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nginx/1.5.13I am creating a quiz app. After 10 to 12 questions, Medvoice is not comming after correct or wrong question.
I am getting this error MediaPlayer (-19, 0) and From settings cache, name=sound_effects enabled, value=0. Please guide me to overcome this error. Thanks
I am using this code. Sound is playable for 8 to 10 times, then voice disappears. If we wait for some second and click button again after some time, sounds starts playing. Also it is crashing after some time.
package com.kids_
import java.util.A
import java.util.C
import java.util.R
import android.media.MediaP
import android.os.B
import android.os.CountDownT
import android.os.H
import android.app.A
import android.app.AlertD
import android.app.D
import android.content.DialogI
import android.content.I
import android.graphics.C
import android.graphics.drawable.ColorD
import android.view.M
import android.view.V
import android.view.W
import android.widget.B
import android.widget.ImageV
import android.widget.RadioB
import android.widget.RadioG
import android.widget.RadioGroup.OnCheckedChangeL
import android.widget.TextV
import android.widget.T
public class HardAddition extends Activity {
RadioButton answer1,answer2, answer3;
TextView Num1,Num2,Counter, Answer,check_answer1;
int Result, z, Score=00;
final Random rand= new Random();
CountDownTimer timer1;
Button Submit,N
ImageView I
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hard__addition);
// Getting RadioButtons, TextViews
options=(RadioGroup)findViewById(R.id.Hard_Add_RdGrp);
answer1=(RadioButton)findViewById(R.id.Hard_Add_answer1);
answer2=(RadioButton)findViewById(R.id.Hard_Add_Answer2);
answer3=(RadioButton)findViewById(R.id.Hard_Add_Answer3);
Num1=(TextView)findViewById(R.id.Hard_Add_Num1_ID);
Num2=(TextView)findViewById(R.id.Hard_Add_Num2_ID);
Counter=(TextView)findViewById(R.id.Hard_Additon_Counter);
Answer=(TextView)findViewById(R.id.Hard_Additon_Answer);
check_answer1=(TextView)findViewById(R.id.Hard_Addition_checked_answer);
Image=(ImageView)findViewById(R.id.Hard_Addition_ImageView);
//Setting Timer
timer1 = new CountDownTimer(1) {
public void onTick(long millisUntilFinished) {
Counter.setText(""
+ formatTime(millisUntilFinished));
private String formatTime(long millis) {
// TODO Auto-generated method stub
String output = "00";
long seconds = millis / 1000;
//long minutes = seconds / 60;
seconds = seconds % 60;
//minutes = minutes % 60;
String secondsD = String.valueOf(seconds);
//String minutesD = String.valueOf(minutes);
if (seconds & 10)
secondsD = "0" +
//if (minutes & 10)
minutesD = "0" +
output =secondsD;
public void onFinish() {
Counter.setText("");
//Counter_Dialog();
CustomDialogClass cdd=new CustomDialogClass(HardAddition.this);
cdd.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
cdd.show();
//Calling Method to generate Numbers Randomly
getRandom();
// Starting Timer
timer1.start();
options.setOnCheckedChangeListener(new OnCheckedChangeListener() {
public void onCheckedChanged(RadioGroup arg0, int arg1) {
// TODO Auto-generated method stub
check_answer();
// Submit Button to check the answer
Submit=(Button)findViewById(R.id.Hrd_AddOK_Btn_ID);;
Submit.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
MediaPlayer mp=MediaPlayer.create(HardAddition.this, R.raw.tick);
mp.start();
timer1.cancel();
Submit.setVisibility(View.INVISIBLE);
//Calling Method which will check the answer defined below
isCorrect();
//Method to Generate Numbers Randomly
public void getRandom()
int FirstNum= rand.nextInt(()+500;
Num1.setText(String.valueOf(FirstNum));
int SecondNum= rand.nextInt(()+1)+1000;
Num2.setText(String.valueOf(SecondNum));
int x= Integer.parseInt(Num1.getText().toString());
int y= Integer.parseInt(Num2.getText().toString());
Result=x+y;
answer2.setText(String.valueOf(Result));
int option_value1;
option_value1 =rand.nextInt(()+500;
while(option_value1==Result);
answer1.setText(String.valueOf(option_value1));
int option_value2;
option_value2 =rand.nextInt(()+1)+1500;
while(option_value2==Result);
answer3.setText(String.valueOf(option_value2));
int a=Integer.parseInt(answer1.getText().toString());
int b=Integer.parseInt(answer2.getText().toString());
int c=Integer.parseInt(answer3.getText().toString());
Integer[] options = {a, b , c
Collections.shuffle(Arrays.asList(options));
// assign the value choice
a = options[0];
b = options[1];
c = options[2];
answer1.setText(String.valueOf(a));
answer2.setText(String.valueOf(b));
answer3.setText(String.valueOf(c));
// Method to check the answer
public void isCorrect()
if(answer1.isChecked()==false && answer2.isChecked()==false && answer3.isChecked()==false)
Toast.makeText(getApplicationContext(), "Please Select One Option", Toast.LENGTH_SHORT).show();
Submit.setVisibility(View.VISIBLE);
else if(answer1.isChecked())
Image.setVisibility(View.VISIBLE);
z=Integer.parseInt(answer1.getText().toString());
if(z==Result)
//Displaying Image
Image.setBackgroundResource(R.drawable.a);
//Playing Sound
mp=MediaPlayer.create(HardAddition.this, R.raw.wow);
mp.start();
//Increamenting Score
increamentscore();
//Generating New Question
final Handler handler=new Handler();
handler.postDelayed(new Runnable() {
public void run() {
// TODO Auto-generated method stub
Questions();
answer1.setChecked(false);
answer2.setChecked(false);
answer3.setChecked(false);
mp.stop();
mp.release();
//Displaying Image
Image.setBackgroundResource(R.drawable.r);
//Playing Sound
mp=MediaPlayer.create(HardAddition.this, R.raw.okay);
mp.start();
final Handler handler=new Handler();
handler.postDelayed(new Runnable() {
public void run() {
// TODO Auto-generated method stub
Questions();
answer1.setChecked(false);
answer2.setChecked(false);
answer3.setChecked(false);
mp.stop();
mp.release();
else if(answer2.isChecked())
Image.setVisibility(View.VISIBLE);
z=Integer.parseInt(answer2.getText().toString());
if(z==Result)
//Displaying Image
Image.setBackgroundResource(R.drawable.b);
//Playing Sound
mp=MediaPlayer.create(HardAddition.this, R.raw.wow);
mp.start();
Increamenting Score
increamentscore();
final Handler handler=new Handler();
handler.postDelayed(new Runnable() {
public void run() {
// TODO Auto-generated method stub
Questions();
answer1.setChecked(false);
answer2.setChecked(false);
answer3.setChecked(false);
mp.stop();
mp.release();
//Displaying Image
Image.setBackgroundResource(R.drawable.r);
//Playing Sound
mp=MediaPlayer.create(HardAddition.this, R.raw.okay);
mp.start();
final Handler handler=new Handler();
handler.postDelayed(new Runnable() {
public void run() {
// TODO Auto-generated method stub
Questions();
answer1.setChecked(false);
answer2.setChecked(false);
answer3.setChecked(false);
mp.stop();
mp.release();
else if(answer3.isChecked())
Image.setVisibility(View.VISIBLE);
z=Integer.parseInt(answer3.getText().toString());
if(z==Result)
//Displaying Image
Image.setBackgroundResource(R.drawable.a);
// Playing Sound
mp=MediaPlayer.create(HardAddition.this, R.raw.wow);
mp.start();
increamentscore();
final Handler handler=new Handler();
handler.postDelayed(new Runnable() {
public void run() {
// TODO Auto-generated method stub
Questions();
answer1.setChecked(false);
answer2.setChecked(false);
answer3.setChecked(false);
mp.stop();
mp.release();
//Displaying Image
Image.setBackgroundResource(R.drawable.r);
//Playing Sound
mp=MediaPlayer.create(HardAddition.this, R.raw.okay);
mp.start();
final Handler handler=new Handler();
handler.postDelayed(new Runnable() {
public void run() {
// TODO Auto-generated method stub
Questions();
answer1.setChecked(false);
answer2.setChecked(false);
answer3.setChecked(false);
mp.stop();
mp.release();
public void Counter_Dialog() {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Time is Up !!!")
.setMessage(
"Your Time is Up, Press Next to Move to the Next Question")
// .setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton("Next",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
mp=MediaPlayer.create(getApplicationContext(), R.raw.tick);
mp.start();
Questions();
//timer1.start();
answer1.setChecked(false);
answer2.setChecked(false);
answer3.setChecked(false);
// .setNegativeButton("No", null)
// Increamenting Score
public int increamentscore() {
if(Score&99)
Score = Score + 1;
Answer.setText(String.valueOf(Score));
// Generating New Question
public void Questions() {
Image.setVisibility(View.GONE);
getRandom();
timer1.start();
options.clearCheck();
check_answer1.setText(String.valueOf(""));
Submit.setVisibility(View.VISIBLE);
// Checking the value of Checked Answer by the User
public void check_answer()
switch(options.getCheckedRadioButtonId())
case R.id.Hard_Add_answer1:
y=Integer.parseInt(answer1.getText().toString());
check_answer1.setText(String.valueOf(y));
case R.id.Hard_Add_Answer2:
y=Integer.parseInt(answer2.getText().toString());
check_answer1.setText(String.valueOf(y));
case R.id.Hard_Add_Answer3:
y=Integer.parseInt(answer3.getText().toString());
check_answer1.setText(String.valueOf(y));
// Dialog which will display on When Time is UP
public class CustomDialogClass extends Dialog implementsandroid.view.View.OnClickListener
public CustomDialogClass(Activity a) {
// TODO Auto-generated constructor stub
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.dialog_box );
Next = (Button) findViewById(R.id.dialog_Next);
Next.setOnClickListener(this);
public void onClick(View v) {
switch (v.getId()) {
case R.id.dialog_Next:
mp=MediaPlayer.create(getApplicationContext(), R.raw.tick);
mp.start();
Questions();
dismiss();
public boolean onCreateOptionsMenu(Menu menu) {
// I this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.hard__addition, menu);
解决方案 error MediaPlayer (-19, 0) because from the same reference you can call only 18 times.
You need to release the MediaPl
MediaPlayer mp = new MediaPlayer();
mp.prepare();
mp.start();
mp.setOnCompletionListener(new OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
mp.release();
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我创建一个测验应用程序。经过10至12个问题，Medvoice不正确后或错误正在添加的问题。我得到这个错误的MediaPlayer（-19，0）和设置缓存，名称=启用sound_effects，值= 0。请指导我解决这个错误。谢谢我用这code。声音是可播放为8至10倍，然后声音消失。如果我们等待一些二，一段时间后，再次点击按钮，声音开始播放。此外，它在一段时间后崩溃。
包com.kids_进口java.util.Arrays中;进口java.util.Collections中;进口了java.util.R进口android.media.MediaP进口android.os.B进口android.os.CountDownT进口android.os.H进口android.app.A进口android.app.AlertD进口android.app.D进口android.content.DialogI进口android.content.I进口android.graphics.C进口android.graphics.drawable.ColorD进口android.view.M进口android.view.V进口android.view.W进口android.widget.B进口android.widget.ImageV进口android.widget.RadioB进口android.widget.RadioG进口android.widget.RadioGroup.OnCheckedChangeL进口android.widget.TextV进口android.widget.T公共类HardAddition延伸活动{RadioGroup中选择;单选ANSWER1，ANSWER2，ANSWER3;TextView的NUM1，NUM2，计数器，应答check_answer1;INT结果，Z，得分= 00;最后随机兰特=新的随机（）;CountDownTimer定时器1;按钮提交，下一步;ImageView的图像;MediaPlayer的熔点;@覆盖保护无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_hard__addition）;
//获取单选按钮，TextViews
选项=（RadioGroup中）findViewById（R.id.Hard_Add_RdGrp）;
ANSWER1 =（单选）findViewById（R.id.Hard_Add_answer1）;
ANSWER2 =（单选）findViewById（R.id.Hard_Add_Answer2）;
ANSWER3 =（单选）findViewById（R.id.Hard_Add_Answer3）;
NUM1 =（的TextView）findViewById（R.id.Hard_Add_Num1_ID）;
NUM2 =（的TextView）findViewById（R.id.Hard_Add_Num2_ID）;
计数器=（的TextView）findViewById（R.id.Hard_Additon_Counter）;
答案=（的TextView）findViewById（R.id.Hard_Additon_Answer）;
check_answer1 =（的TextView）findViewById（R.id.Hard_Addition_checked_answer）;
图像=（ImageView的）findViewById（R.id.Hard_Addition_ImageView）;
//设置定时器
定时器1 =新CountDownTimer（1）{
公共无效onTick（长millisUntilFinished）{
Counter.setText（“”
+ formatTime（millisUntilFinished））;
私人字符串formatTime（long millis）来{
// TODO自动生成方法存根
字符串输出=“00”;
长秒=米利斯/ 1000;
//长分钟=秒/ 60;
秒秒= 60％;
//分钟=分钟％60;
字符串secondsD =将String.valueOf（秒）;
//字符串minutesD =将String.valueOf（分钟）;
如果（秒-1，10）
{secondsD =“0”+秒;
//如果（分钟小于10）
// minutesD =“0”+分钟;
输出= secondsD;
公共无效onFinish（）{
Counter.setText（“”）;
// Counter_Dialog（）;
CustomDialogClass CDD =新CustomDialogClass（HardAddition.this）;
cdd.getWindow（）setBackgroundDrawable（新ColorDrawable（Color.TRANSPARENT））;
cdd.show（）;
//调用方法来生成随机数
getRandom（）;
//启动定时器
timer1.start（）;
options.setOnCheckedChangeListener（新OnCheckedChangeListener（）{
公共无效onCheckedChanged（RadioGroup中为arg0，ARG1 INT）{
// TODO自动生成方法存根
检查答案（）;
//提交按钮，查看答案
提交=（按钮）findViewById（R.id.Hrd_AddOK_Btn_ID）;;
Submit.setOnClickListener（新View.OnClickListener（）{
公共无效的onClick（查看为arg0）{
// TODO自动生成方法存根
MediaPlayer的MP = MediaPlayer.create（HardAddition.this，R.raw.tick）;
mp.start（）;
timer1.cancel（）;
Submit.setVisibility（View.INVISIBLE）;
//调用方法，它会检查下面定义的答案
是正确的（）;
}）;}//方法生成随机数公共无效getRandom（）{
INT FirstNum = rand.nextInt（（）+1）+500;
Num1.setText（将String.valueOf（FirstNum））;
INT SecondNum = rand.nextInt（（）+1）+1000;
Num2.setText（将String.valueOf（SecondNum））;
INT X =的Integer.parseInt（Num1.getText（）的toString（））;
INT Y =的Integer.parseInt（Num2.getText（）的toString（））;
结果= X + Y;
answer2.setText（将String.valueOf（结果））;
INT option_value1;
option_value1 = rand.nextInt（（）+1）+500;
而（option_value1 ==结果）;
answer1.setText（将String.valueOf（option_value1））;
INT option_value2;
option_value2 = rand.nextInt（（）+1）+1500;
而（option_value2 ==结果）;
answer3.setText（将String.valueOf（option_value2））;
int类型的=的Integer.parseInt（answer1.getText（）的toString（））;
INT B =的Integer.parseInt（answer2.getText（）的toString（））;
INT C =的Integer.parseInt（answer3.getText（）的toString（））;
整数[]选项= {A，B，C};
Collections.shuffle（Arrays.asList（选项））;
//赋值的选择
一个=项[0];
C =选项[2];
answer1.setText（将String.valueOf（一））;
answer2.setText（将String.valueOf（B））;
answer3.setText（将String.valueOf（C））;
}//方法来检查答案 公共无效isCorrect（） {
如果（answer1.isChecked（）==假放;＆安培; answer2.isChecked（）==假放;＆安培; answer3.isChecked（）== FALSE）
Toast.makeText（getApplicationContext（），“请选择一个选项”，Toast.LENGTH_SHORT）.show（）;
Submit.setVisibility（View.VISIBLE）;
否则如果（answer1.isChecked（））
Image.setVisibility（View.VISIBLE）;
Z =的Integer.parseInt（answer1.getText（）的toString（））;
如果（Z ==结果）
//显示图像
Image.setBackgroundResource（R.drawable.a）;
//播放声音
MP = MediaPlayer.create（HardAddition.this，R.raw.wow）;
mp.start（）;
// Increamenting分数
increamentscore（）;
//生成新问题
最后的处理程序处理程序=新的处理程序（）;
handler.postDelayed（新的Runnable（）{
公共无效的run（）{
// TODO自动生成方法存根
answer1.setChecked（假）;
answer2.setChecked（假）;
answer3.setChecked（假）;
mp.stop（）;
mp.release（）;
}，3500）;
//显示图像
Image.setBackgroundResource（R.drawable.r）;
//播放声音
MP = MediaPlayer.create（HardAddition.this，R.raw.okay）;
mp.start（）;
最后的处理程序处理程序=新的处理程序（）;
handler.postDelayed（新的Runnable（）{
公共无效的run（）{
// TODO自动生成方法存根
answer1.setChecked（假）;
answer2.setChecked（假）;
answer3.setChecked（假）;
mp.stop（）;
mp.release（）;
}，3500）;
否则如果（answer2.isChecked（））
{Image.setVisibility（View.VISIBLE）;
Z =的Integer.parseInt（answer2.getText（）的toString（））;
如果（Z ==结果）
//显示图像
Image.setBackgroundResource（R.drawable.b）;
//播放声音
MP = MediaPlayer.create（HardAddition.this，R.raw.wow）;
mp.start（）;
Increamenting分数
increamentscore（）;
最后的处理程序处理程序=新的处理程序（）;
handler.postDelayed（新的Runnable（）{
公共无效的run（）{
// TODO自动生成方法存根
answer1.setChecked（假）;
answer2.setChecked（假）;
answer3.setChecked（假）;
mp.stop（）;
mp.release（）;
}，3500）;
//显示图像
Image.setBackgroundResource（R.drawable.r）;
//播放声音
MP = MediaPlayer.create（HardAddition.this，R.raw.okay）;
mp.start（）;
最后的处理程序处理程序=新的处理程序（）;
handler.postDelayed（新的Runnable（）{
公共无效的run（）{
// TODO自动生成方法存根
answer1.setChecked（假）;
answer2.setChecked（假）;
answer3.setChecked（假）;
mp.stop（）;
mp.release（）;
}，3500）;
否则如果（answer3.isChecked（））
Image.setVisibility（View.VISIBLE）;
Z =的Integer.parseInt（answer3.getText（）的toString（））;
如果（Z ==结果）
//显示图像
Image.setBackgroundResource（R.drawable.a）;
//播放声音
MP = MediaPlayer.create（HardAddition.this，R.raw.wow）;
mp.start（）;
increamentscore（）;
最后的处理程序处理程序=新的处理程序（）;
handler.postDelayed（新的Runnable（）{
公共无效的run（）{
// TODO自动生成方法存根
answer1.setChecked（假）;
answer2.setChecked（假）;
answer3.setChecked（假）;
mp.stop（）;
mp.release（）;
}，3500）;
//显示图像
Image.setBackgroundResource（R.drawable.r）;
//播放声音
MP = MediaPlayer.create（HardAddition.this，R.raw.okay）;
mp.start（）;
最后的处理程序处理程序=新的处理程序（）;
handler.postDelayed（新的Runnable（）{
公共无效的run（）{
// TODO自动生成方法存根
answer1.setChecked（假）;
answer2.setChecked（假）;
answer3.setChecked（假）;
mp.stop（）;
mp.release（）;
}，3500）;
公共无效Counter_Dialog（）{
最后AlertDialog.Builder建设者=新AlertDialog.Builder（本）;
builder.setTitle（“时间到了！”）
.setMessage（
“你的时间到了，preSS下一步将移动到下一个问题”）
// .setIcon（android.R.drawable.ic_dialog_alert）
.setPositiveButton（“下一步”，
新DialogInterface.OnClickListener（）{
公共无效的onClick（DialogInterface对话框，
其中INT）{
熔点= MediaPlayer.create（getApplicationContext（），R.raw.tick）;
mp.start（）;
//timer1.start（）;
answer1.setChecked（假）;
answer2.setChecked（假）;
answer3.setChecked（假）;
// .setNegativeButton（“否”，空）
。显示（）;}// Increamenting分数公众诠释increamentscore（）{
如果（分数＆LT; 99）
得分=得分+ 1;
Answer.setText（将String.valueOf（分数））;
返回分数;}//生成新问题公共无效的问题（）{
Image.setVisibility（View.GONE）;
getRandom（）;
timer1.start（）;
options.clearCheck（）;
check_answer1.setText（将String.valueOf（“”））;
Submit.setVisibility（View.VISIBLE）;} //由用户检查托运答案的价值公共无效check_answer（）{INT?;
开关（options.getCheckedRadioButtonId（））
{案例R.id.Hard_Add_answer1：
Y =的Integer.parseInt（answer1.getText（）的toString（））;
check_answer1.setText（将String.valueOf（Y））;
打破;案例R.id.Hard_Add_Answer2：
Y =的Integer.parseInt（answer2.getText（）的toString（））;
check_answer1.setText（将String.valueOf（Y））;打破;案例R.id.Hard_Add_Answer3：
Y =的Integer.parseInt（answer3.getText（）的toString（））;
check_answer1.setText（将String.valueOf（Y））;
}}//对话，其中将显示在当时间到了公共类CustomDialogClass扩展对话框implementsandroid.view.View.OnClickListener{公共活动℃;公众对话D组;公共CustomDialogClass（活动）{超级（一）;// TODO自动生成构造函数存根this.c =一个;}@覆盖 保护无效的onCreate（捆绑savedInstanceState）{super.onCreate（savedInstanceState）;requestWindowFeature（Window.FEATURE_NO_TITLE）;的setContentView（R.layout.dialog_box）;下一步=（按钮）findViewById（R.id.dialog_Next）;Next.setOnClickListener（本）;}@覆盖公共无效的onClick（视图v）{开关（v.getId（））{案例R.id.dialog_Next： 熔点= MediaPlayer.create（getApplicationContext（），R.raw.tick）; mp.start（）; 问题（）;
打破; 默认：
打破; } 解雇（）;}}@覆盖公共布尔onCreateOptionsMenu（菜单菜单）{
//充气菜单;如果是present这增加了项目操作栏。
。getMenuInflater（）膨胀（R.menu.hard__addition，菜单）;
返回}} 解决方案 错误的MediaPlayer（-19，0），因为来自同一个参考，你可以调用只有18次。您需要释放时的MediaPlayer完成;
MediaPlayer的熔点为新的MediaPlayer（）; MP prepare（）。 mp.start（）;mp.setOnCompletionListener（新OnCompletionListener（）{
公共无效onCompletion（MediaPlayer的MP）{
mp.release（）;
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