- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
关闭。这个问题需要更多 focused .它目前不接受答案。
想改进这个问题?更新问题,使其仅关注一个问题 editing this post .
8年前关闭。
Improve this question
我有以下代码有效并为我提供了我正在寻找的解决方案,但是我想做的是将以下部分分解为我自己的类,以便我可以在应用程序启动时初始化数组:
String[] questions = getResources().getStringArray(R.array.questions);
List<String> qlist = new ArrayList<String>();
for(String s: questions){
qlist.add(s);
}
questioncount = qlist.size();
Collections.shuffle(qlist);
int cr = (r.nextInt(questioncount - 0) + 0);
ques.setText(qlist.get(cr).toString());
Log.i("VertygoEclypse", qlist.get(cr).toString());
String[] questions = getResources().getStringArray(R.array.questions);
List<String> qlist = new ArrayList<String>();
for(String s: questions){
qlist.add(s);
}
questioncount = qlist.size();
Collections.shuffle(qlist);
int cr = (r.nextInt(questioncount - 0) + 0);
ques.setText(qlist.get(cr).toString());
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="23dp"
android:layout_marginTop="15dp"
android:layout_marginBottom="30dip"
android:text="TextView" />
<RadioGroup
android:id="@+id/rbg_answergroup"
android:layout_width="188dp"
android:layout_height="wrap_content"
android:layout_marginBottom="30dip"
android:layout_gravity="center">
<RadioButton
android:id="@+id/rb_dnm"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="Does Not Matter" />
<RadioButton
android:id="@+id/rb_att"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="All the Time" />
<RadioButton
android:id="@+id/rb_st"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Sometimes" />
<RadioButton
android:id="@+id/rb_naa"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Not at All" />
</RadioGroup>
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TableRow
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="@+id/previousquestion"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
android:layout_weight="33"/>
<Button
android:id="@+id/answerbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
android:layout_weight="33"/>
<Button
android:id="@+id/nextquestion"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
android:layout_weight="33" />
</TableRow>
</TableLayout>
<TableRow
android:id="@+id/tableRow2"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Current Total"
android:paddingRight="25dip" />
<TextView
android:id="@+id/runningtotal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0" />
</TableRow>
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">quiztest</string>
<string name="action_settings">Settings</string>
<string name="hello_world">Hello world!</string>
<string-array name="questions">
<item>Are you Drunk? </item>
<item>Do you currently love everyone?</item>
<item>Do you currently love your job?</item>
<item>Do you prefer Beers over Rum?</item>
<item>Do you currently wish to tell off your boss?</item>
<item>Feel like taking a picture and sending it to someone?</item>
<item>Spin around and when you stop are things spinning?</item>
<item>Can you walk in a straight line?</item>
<item>Does 1 + 1 = 11?</item>
<item>Can you explain why "42" is the Secret to Life?</item>
<item>How do you feel about checking out George Street for a Good Time?</item>
<item>When you see a striped pants does your heart skip a beat?</item>
<item>Can you say for sure that bad thoughts have not passed through your head about a co-worker?</item>
<item>When is a good time to Drink?</item>
<item>Can you only have 1 beer.</item>
<item>Does the words 1-z mean just one beer?</item>
<item>Can you say for sure that you have never instigated a Drinking lime?</item>
<item>Given the opportunity to go home with a complete stranger will you?</item>
<item>How much do you think that you can be a designated driver</item>
<item>Given the chance to consumate with Sus scrofa domesticus will you?</item>
<item>If real "HONGREE" will you eat dogfood?</item>
</string-array>
package com.vertygoeclypse.quiztest;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TextView;
public class MainActivity extends Activity {
TextView ques;
TextView rt;
Button nxtqstn;
Button prvsqstn;
Button sbtanswr;
RadioGroup arg;
int answertotal = 0;
int rdochkid = -1;
Random r = new Random();
int questioncount;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
nxtqstn = (Button) findViewById(R.id.nextquestion);
prvsqstn = (Button)findViewById(R.id.previousquestion);
sbtanswr = (Button)findViewById(R.id.answerbutton);
arg = (RadioGroup)findViewById(R.id.rbg_answergroup);
ques = (TextView) findViewById(R.id.textView1);
rt = (TextView)findViewById(R.id.runningtotal);
arg.setOnCheckedChangeListener(new OnCheckedChangeListener(){
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
rdochkid = checkedId;
}
});
prvsqstn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
});
nxtqstn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
});
String[] questions = getResources().getStringArray(R.array.questions);
List<String> qlist = new ArrayList<String>();
for(String s: questions){
qlist.add(s);
}
questioncount = qlist.size();
Collections.shuffle(qlist);
int cr = (r.nextInt(questioncount - 0) + 0);
ques.setText(qlist.get(cr).toString());
Log.i("VertygoEclypse", qlist.get(cr).toString());
}
public void AnswerCheck(){
if(rdochkid == -1){
rdochkid = arg.getId();
}
if(rdochkid == R.id.rb_dnm){
answertotal = answertotal+10;
}
if(rdochkid == R.id.rb_att){
answertotal = answertotal+5;
}
if(rdochkid == R.id.rb_st){
answertotal = answertotal+3;
}
if(rdochkid == R.id.rb_naa){
answertotal = answertotal+1;
}
}
public void resetquiz(){
answertotal = 0;
rdochkid = -1;
}
String[] questions = getResources().getStringArray(R.array.questions);
List<String> qlist = new ArrayList<String>();
for(String s: questions){
qlist.add(s);
}
questioncount = qlist.size();
Collections.shuffle(qlist);
package com.vertygoeclypse.quiztest;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;
import android.content.Context;
import android.util.Log;
public class QuizAdapter {
//---------------------------------------------------------------------------------------------------------------/
String[] questions = null;
List<String> qlist = null;
private int questioncount;
Random r = new Random();
int cr;
Context context;
//---------------------------------------------------------------------------------------------------------------/
QuizAdapter(Context context){
Log.i("QuizAdapter", "We Are Here - 1");
this.context = context;
}
//---------------------------------------------------------------------------------------------------------------/
void initializequestions(){
Log.i("QuizAdapter", "We Are Here - 2");
questions = context.getResources().getStringArray(R.array.questions);
Log.i("QuizAdapter", "We Are Here - 3");
qlist = new ArrayList<String>();
Log.i("QuizAdapter", "We Are Here - 4");
for(String s: questions){
Log.i("QuizAdapter", "We Are Here - 5");
qlist.add(s);
}
questioncount = qlist.size();
Collections.shuffle(qlist);
cr = (r.nextInt(questioncount - 0) + 0);
// ques.setText(qlist.get(cr).toString());
for(int counter = 0; counter < 20; counter++){
Log.i("VertygoEclypse", qlist.get(counter).toString());
}
}
//---------------------------------------------------------------------------------------------------------------/
public List<String> getquestions(List<String> qlist){
return qlist;
}
}
Context context;
QuizAdapter qa = new QuizAdapter(context);
Log.i("VertygoEclypse", "Just before Null Pointer");
qa.initializequestions();
Log.i("VertygoEclypse", "Just after Null Pointer");
Log.i("QuizAdapter", "We Are Here - 2");
questions = context.getResources().getStringArray(R.array.questions);
Log.i("QuizAdapter", "We Are Here - 3");
12-26 00:24:46.247: I/QuizAdapter(1628): We Are Here - 1
12-26 00:24:46.977: I/VertygoEclypse(1628): Just before Null Pointer
12-26 00:24:46.977: I/QuizAdapter(1628): We Are Here - 2
12-26 00:24:46.977: D/AndroidRuntime(1628): Shutting down VM
12-26 00:24:46.977: W/dalvikvm(1628): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
12-26 00:24:46.987: E/AndroidRuntime(1628): FATAL EXCEPTION: main
12-26 00:24:46.987: E/AndroidRuntime(1628): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.vertygoeclypse.quiztest/com.vertygoeclypse.quiztest.MainActivity}: java.lang.NullPointerException
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.app.ActivityThread.access$600(ActivityThread.java:141)
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.os.Handler.dispatchMessage(Handler.java:99)
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.os.Looper.loop(Looper.java:137)
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.app.ActivityThread.main(ActivityThread.java:5041)
12-26 00:24:46.987: E/AndroidRuntime(1628): at java.lang.reflect.Method.invokeNative(Native Method)
12-26 00:24:46.987: E/AndroidRuntime(1628): at java.lang.reflect.Method.invoke(Method.java:511)
12-26 00:24:46.987: E/AndroidRuntime(1628): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
12-26 00:24:46.987: E/AndroidRuntime(1628): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
12-26 00:24:46.987: E/AndroidRuntime(1628): at dalvik.system.NativeStart.main(Native Method)
12-26 00:24:46.987: E/AndroidRuntime(1628): Caused by: java.lang.NullPointerException
12-26 00:24:46.987: E/AndroidRuntime(1628): at com.vertygoeclypse.quiztest.QuizAdapter.initializequestions(QuizAdapter.java:28)
12-26 00:24:46.987: E/AndroidRuntime(1628): at com.vertygoeclypse.quiztest.MainActivity.onCreate(MainActivity.java:68)
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.app.Activity.performCreate(Activity.java:5104)
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
12-26 00:24:46.987: E/AndroidRuntime(1628): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
最佳答案
下面是一个简单的例子。请原谅我在没有安装 SDK 的情况下输入记事本++ 时出现的错误。
像下面的例子应该可以工作。注意有一些问题,例如:
public class Questions
{
private List<String> qlist;
public Questions()
{
resetList()
}
public void resetList()
{
String[] questions = getResources().getStringArray(R.array.questions);
qlist = new ArrayList<String>();
for(String s: questions){
qlist.add(s);
}
Collections.shuffle(qlist);
}
public int getQuestionCount()
{
return qlist.size();
}
public String getRandomQuestion(boolean deleteIt) //deleteIt means we do not show this again
{
if(qlist.size()==0) //No more questions
return "No more questions";
if(deleteIt)
return qlist.removeElement(qlist.size()-1) //However method is called remove/pop/etc...
return qlist.get(Math.Random()*(qlist.size()-0.1)).toString(); //or some other random generation
}
}
getRandomQuestion(true)
删除提供的问题。使用
false
相反,意味着可以多次提供相同的问题。
关于android - 如何将以下代码分解为android中的各个类,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20776207/
我尝试理解[c代码 -> 汇编]代码 void node::Check( data & _data1, vector& _data2) { -> push ebp -> mov ebp,esp ->
我需要在当前表单(代码)的上下文中运行文本文件中的代码。其中一项要求是让代码创建新控件并将其添加到当前窗体。 例如,在Form1.cs中: using System.Windows.Forms; ..
我有此 C++ 代码并将其转换为 C# (.net Framework 4) 代码。有没有人给我一些关于 malloc、free 和 sprintf 方法的提示? int monate = ee; d
我的网络服务器代码有问题 #include #include #include #include #include #include #include int
给定以下 html 代码,将列表中的第三个元素(即“美丽”一词)以斜体显示的 CSS 代码是什么?当然,我可以给这个元素一个 id 或一个 class,但 html 代码必须保持不变。谢谢
关闭。这个问题不符合Stack Overflow guidelines .它目前不接受答案。 我们不允许提问寻求书籍、工具、软件库等的推荐。您可以编辑问题,以便用事实和引用来回答。 关闭 7 年前。
我试图制作一个宏来避免重复代码和注释。 我试过这个: #define GrowOnPage(any Page, any Component) Component.Width := Page.Surfa
我正在尝试将我的旧 C++ 代码“翻译”成头条新闻所暗示的 C# 代码。问题是我是 C# 中的新手,并不是所有的东西都像 C++ 中那样。在 C++ 中这些解决方案运行良好,但在 C# 中只是不能。我
在 Windows 10 上工作,R 语言的格式化程序似乎没有在 Visual Studio Code 中完成它的工作。我试过R support for Visual Studio Code和 R-T
我正在处理一些报告(计数),我必须获取不同参数的计数。非常简单但乏味。 一个参数的示例查询: qCountsEmployee = ( "select count(*) from %s wher
最近几天我尝试从 d00m 调试网络错误。我开始用尽想法/线索,我希望其他 SO 用户拥有可能有用的宝贵经验。我希望能够提供所有相关信息,但我个人无法控制服务器环境。 整个事情始于用户注意到我们应用程
我有一个 app.js 文件,其中包含如下 dojo amd 模式代码: require(["dojo/dom", ..], function(dom){ dom.byId('someId').i
我对“-gencode”语句中的“code=sm_X”选项有点困惑。 一个例子:NVCC 编译器选项有什么作用 -gencode arch=compute_13,code=sm_13 嵌入库中? 只有
我为我的表格使用 X-editable 框架。 但是我有一些问题。 $(document).ready(function() { $('.access').editable({
我一直在通过本教程学习 flask/python http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-wo
我想将 Vim 和 EMACS 用于 CNC、G 代码和 M 代码。 Vim 或 EMACS 是否有任何语法或模式来处理这种类型的代码? 最佳答案 一些快速搜索使我找到了 this vim 和 thi
关闭。这个问题不符合Stack Overflow guidelines .它目前不接受答案。 想改进这个问题?更新问题,使其成为 on-topic对于堆栈溢出。 7年前关闭。 Improve this
这个问题在这里已经有了答案: Enabling markdown highlighting in Vim (5 个回答) 6年前关闭。 当我在 Vim 中编辑包含 Markdown 代码的 READM
我正在 Swift3 iOS 中开发视频应用程序。基本上我必须将视频 Assets 和音频与淡入淡出效果合并为一个并将其保存到 iPhone 画廊。为此,我使用以下方法: private func d
pipeline { agent any stages { stage('Build') { steps { e
我是一名优秀的程序员,十分优秀!