我编写了一个测验应用程序。我已经设置了如果高分超过10，将永久显示ImageView。在重新启动应用程序时也能正常工作，唯一的问题是，如果用户达到例如11的高分，并且在测验开始后直接回答正确然后错误，则ImageView将消失。共享首选项位于主要活动（测验活动）中，并且将是Menu2（第二个活动）中的calles。
测验活动java：
RuntimeError Traceback (most recent call
last)
<ipython-input-15-4b8522aa1eb0> in <module>()
3 url = 'http://localhost:9000/spend_api'
4 files = {'file': ('Test_data_final.csv')}
----> 5 r = request.post(url,files=files)
6
7
C:\Users\pavansubhash_t\AppData\Local\Continuum\Anaconda2\lib\site -
packages\werkzeug\local.pyc in __getattr__(self, name)
345 if name == '__members__':
346 return dir(self._get_current_object())
--> 347 return getattr(self._get_current_object(), name)
348
349 def __setitem__(self, key, value):
C:\Users\pavansubhash_t\AppData\Local\Continuum\Anaconda2\lib\site-packages\werkzeug\local.pyc in _get_current_object(self)
304 """
305 if not hasattr(self.__local, '__release_local__'):
--> 306 return self.__local()
307 try:
308 return getattr(self.__local, self.__name__)
C:\Users\pavansubhash_t\AppData\Local\Continuum\Anaconda2\lib\site-packages\flask\globals.pyc in _lookup_req_object(name)
35 top = _request_ctx_stack.top
36 if top is None:
---> 37 raise RuntimeError(_request_ctx_err_msg)
38 return getattr(top, name)
39
RuntimeError: Working outside of request context.
菜单2：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_quiz);
//Randromizes the row of the questions
QuestionLibrary q = new QuestionLibrary();
System.out.printf("Question:0 Choice:(%s, %s, %s) Answer:%s%n",
q.getChoice1(0), q.getChoice2(0), q.getChoice3(0), q.getCorrectAnswer(0));
q.shuffle();
System.out.printf("Question:0 Choice:(%s, %s, %s) Answer:%s%n",
q.getChoice1(0), q.getChoice2(0), q.getChoice3(0), q.getCorrectAnswer(0));
mQuestionLibrary.shuffle();
//End randomizer
//We need this for the NAVIGATION DRAWER
mToolbar = (Toolbar) findViewById(R.id.nav_action);
setSupportActionBar(mToolbar);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
mToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.open, R.string.close);
mDrawerLayout.addDrawerListener(mToggle);
mToggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(true); //Able to see the Navigation Burger "Button"
NavigationView mNavigationView = (NavigationView) findViewById(R.id.nv1);
mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener(){
@Override
public boolean onNavigationItemSelected(MenuItem menuItem){
switch (menuItem.getItemId()){
case(R.id.nav_stats): //If nav stats selected Activity 2 will show up
Intent accountActivity = new Intent(getApplicationContext(),Menu2.class);
startActivity(accountActivity);
}
return true;
}
});
//Initialise
mScoreView = (TextView) findViewById(R.id.score_score);
mQuestionView = (TextView) findViewById(R.id.question);
mButtonChoice1 = (Button) findViewById(R.id.choice1);
mButtonChoice2 = (Button) findViewById(R.id.choice2);
mButtonChoice3 = (Button) findViewById(R.id.choice3);
updateQuestion(); //New question appears
//Start of Button Listener1 -> if true, next question appears +score +1[] Else menu 2 will show
mButtonChoice1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//My logic for Button goes in here
if (mButtonChoice1.getText() == mAnswer) {
mScore = mScore + 1;
updateScore(mScore);
updateQuestion();
//This line of code is optional...
Toast.makeText(QuizActivity.this, "Correct", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(QuizActivity.this, "Wrong... Try again!", Toast.LENGTH_SHORT).show();
Intent intent = new Intent(QuizActivity.this, Menu2.class);
intent.putExtra("score",mScore); //pass score to Menu2
startActivity(intent);
}
}
});
//End of Button Listener1
//Start of Button Listener2
mButtonChoice2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//My logic for Button goes in here
if (mButtonChoice2.getText() == mAnswer) {
mScore = mScore + 1;
updateScore(mScore);
updateQuestion();
//This line of code is optional...
Toast.makeText(QuizActivity.this, "Correct", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(QuizActivity.this, "Oh... wrong your score is 0", Toast.LENGTH_SHORT).show();
Intent intent = new Intent(QuizActivity.this, Menu2.class);
intent.putExtra("score",mScore); //pass score to Menu2
startActivity(intent);
}
}
});
//End of Button Listener2
//Start of Button Listener3
mButtonChoice3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//My logic for Button goes in here
if (mButtonChoice3.getText() == mAnswer) {
mScore = mScore + 1;
updateScore(mScore);
updateQuestion();
//This line of code is optional...
Toast.makeText(QuizActivity.this, "Correct", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(QuizActivity.this, "Come on, that was not so hard...", Toast.LENGTH_SHORT).show();
Intent intent = new Intent(QuizActivity.this, Menu2.class);
intent.putExtra("score",mScore); //pass score to Menu2
startActivity(intent);
}
}
});
//End of Button Listener3
}
private void updateQuestion() {
//If the max. number of questions is reached, menu2 will be open if not
//a new quiz selection appears
if (mQuestionNumber < mQuestionLibrary.getLength()) {
mQuestionView.setText(mQuestionLibrary.getQuestion(mQuestionNumber));
mButtonChoice1.setText(mQuestionLibrary.getChoice1(mQuestionNumber));
mButtonChoice2.setText(mQuestionLibrary.getChoice2(mQuestionNumber));
mButtonChoice3.setText(mQuestionLibrary.getChoice3(mQuestionNumber));
mAnswer = mQuestionLibrary.getCorrectAnswer(mQuestionNumber);
mQuestionNumber++;
}
else {
Toast.makeText(QuizActivity.this, "Last Question! You are very intelligent!", Toast.LENGTH_SHORT).show();
Intent intent = new Intent(QuizActivity.this, Menu2.class);
intent.putExtra("score",mScore); //pass score to Menu2
startActivity(intent);
}
}
private void updateScore ( int point){
mScoreView.setText("" + mScore);
//Shared preferences = a variabe (mScore) gets saved and call up in another activity
SharedPreferences sharedpreferences = getSharedPreferences("mypref", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedpreferences.edit();
editor.putInt("currentscore", mScore);
editor.apply();
}
@Override //Makes that the "Burger" Item, shows the Drawer if someone clicks on the simbol
public boolean onOptionsItemSelected (MenuItem item){
if (mToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
}
答案 0 :(得分：0)
在您updateScore中保存数据，无论得分是多少，因此您删除旧值并使用新值进行更改，因此您需要阅读旧分数并将其与mScore进行比较这个：
SharedPreferences mypref =getPreferences(MODE_PRIVATE);
int highScore = mypref.getInt("highScore", 0);
if(mScore> highScore){
SharedPreferences.Editor editor = mypref.edit();
editor.putInt("currentscore", mScore);
editor.apply();
}
答案 1 :(得分：0)
这是因为你有以下代码
if (applyView >=10) {
imgTrophyView1.setVisibility(View.VISIBLE);
bttPOPUP.setVisibility(View.VISIBLE);
}
if (applyView >= 20){
imgTrophyView2.setVisibility(View.VISIBLE);
}
检查＆＃34; currentScore＆＃34;因此，如果用户在第二次播放时只找到1个答案，那么它将变为1，因此图像不会显示。 我注意到你有一个当前得分的sharedPref，你也有意图传递它。你还有另一个sharedPref？我的建议是只有意图传递它，然后检查它是否为高分，然后将其保存到sharedPref。并且只有一个sharedPref。
修改
从updateScore
中删除以下代码SharedPreferences sharedpreferences = getSharedPreferences("mypref", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedpreferences.edit();
editor.putInt("currentscore", mScore);
editor.apply();
然后使用类似
的内容删除/编辑菜单2中的所有共享首选代码SharedPreferences sharedpreferences = getSharedPreferences("mypref", Context.MODE_PRIVATE);
//first time high score
if (sharedPreferences.getInt("highScore", 0) == 0)
{
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putInt("highScore", mScore );
editor.apply();
}
else
{
int oldScore = sharedPreferences.getInt("highScore", 0);
//new high score
if (mScore > oldScore)
{
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putInt("highScore", mScore );
editor.apply();
}
}