResult() + ".";
tts.speak(text, TextToSpeech.QUEUE_ADD, null);
boolean speakingEnd = tts.isSpeaking();
// Toast.makeText(getApplicationContext(), "Speaking...."+position, Toast.LENGTH_SHORT).show();
// multiples1.setImage_show(true);
// mAdapter.notifyItemChanged(position);
// Log.i("values","------------------------------------------Row value-"+item.getFirst()+" X "+item.getSecond()+", Position="+position);
//------------------------
MyAdapter m= (MyAdapter) mAdapter;
m.updateItem(item,position);
position++;
}
}
}
.....
.....
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
// - get element from your dataset at this position
// - replace the contents of the view with that element
if (holder instanceof MyAdapter.MyViewHolder) {
final MyAdapter.MyViewHolder view = (MyAdapter.MyViewHolder) holder;
Multiples p = items.get(position);
view.name.setText(p.first + " X " + p.getSecond() + "= "+p.getResult());
if(position>0) {
if (p.image_show) {
view.image1.setVisibility(View.VISIBLE);
view.image.setVisibility(View.INVISIBLE);
} else {
view.image1.setVisibility(View.INVISIBLE);
view.image.setVisibility(View.VISIBLE);
}
}
}
}
public void updateItem(Multiples newItem, int pos) {
Log.i("values","-----In updateItem Log----Row value-"+newItem.getFirst()+" X "+newItem.getSecond()+", Position="+pos);
items.set(pos, newItem); //update passed value in your adapter's data structure
Log.e("msg","-----items.get(pos)------------->"+items.get(pos).getFirst()+" X " +items.get(pos).getSecond());
notifyItemChanged(pos,newItem);
}
// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
return items.size();
}
}
将下面的代码片段放入
OnBindViewHolder中的适配器中
text = item.first + " " + item.getSecond() + " Za " + item.getResult() + ".";
tts.speak(text, TextToSpeech.QUEUE_ADD, null);
boolean speakingEnd = tts.isSpeaking();
if(speakingEnd){
Toast.makeText(getApplicationContext(), "Speaking...."+position, Toast.LENGTH_SHORT).show();
multiples1.setImage_show(true);
mAdapter.notifyItemChanged(position);
} else {
Toast.makeText(getApplicationContext(), "Done...."+position, Toast.LENGTH_SHORT).show();
}
感谢您的帮助。您的主要失败是缺少TTS的侦听器。没有它，您就不知道何时应该更新您的RecyclerView
。
侦听器可以如下所示：
class MyListener extends UtteranceProgressListener {
@Override
public void onStart(String utteranceId) {
int currentIndex = Integer.parseInt(utteranceId);
mMainAdapter.setCurrentPosition(currentIndex);
handler.post(new Runnable() {
@Override
public void run() {
mMainAdapter.notifyDataSetChanged();
}
});
}
@Override
public void onDone(String utteranceId) {
int currentIndex = Integer.parseInt(utteranceId);
mMainAdapter.setCurrentPosition(-1);
handler.post(new Runnable() {
@Override
public void run() {
mMainAdapter.notifyDataSetChanged();
}
});
if (currentIndex < data.size() - 1) {
playSound(currentIndex + 1);
}
}
@Override
public void onError(String utteranceId) {
}
}
类MyListener扩展了OuttanceProgressListener{
@凌驾
public void onStart（字符串outtanceid）{
int currentIndex=Integer.parseInt（outtanceId）；
mMainAdapter.setCurrentPosition（currentIndex）；
handler.post（新的Runnable（）{
@凌驾
公开募捐{
mMainAdapter.notifyDataSetChanged（）；
}
});
}
@凌驾
公共无效onDone（字符串OUTTANCEID）{
int currentIndex=Integer.parseInt（outtanceId）；
mMainAdapter.setCurrentPosition（-1）；
handler.post（新的Runnable（）{
@凌驾
公开募捐{
mMainAdapter.notifyDataSetChanged（）；
}
});
if（currentIndex
我已经创建了一个测试项目来展示它是如何实现的。您可以看到它是如何工作的。这是我的github存储库。请检查此项。在您的代码中，您被错过了UtteranceProgressListener
。
您必须添加outtanceprogresslistener
，它将为您提供语音完成侦听器事件。此外，您还需要outtanceid，它将被传递到tts.speak（）
，以帮助您在需要时识别语音。
以一个变量为例
String utterId = "";
然后在调用convertexttospeech
之前，在您的TextToSpeech
onInit
中，将此侦听器注册到您的tts
...
else{
tts.setOnUtteranceProgressListener(new UtteranceProgressListener() {
@Override
public void onStart(String utteranceId) {
}
@Override
public void onDone(String utteranceId) {
convertTextToSpeech(position);
}
@Override
public void onError(String utteranceId) {
}
});
convertTextToSpeech(0);
}
最初，0被传递给convertexttospeech
，因为这是第一次调用。这里我对convertexttospeech
做了一些更改。在这里，我删除了您之前使用的循环，它将是一个递归函数
public void convertTextToSpeech(int pos) {
if (pos >= items.size()) return;
position = pos;
final Multiples multiples = items.get(position);
text = multiples.first + " " + multiples.getSecond() + " Za " + multiples.getResult() + ".";
utterId = (new Random().nextInt() % 9999999) + ""; // "" is String force
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
Bundle params = new Bundle();
params.putString(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, utterId);
tts.speak(text, TextToSpeech.QUEUE_FLUSH, params, utterId);
} else {
HashMap<String, String> params = new HashMap<>();
params.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, utterId);
tts.speak(text, TextToSpeech.QUEUE_FLUSH, params);
}
runOnUiThread(new Runnable() {
@Override
public void run() {
MyAdapter m = (MyAdapter) mAdapter;
multiples.setImage_show(true);
m.updateItem(multiples, position);
position++;
}
});
}
检查上传的gif。请随时更新
如果您需要任何帮助，可以询问。谢谢您的回收器适配器在哪里？通常，您的tts代码应该调用您的适配器来切换回收器项目的图像视图中的图像，并调用notifyItemChanged。@MDNaseemAshraf问题中提供了所有信息。请尝试发布答案或提供提示您是否使用git？您可以ovide链接到您的git存储库？@Monkey显示为您缺少图片适配器：[！[在此处输入图像描述][1][1]
@StackDanny该图像已过期。因此我将其删除。相反，我已在上述问题中添加了适配器代码。在adpter的onBindViewHolder方法中不允许写入tts！