我有一个问题,我做了多次计算,每次都有结果,一旦最终计算完成,我就想将结果存储在共享偏好中,问题是我保留得到零。SharedPreferences没有正确存储
,这里是我的循环的计算是由和共享偏好
活动1
for (i = 0; i < happyRating.size()-1; i++) {
int test = happyRating.get(i);
if (happyRating.get(i) < happyRating.size()) {
Log.d("TestTrain", "CALLED");
int x, x1, x2, y, y1, y2;
double learningRate = -0.00002;
//double learningRate = -0.00092;
x1 = happyRating.get(i);
x2 = happyRating.get(i + 1);
y1 = iteration[i];
y2 = iteration[i + 1];
x = x2 - x1;
y = y2 - y1;
if (x == 0) {
slope = 0;
} else {
slope = (y2 - y1)/(x2 - x1);
}
double weightAdj = happyRating.get(i) * slope * learningRate;
weighting = (weighting + weightAdj);
dynA = distArray[i] * weighting;
Log.d("TestInt", "HappyRating (i): " + Integer.toString(test));
Log.d("WEIGHTING", Double.toString(weighting));
String PREFS1 = "siclPrefs1";
SharedPreferences siclPrefs1 = getSharedPreferences(PREFS1,0);
Editor editor = siclPrefs1.edit();
editor.putFloat("Weight7", (float) weighting);
editor.commit();
if (dynA > 1)
{
break;
}
} else {
break;
}
}
我使用sharedpreferences存储一个布尔值和代码当我检查,在未来活动很好。如果有任何冲突,这里的代码为
TrainingDone = true;
String PREFS = "siclPrefs";
SharedPreferences siclPrefs = getSharedPreferences(PREFS,0);
Editor editor = siclPrefs.edit();
editor.putBoolean("Train7", TrainingDone);
editor.commit();
活动2
在其他活动中提取如下
String PREFS = "siclPrefs";
SharedPreferences siclPrefs = getSharedPreferences(PREFS, 0);
String PREFS1 = "siclPrefs1";
SharedPreferences siclPrefs1 = getSharedPreferences(PREFS1, 0);
double weight = (double) siclPrefs1.getFloat("Weight7", 0);
Boolean train = siclPrefs.getBoolean("Train7", false);
布尔被排出的细做,然而重量显示为零,我知道这是因为它不在那里,默认值为零。我可以重复使用编辑器吗?还是我摔倒的地方?
问候, 加里
嘿,存储SharedPref的代码是在一个循环中。你确定你想要吗?每次都会覆盖相同的pref。你每次都能正确地获得Weight7的价值吗? – SKK 2013-04-25 16:23:01
嗨,是的,进入重量7的价值是重量,这是正确的,这是我想存储和检索的最终覆盖..有什么明显的错误? – 2013-04-25 16:26:52
如果你只是想要最后一个,那么你应该在循环之外编写你的编辑器,只是为了减少你无用的读/写你的偏好。 – StoneBird 2013-04-25 16:35:10