(删除了帖子的旧内容)
编辑#2:好的,所以现在我很清楚是编辑器试图达到导致空指针异常的首选项。关于如何解决它的任何帮助?
这是更新的活动:
public SharedPreferences sharedPreferences;
Editor editor;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// requesting to turn the title OFF
requestWindowFeature(Window.FEATURE_NO_TITLE);
// making it full screen
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
// set our MainGamePanel as the View
setContentView(new MainGamePanel(this));
// Restore preferences
this.sharedPreferences = getPreferences(MODE_PRIVATE);
this.editor = sharedPreferences.edit();
try {
int wins = GetPreferences("wins");
int fails = GetPreferences("fails");
gamePanel.winn = wins;
gamePanel.failn = fails;
} catch (NullPointerException npe) {
Log.d(TAG, "Nothing to load");
}
//INIT SOUND
mSoundManager.initSounds(getBaseContext());
//SOUNDS
mSoundManager.addSound(1, R.raw.draw);
mSoundManager.addSound(2, R.raw.cheer);
mSoundManager.addSound(3, R.raw.boo);
}
@SuppressWarnings("deprecation")
@Override
public void onBackPressed()
{
super.onBackPressed();
if (gamePanel.gamei==true) {
gamePanel.back();
} else if (gamePanel.menui==true) {
finish();
System.runFinalizersOnExit(true);
System.exit(0);
}
}
public void onPause()
{
super.onPause();
//KILL ALL
finish();
System.runFinalizersOnExit(true);
System.exit(0);
}
@Override
protected void onStop(){
super.onStop();
//KILL ALL
finish();
System.runFinalizersOnExit(true);
System.exit(0);
}
public int GetPreferences(String key) {
return sharedPreferences.getInt(key, 0);
}
public void SavePreferences(String key, int value) {
editor.putInt(key, value);
editor.apply();
}
public void writeWin () {
SavePreferences("wins", gamePanel.winn);
}
public void writeFail () {
SavePreferences("fails", gamePanel.failn);
}
编辑器是导致 nullpointerexception: 的原因this.editor = sharedPreferences.edit();
。编辑:它是导致 nullpointerexception 的 sharedPreferences,而不是编辑器。
编辑器似乎无法达到 Preference: this.sharedPreferences = getPreferences(MODE_PRIVATE);
。
关于如何解决这个问题的任何想法?