Android Java：将else-if转换为switch

我使用else-if语句检查布尔值，由于使用else-if，这会导致性能下降。

基于这个原因，我正在考虑将else-if语句转换为switch语句，以便我希望听到您的建议，以适当地进行转换。

这是我的else-if陈述

public class Config_Monday_0 { private Context mContext;

public Config_Monday_0(Context context){ this.mContext = context; }

public int monday_0(TextView mon_1, TextView mon_2, TextView mon_3, TextView mon_4, TextView mon_5, TextView mon_6, TextView mon_7, TextView mon_8, TextView mon_9, TextView mon_10, TextView mon_11, TextView mon_12, TextView mon_13, TextView mon_14, TextView mon_15, TextView mon_16, TextView mon_17, TextView mon_18, TextView mon_19, TextView mon_20, TextView mon_21, TextView mon_22, TextView mon_23, TextView mon_24){

Schedule_Boolean_Monday_0 schedule_boolean_monday0 = new Schedule_Boolean_Monday_0(mContext);
DatabaseTimetable databaseTimetable = new DatabaseTimetable(mContext);

int start_time;
int end_time;

//Database 0 AM is not used
if (!schedule_boolean_monday0.Monday_0_1() && !schedule_boolean_monday0.Monday_0_2() && !schedule_boolean_monday0.Monday_0_3() && !schedule_boolean_monday0.Monday_0_4() && !schedule_boolean_monday0.Monday_0_5() &&
        !schedule_boolean_monday0.Monday_0_6() && !schedule_boolean_monday0.Monday_0_7()&& !schedule_boolean_monday0.Monday_0_8() && !schedule_boolean_monday0.Monday_0_9() && !schedule_boolean_monday0.Monday_0_10() &&
        !schedule_boolean_monday0.Monday_0_11() && !schedule_boolean_monday0.Monday_0_12() && !schedule_boolean_monday0.Monday_0_13() && !schedule_boolean_monday0.Monday_0_14() && !schedule_boolean_monday0.Monday_0_15() &&
        !schedule_boolean_monday0.Monday_0_16() && !schedule_boolean_monday0.Monday_0_17()&& !schedule_boolean_monday0.Monday_0_18() && !schedule_boolean_monday0.Monday_0_19() && !schedule_boolean_monday0.Monday_0_20() &&
        !schedule_boolean_monday0.Monday_0_21() && !schedule_boolean_monday0.Monday_0_22() && !schedule_boolean_monday0.Monday_0_23() && !schedule_boolean_monday0.Monday_0_24()){
    return 0;
}
//0 am - 1 hr.
else if (schedule_boolean_monday0.Monday_0_1() && !schedule_boolean_monday0.Monday_0_2() && !schedule_boolean_monday0.Monday_0_3() && !schedule_boolean_monday0.Monday_0_4() && !schedule_boolean_monday0.Monday_0_5() &&
        !schedule_boolean_monday0.Monday_0_6() && !schedule_boolean_monday0.Monday_0_7()&& !schedule_boolean_monday0.Monday_0_8() && !schedule_boolean_monday0.Monday_0_9() && !schedule_boolean_monday0.Monday_0_10() &&
        !schedule_boolean_monday0.Monday_0_11() && !schedule_boolean_monday0.Monday_0_12() && !schedule_boolean_monday0.Monday_0_13() && !schedule_boolean_monday0.Monday_0_14() && !schedule_boolean_monday0.Monday_0_15() &&
        !schedule_boolean_monday0.Monday_0_16() && !schedule_boolean_monday0.Monday_0_17()&& !schedule_boolean_monday0.Monday_0_18() && !schedule_boolean_monday0.Monday_0_19() && !schedule_boolean_monday0.Monday_0_20() &&
        !schedule_boolean_monday0.Monday_0_21() && !schedule_boolean_monday0.Monday_0_22() && !schedule_boolean_monday0.Monday_0_23() && !schedule_boolean_monday0.Monday_0_24()){
    start_time = 0;
    end_time = 1;
    schedule_boolean_monday0.Monday_0_1();
    mon_1.setText(databaseTimetable.Monday_Title(start_time, end_time));
    mon_1.setTextColor(Color.parseColor(databaseTimetable.Monday_Text_Color(start_time, end_time)));
    mon_1.setBackgroundColor(Color.parseColor(databaseTimetable.Monday_Text_BG_Color(start_time, end_time)));
    return 1;
}
//0 am - 2 hr.
else if (!schedule_boolean_monday0.Monday_0_1() && schedule_boolean_monday0.Monday_0_2() && !schedule_boolean_monday0.Monday_0_3() && !schedule_boolean_monday0.Monday_0_4() && !schedule_boolean_monday0.Monday_0_5() &&
        !schedule_boolean_monday0.Monday_0_6() && !schedule_boolean_monday0.Monday_0_7()&& !schedule_boolean_monday0.Monday_0_8() && !schedule_boolean_monday0.Monday_0_9() && !schedule_boolean_monday0.Monday_0_10() &&
        !schedule_boolean_monday0.Monday_0_11() && !schedule_boolean_monday0.Monday_0_12() && !schedule_boolean_monday0.Monday_0_13() && !schedule_boolean_monday0.Monday_0_14() && !schedule_boolean_monday0.Monday_0_15() &&
        !schedule_boolean_monday0.Monday_0_16() && !schedule_boolean_monday0.Monday_0_17()&& !schedule_boolean_monday0.Monday_0_18() && !schedule_boolean_monday0.Monday_0_19() && !schedule_boolean_monday0.Monday_0_20() &&
        !schedule_boolean_monday0.Monday_0_21() && !schedule_boolean_monday0.Monday_0_22() && !schedule_boolean_monday0.Monday_0_23() && !schedule_boolean_monday0.Monday_0_24()){
    start_time = 0;
    end_time = 2;
    schedule_boolean_monday0.Monday_0_2();
    mon_1.setText(databaseTimetable.Monday_Title(start_time, end_time));
    mon_1.setTextColor(Color.parseColor(databaseTimetable.Monday_Text_Color(start_time, end_time)));
    mon_1.setBackgroundColor(Color.parseColor(databaseTimetable.Monday_Text_BG_Color(start_time, end_time)));
    mon_2.setBackgroundColor(Color.parseColor(databaseTimetable.Monday_Text_BG_Color(start_time, end_time)));
    return 2;
}
//0 am - 3 hr.
else if (!schedule_boolean_monday0.Monday_0_1() && !schedule_boolean_monday0.Monday_0_2() && schedule_boolean_monday0.Monday_0_3() && !schedule_boolean_monday0.Monday_0_4() && !schedule_boolean_monday0.Monday_0_5() &&
        !schedule_boolean_monday0.Monday_0_6() && !schedule_boolean_monday0.Monday_0_7()&& !schedule_boolean_monday0.Monday_0_8() && !schedule_boolean_monday0.Monday_0_9() && !schedule_boolean_monday0.Monday_0_10() &&
        !schedule_boolean_monday0.Monday_0_11() && !schedule_boolean_monday0.Monday_0_12() && !schedule_boolean_monday0.Monday_0_13() && !schedule_boolean_monday0.Monday_0_14() && !schedule_boolean_monday0.Monday_0_15() &&
        !schedule_boolean_monday0.Monday_0_16() && !schedule_boolean_monday0.Monday_0_17()&& !schedule_boolean_monday0.Monday_0_18() && !schedule_boolean_monday0.Monday_0_19() && !schedule_boolean_monday0.Monday_0_20() &&
        !schedule_boolean_monday0.Monday_0_21() && !schedule_boolean_monday0.Monday_0_22() && !schedule_boolean_monday0.Monday_0_23() && !schedule_boolean_monday0.Monday_0_24()){
    start_time = 0;
    end_time = 3;
    schedule_boolean_monday0.Monday_0_3();
    mon_1.setText(databaseTimetable.Monday_Title(start_time, end_time));
    mon_1.setTextColor(Color.parseColor(databaseTimetable.Monday_Text_Color(start_time, end_time)));
    mon_1.setBackgroundColor(Color.parseColor(databaseTimetable.Monday_Text_BG_Color(start_time, end_time)));
    mon_2.setBackgroundColor(Color.parseColor(databaseTimetable.Monday_Text_BG_Color(start_time, end_time)));
    mon_3.setBackgroundColor(Color.parseColor(databaseTimetable.Monday_Text_BG_Color(start_time, end_time)));
    return 3;
}

return 99;
}

}

这是一个指示布尔变量的类

public class Schedule_Boolean_Monday_0 {

private Context mContext;
private DatabaseTimetable databaseTimetable;

public Schedule_Boolean_Monday_0(Context context){
    this.mContext = context;
}

public Boolean Monday_0_1(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,1);
    return !result.equals("");
}

public Boolean Monday_0_2(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,2);
    return !result.equals("");
}

public Boolean Monday_0_3(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,3);
    return !result.equals("");
}

public Boolean Monday_0_4(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,4);
    return !result.equals("");
}

public Boolean Monday_0_5(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,5);
    return !result.equals("");
}

public Boolean Monday_0_6(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,6);
    return !result.equals("");
}

public Boolean Monday_0_7(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,7);
    return !result.equals("");
}

public Boolean Monday_0_8(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,8);
    return !result.equals("");
}

public Boolean Monday_0_9(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,9);
    return !result.equals("");
}

public Boolean Monday_0_10(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,10);
    return !result.equals("");
}

public Boolean Monday_0_11(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,11);
    return !result.equals("");
}

public Boolean Monday_0_12(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,12);
    return !result.equals("");
}

public Boolean Monday_0_13(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,13);
    return !result.equals("");
}

public Boolean Monday_0_14(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,14);
    return !result.equals("");
}

public Boolean Monday_0_15(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,15);
    return !result.equals("");
}

public Boolean Monday_0_16(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,16);
    return !result.equals("");
}

public Boolean Monday_0_17(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,17);
    return !result.equals("");
}

public Boolean Monday_0_18(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,18);
    return !result.equals("");
}

public Boolean Monday_0_19(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,19);
    return !result.equals("");
}

public Boolean Monday_0_20(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,20);
    return !result.equals("");
}

public Boolean Monday_0_21(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,21);
    return !result.equals("");
}

public Boolean Monday_0_22(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,22);
    return !result.equals("");
}

public Boolean Monday_0_23(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,23);
    return !result.equals("");
}

public Boolean Monday_0_24(){
    databaseTimetable = new DatabaseTimetable(mContext);
    String result = databaseTimetable.Monday_Title(0,0);
    return !result.equals("");
}

}

每个if / else-if参数中都有24个布尔变量。我认为转换为切换方法可能会为我的应用带来更好的性能，如果您有任何想法，我想听听您的建议。

问题来源：stackoverflow