关于使用Global变量类和扩展Application的另一个问题。希望它变化到足以不被视为重复。 我已经阅读了这些很棒的问题和答案。
Asynchronous programming best practices
How to use global class variables in android
虽然我理解这些与我当前的问题有什么关系，但由于我是一个新手，我有两个主要问题。
1-我不太确定如何应用这些解决方案，但我会尝试自己解决这个问题。
2-第二个也是最大的问题是，我的代码应该实际上甚至尝试迁移到全局类或帮助程序类。
所以我有3个类，Section1.java，Section2.java，Section3.java，基本上做同样的事情，以相同的方式，使用相同的方法，他们甚至使用几乎精确的xml布局（只有xml的名字）和每个xml中的drawable一起改变）。 唯一的区别是他们接受的正确结果。
关于我的第二个关注点，我的问题是在粘贴的代码下。
以下是来自Section1.java的代码（粗略的，looong spagetthi代码）
Section1.java
public class Section1 extends Activity implements OnClickListener, OnInitListener{
private TextToSpeech myTTS;
ListView lv;
private ProgressDialog dialog;
static final int check = 111;
static final int checka = 222;
static final int checkb = 333;
TextView speak;
private int MY_DATA_CHECK_CODE = 0;
int counter_score;
RatingBar rb_cooking;
MediaPlayer ourSong;
ImageView display,image1,image2,image3;
int gotLetterA, gotLetterB,gotLetterC
int counter_score_a;
int counter_score_b;
int counter_score_c;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.section1);
Intent checkTTSIntent = new Intent();
checkTTSIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
startActivityForResult(checkTTSIntent, MY_DATA_CHECK_CODE);
TextView speak = (TextView) findViewById(R.id.text_to_speech);
////////////////////////////////////
counter_score=0;
counter_score_this=0;
counter_score_b=0;
counter_score_c=0;
image1 = (ImageView) findViewById(R.id.IVimage_1);
image2 = (ImageView) findViewById(R.id.IVimage_2);
image3 = (ImageView) findViewById(R.id.IVimage_3);
initialize();
private void initialize() {
// TODO Auto-generated method stub
lv = (ListView)findViewById(R.id.lvVoiceReturn);
speak = (TextView) findViewById(R.id.text_to_speech);
Button play1 = (Button) findViewById(R.id.play_01);
Button play2 = (Button) findViewById(R.id.play_2);
Button play3 = (Button) findViewById(R.id.play_3);
image1.setOnClickListener(this);
image2.setOnClickListener(this);
image3.setOnClickListener(this);
play1.setOnClickListener(this);
play2.setOnClickListener(this);
play3.setOnClickListener(this);
public void speakClicked(View v) {
speak.setText("testing text");
speak(false);
}
public void speakJbClicked(View v) {
speak(true);
}
private void speak(boolean b) {
// get the text entered
TextView speak = (TextView) findViewById(R.id.texto_correcto);
speak.setText("test, spoken text");
String words = speak.getText().toString();
speakWords(words, b);
}
private void speakWords(String speech, boolean b) {
HashMap<String, String> hashMap = new HashMap<String, String>();
hashMap.put(TextToSpeech.Engine.KEY_FEATURE_NETWORK_SYNTHESIS, "true");
myTTS.speak(speech, TextToSpeech.QUEUE_FLUSH, b ? hashMap : null);
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.IVimage_1){
Intent a = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
a.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
a.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 1);
a.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speech rec prompt.");
startActivityForResult(a, checka);
}else if(v.getId() == R.id.IVimage_2){
Intent b = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
b.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
b.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 1);
b.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speech rec prompt.");
startActivityForResult(b, checkb);
}else if(v.getId() == R.id.IVimage_3){
Intent c = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
c.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
c.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 1);
c.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speech rec prompt.");
startActivityForResult(c, checkc);
}else if(v.getId() == R.id.play_01){
myTTS.setLanguage(Locale.US);
myTTS.setPitch((float) .9);
myTTS.setSpeechRate((float) 0.75);
myTTS.speak("a",TextToSpeech.QUEUE_FLUSH, null);
}else if(v.getId() == R.id.play_2){
myTTS.setLanguage(Locale.US);
myTTS.setPitch((float) .9);
myTTS.setSpeechRate((float) 0.75);
myTTS.speak("b",TextToSpeech.QUEUE_FLUSH, null);
}else if(v.getId() == R.id.play_3){
myTTS.setLanguage(Locale.US);
myTTS.setPitch((float) .9);/
myTTS.setSpeechRate((float) 0.75);
myTTS.speak("c",TextToSpeech.QUEUE_FLUSH, null);
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
if (requestCode == MY_DATA_CHECK_CODE) {
// if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {
// the user has the necessary data - create the TTS
myTTS = new TextToSpeech(this, this);
myTTS.setPitch((float) .9);/////delete
myTTS.setSpeechRate((float) 0.75);///delete maybe
// }
// else {
// //no data - install it now
// Intent installTTSIntent = new Intent();
// installTTSIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
// startActivity(installTTSIntent);
// }
}
if (requestCode == checka && resultCode == RESULT_OK){
ArrayList<String> results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results));
if(results.contains("hey") || results.contains("a") || results.contains("ay") || results.contains("add")|| results.contains("day")||results.contains("A")){
counter_score ++;
image1.setVisibility(View.INVISIBLE);
ourSong = MediaPlayer.create(Section1.this, R.raw.rightsound2);
ourSong.start();
AlertDialog dialogBuilder = new AlertDialog.Builder(this).create();
dialogBuilder.setTitle("Great");
dialogBuilder.setMessage("some msg");
dialogBuilder.setIcon(R.drawable.ic_mark);
dialogBuilder.setButton("Continue", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialogBuilder.show();
Thread timer = new Thread(){
public void run(){
try{
sleep(2500);
}catch (InterruptedException e){
e.printStackTrace();
} finally {
if(counter_score == 3){
Bundle basket = new Bundle();
basket.putInt("key", counter_score);
Intent nextAct = new Intent(Section1.this, Result_Section1.class);
nextAct.putExtras(basket);
startActivity(nextAct);
finish();
}
}
}
};
timer.start();
}else{
lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results));
counter_score +=0;
ourSong = MediaPlayer.create(Section1.this, R.raw.wrongsound);
ourSong.start();
AlertDialog dialogBuilder = new AlertDialog.Builder(this).create();
dialogBuilder.setTitle("Oops");
dialogBuilder.setMessage("Wrong msg");
dialogBuilder.setIcon(R.drawable.ic_wrong);
dialogBuilder.setButton("Try again", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialogBuilder.show();
Thread timer = new Thread(){
public void run(){
try{
sleep(4000);
}catch (InterruptedException e){
e.printStackTrace();
} finally {
}
}
};
timer.start();
}
}
if (requestCode == checkb && resultCode == RESULT_OK){
ArrayList<String> results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results));
if(results.contains("b") || results.contains("be") || results.contains("boob")|| results.contains("dude")|| results.contains("B")){
counter_score ++;
image2.setVisibility(View.INVISIBLE);
ourSong = MediaPlayer.create(Section1.this, R.raw.rightsound2);
ourSong.start();
AlertDialog dialogBuilder = new AlertDialog.Builder(this).create();
dialogBuilder.setTitle("Great");
dialogBuilder.setMessage("some msg");
dialogBuilder.setIcon(R.drawable.ic_mark);
dialogBuilder.setButton("Continue", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialogBuilder.show();
Thread timer = new Thread(){
public void run(){
try{
sleep(2500);
}catch (InterruptedException e){
e.printStackTrace();
} finally {
if(counter_score == 3){
Bundle basket = new Bundle();
basket.putInt("key", counter_score);
Intent nextAct = new Intent(Section1.this, Result_Section1.class);
nextAct.putExtras(basket);
startActivity(nextAct);
finish();
}
}
}
};
timer.start();
}else{
lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results));
counter_score +=0;
ourSong = MediaPlayer.create(Section1.this, R.raw.wrongsound);
ourSong.start();
AlertDialog dialogBuilder = new AlertDialog.Builder(this).create();
dialogBuilder.setTitle("Oops");
dialogBuilder.setMessage("Wrong msg");
dialogBuilder.setIcon(R.drawable.ic_wrong);
dialogBuilder.setButton("Try again", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialogBuilder.show();
Thread timer = new Thread(){
public void run(){
try{
sleep(4000);
}catch (InterruptedException e){
e.printStackTrace();
} finally {
}
}
};
timer.start();
}
}
if (requestCode == checkc && resultCode == RESULT_OK){
ArrayList<String> results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results));
if(results.contains("c") || results.contains("see") || results.contains("sea")|| results.contains("C")){
counter_score ++;
image3.setVisibility(View.INVISIBLE);
ourSong = MediaPlayer.create(Section1.this, R.raw.rightsound2);
ourSong.start();
AlertDialog dialogBuilder = new AlertDialog.Builder(this).create();
dialogBuilder.setTitle("Great");
dialogBuilder.setMessage("some msg");
dialogBuilder.setIcon(R.drawable.ic_mark);
dialogBuilder.setButton("Continue", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialogBuilder.show();
Thread timer = new Thread(){
public void run(){
try{
sleep(2500);
}catch (InterruptedException e){
e.printStackTrace();
} finally {
if(counter_score == 3){
Bundle basket = new Bundle();
basket.putInt("key", counter_score);
Intent nextAct = new Intent(Section1.this, Result_Section1.class);
nextAct.putExtras(basket);
startActivity(nextAct);
finish();
}
}
}
};
timer.start();
}else{
lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results));
counter_score +=0;
ourSong = MediaPlayer.create(Section1.this, R.raw.wrongsound);
ourSong.start();
AlertDialog dialogBuilder = new AlertDialog.Builder(this).create();
dialogBuilder.setTitle("Oops");
dialogBuilder.setMessage("Wrong msg");
dialogBuilder.setIcon(R.drawable.ic_wrong);
dialogBuilder.setButton("Try again", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialogBuilder.show();
Thread timer = new Thread(){
public void run(){
try{
sleep(4000);
}catch (InterruptedException e){
e.printStackTrace();
} finally {
}
}
};
timer.start();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
@Override
public void onInit(int status) {
// check for successful instantiation
// if (initStatus == TextToSpeech.SUCCESS) {
// if(myTTS.isLanguageAvailable(Locale.US)==TextToSpeech.LANG_AVAILABLE)
///myTTS.setLanguage(Locale.US);
// }
// else if (initStatus == TextToSpeech.ERROR) {
// Toast.makeText(this, "Sorry! Text To Speech failed...",
// Toast.LENGTH_LONG).show();
// }
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
if (myTTS !=null){
myTTS.stop();
myTTS.shutdown();
}
super.onDestroy();
}
public void onBackPressed() {
finish();
}
}
我会发布Section2.java，Section3.java，但代码中只有4件事情会发生变化。
1-xml布局，它本身就是一个精确的副本。
setContentView（R.layout.section1）; //相应地更改为setContentView（R.layout.section2），setContentView（R.layout.section2）
2 - 接受的结果作为所说内容的正确答案。
if（results.contains（“hey”）|| results.contains（“a”）|| results.contains（“ay”）|| results.contains（“add”）|| results.contains（“ day“）|| results.contains（”A“））{//无论该类的正确答案是什么
3 - 进入下一个活动需要正确的数量问题
if（counter_score == 3）{
4 - 发送我的包的活动
Intent nextAct = new Intent（Section1.this，Result_Section1.class）;
我知道我可以为变量构建一个Global类。
最后我的问题。
当我阅读here时，我无法构建一个全局类来表示AlertDialog，因为如果我理解正确，对话框需要一个Context并且是View类的一部分。
Q1.我可以建立一个public class MyAlertDialogs extends View {来保存我的对话框吗？
当我阅读here时，我知道我可以构建一个Global类来处理OnclickListener。
问题2.我可以在全局课程中拥有SpeechRecognizer Intent或TextToSpeech Intent吗？
答案 0 :(得分：0)
回答Q1。在创建对象时，将视图类的上下文传递给对话框类。使用像
这样的构造函数public DialogClass {
final Context mContext;
DialogClass(Context context) {
mContext = context;
}
}
并在从视图类传递上下文时创建它的对象。