Android非常量表达式:迁移是必要的

I have been told I must change my switch statements to If-Else statements due to changes in API 14.

由于API 14的变化，我被告知必须将我的switch语句更改为If-Else语句。

Thats fine.

这很好。

What isn't working is when I place my caret over the switch statement and press CTRL-1 as per the instructions I am given no options, I am using Ubuntu by the way, any suggestions?

当我把我的插入符号放在switch语句上，按下CTRL-1按我没有选择的指令按CTRL-1时，我正在使用Ubuntu，有什么建议吗?

I've also tried cleaning my project.

我也尝试过清理我的项目。

edit. Its working for all other switch statements just not the one contained here:

编辑。它适用于所有其他的交换机声明而不是这里所包含的:

public void onClick(View v) {
        switch (v.getId()) {

        case R.id.btnCalcCalories:
            double weight = Integer.parseInt(etWeight.getText().toString());
            double bodyfat = Integer.parseInt(etBodyfat.getText().toString());
            ;
            lbm = weight * (100 - bodyfat) / 100;
            bmr = 370 + (21.6 * lbm);
            maintCals = bmr * actLevel;

            maintCalories
                    .setText("Calories need to maintain current bodyweight: "
                            + String.valueOf(maintCals));

            lbmResult.setText("Your Lean Body Mass is " + String.valueOf(lbm)
                    + "Kg");
            bmrResult.setText("Your Base Metabolic rate is "
                    + String.valueOf(bmr) + " calories");
            calorieResult.setText("Your Daily calorie goal is "
                    + String.valueOf(finalGPercentage) + " calories");
            break;
        case R.id.btnUpdateDB:
            boolean worked = true;
            try {
                String dbWeight = curWeight.getText().toString();
                String dbWaist = curWaist.getText().toString();
                String dbChest = curChest.getText().toString();
                String dbLegs = curLegs.getText().toString();
                String dbArms = curArms.getText().toString();

                Stats entry = new Stats(MainActivity.this);
                entry.open();
                entry.createEntry(dbWeight, dbWaist, dbChest, dbArms, dbLegs);
                entry.close();
                break;
            } catch (Exception e) {
                worked = false;
                String error = e.toString();
                Dialog d = new Dialog(this);
                d.setTitle("Error");
                TextView tv = new TextView(this);
                tv.setText(error);
                d.setContentView(tv);
                d.show();
            } finally {
                if (worked) {
                    Dialog d = new Dialog(this);
                    d.setTitle("DB Worked");
                    TextView tv = new TextView(this);
                    tv.setText("Success");
                    d.setContentView(tv);
                    d.show();
                }
            }

        case R.id.btnViewDB:
            Intent i = new Intent("com.uhi.fatfighter.DBView");
            startActivity(i);
            break;
        case R.id.btnStopwatchActivity:
            Intent s = new Intent("com.uhi.fatfighter.Stopwatch");
            startActivity(s);
            break;
        case R.id.btnMapARun:
            Intent m = new Intent("com.uhi.fatfighter.MapRun");
            startActivity(m);
            break;
        case R.id.btnWeightConverter:
            Intent w = new Intent("com.uhi.fatfighter.WeightConverter");
            startActivity(w);
            break;
        }

    }

2 个解决方案

#1

In my project properties I had my Google-libs checked as 'is library', unchecked this and it fixed the problem.

在我的项目属性中，我检查了我的Google-libs作为'is library'，不检查这个，它就解决了问题。

#2

1. The problem is that Eclipse is stupid. You should use IntelliJ IDEA if you want do cool stuff like this.

   问题是Eclipse是愚蠢的。如果你想做一些很酷的事情，你应该使用IntelliJ创意。

2. Don't forget to call trim() method to remove trailing spaces.

   不要忘记调用trim()方法来删除尾随空格。

   double weight = Integer.parseInt(etWeight.getText().toString());

   .toString双重量= Integer.parseInt(etWeight.getText()());

3. Using magic numbers is not good manner.

   使用魔术数字不是好的方式。

   bmr = 370 + (21.6 x lbm);

   bmr = 370 + (21.6 x lbm);

4. Catching root Exception is not good manner.

   捕获根异常不是好方法。

   catch (Exception e)

   捕获(异常e)

5. Never show Dialog in finally block, your application may crash at this time.

   不要在finally块中显示对话框，您的应用程序此时可能会崩溃。