Android 如何删除微调器的默认选择?
我是萨尔曼·阿姆贾德 我在我的应用程序中使用了两个微调器,并且在每个选择上都使用了if-else结构……但是当应用程序加载时,默认的选择条件会执行……我想删除默认的选择,你的任何一个都可以在这个规则中帮我吗???? 此外,frst条件在frst时不执行Android 如何删除微调器的默认选择?,android,android-widget,Android,Android Widget,我是萨尔曼·阿姆贾德 我在我的应用程序中使用了两个微调器,并且在每个选择上都使用了if-else结构……但是当应用程序加载时,默认的选择条件会执行……我想删除默认的选择,你的任何一个都可以在这个规则中帮我吗???? 此外,frst条件在frst时不执行 convertto.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(A
convertto.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View v1,
int index1, long arg3) {
//from meters
var1=Double.parseDouble(lvalue.getText().toString());
var2=var1;
if ((quantity[index1]=="Meter") && (s1.equalsIgnoreCase("Meter") ))
{
Toast.makeText(v1.getContext(), " to meter",Toast.LENGTH_SHORT).show();
var2=var1;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Inches") && (s1.equalsIgnoreCase("Meter")))
{
Toast.makeText(v1.getContext(), " to inches",Toast.LENGTH_SHORT).show();
var2=var1 * 39.3700787;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Feet") && (s1.equalsIgnoreCase("Meter")))
{
Toast.makeText(v1.getContext(), " to Feet",Toast.LENGTH_SHORT).show();
var2=var1 * 3.281;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Yards") && (s1.equalsIgnoreCase("Meter")))
{
Toast.makeText(v1.getContext(), " to Yards",Toast.LENGTH_SHORT).show();
var2=var1 * 1.0936133 ;
lresult.setText("" + var2);
}
}
}
//from inches
if ((quantity[index1]=="Meter") && (s1.equalsIgnoreCase("Inches")))
{
Toast.makeText(v1.getContext(), " to meter",Toast.LENGTH_SHORT).show();
var2=var1/39.3700787;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Inches") && (s1.equalsIgnoreCase("Inches")))
{
Toast.makeText(v1.getContext(), " to inches",Toast.LENGTH_SHORT).show();
var2=var1;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Feet") && (s1.equalsIgnoreCase("Inches")))
{
Toast.makeText(v1.getContext(), " to Feet",Toast.LENGTH_SHORT).show();
var2=var1/12;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Yards") && (s1.equalsIgnoreCase("Inches")))
{
Toast.makeText(v1.getContext(), " to Yards",Toast.LENGTH_SHORT).show();
var2 = var1/36;
lresult.setText("" + var2);
}
}
}
//from feet
if ((quantity[index1]=="Meter") && (s1.equalsIgnoreCase("Feet")))
{
Toast.makeText(v1.getContext(), " to meter",Toast.LENGTH_SHORT).show();
var2=var1/3.281;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Inches") && (s1.equalsIgnoreCase("Feet")))
{
Toast.makeText(v1.getContext(), " to inches",Toast.LENGTH_SHORT).show();
var2=var1*12;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Feet") && (s1.equalsIgnoreCase("Feet")))
{
Toast.makeText(v1.getContext(), " to Feet",Toast.LENGTH_SHORT).show();
var2=var1;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Yards") && (s1.equalsIgnoreCase("Feet")))
{
Toast.makeText(v1.getContext(), " to Yards",Toast.LENGTH_SHORT).show();
var2 = var1/3;
lresult.setText("" + var2);
}
}
}
//from yards
if ((quantity[index1]=="Meter") && (s1.equalsIgnoreCase("Yards")))
{
Toast.makeText(v1.getContext(), " to meter",Toast.LENGTH_SHORT).show();
var2=var1/1.0936133;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Inches") && (s1.equalsIgnoreCase("Yards")))
{
Toast.makeText(v1.getContext(), " to inches",Toast.LENGTH_SHORT).show();
var2=var1*36;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Feet") && (s1.equalsIgnoreCase("Yards")))
{
Toast.makeText(v1.getContext(), " to Feet",Toast.LENGTH_SHORT).show();
var2=var1*3;
lresult.setText("" + var2);
}
else{
if ((quantity[index1]=="Yards") && (s1.equalsIgnoreCase("Yards")))
{
Toast.makeText(v1.getContext(), " to Yards",Toast.LENGTH_SHORT).show();
var2 = var1;
lresult.setText("" + var2);
}
}
}
}
}
}
}
}
convertto.setOnItemSelectedListener(新的OnItemSelectedListener(){
@凌驾
已选择公共视图(AdapterView arg0,视图v1,
int index1,长arg3){
//从米开始
var1=Double.parseDouble(左值.getText().toString());
var2=var1;
如果((数量[index1]=“米”)&&(s1.等信号情况(“米”))
{
Toast.makeText(v1.getContext(),“to meter”,Toast.LENGTH_SHORT.show();
var2=var1;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“英寸”)&&(s1.等信号情况(“米”))
{
Toast.makeText(v1.getContext(),“至英寸”,Toast.LENGTH_SHORT.show();
var2=var1*39.3700787;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“英尺”)&&(s1.等信号情况(“米”))
{
Toast.makeText(v1.getContext(),“toft”,Toast.LENGTH_SHORT.show();
var2=var1*3.281;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“码数”)和&(s1.等信号情况(“米”))
{
Toast.makeText(v1.getContext(),“toyards”,Toast.LENGTH_SHORT.show();
var2=var1*1.0936133;
lresult.setText(“+var2”);
}
}
}
//英寸
如果((数量[index1]=“米”)&&(s1.等信号情况(“英寸”))
{
Toast.makeText(v1.getContext(),“to meter”,Toast.LENGTH_SHORT.show();
var2=var1/39.3700787;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“英寸”)&&(s1.等信号情况(“英寸”))
{
Toast.makeText(v1.getContext(),“至英寸”,Toast.LENGTH_SHORT.show();
var2=var1;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“英尺”)&&(s1.等信号情况(“英寸”))
{
Toast.makeText(v1.getContext(),“toft”,Toast.LENGTH_SHORT.show();
var2=var1/12;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“码”)&&(s1.等信号情况(“英寸”))
{
Toast.makeText(v1.getContext(),“toyards”,Toast.LENGTH_SHORT.show();
var2=var1/36;
lresult.setText(“+var2”);
}
}
}
//从脚
如果((数量[index1]=“米”)&&(s1.等信号情况(“英尺”))
{
Toast.makeText(v1.getContext(),“to meter”,Toast.LENGTH_SHORT.show();
var2=var1/3.281;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“英寸”)&&(s1.等信号情况(“英尺”))
{
Toast.makeText(v1.getContext(),“至英寸”,Toast.LENGTH_SHORT.show();
var2=var1*12;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“英尺”)&&(s1.等信号情况(“英尺”))
{
Toast.makeText(v1.getContext(),“toft”,Toast.LENGTH_SHORT.show();
var2=var1;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“码”)&&(s1.等信号情况(“英尺”))
{
Toast.makeText(v1.getContext(),“toyards”,Toast.LENGTH_SHORT.show();
var2=var1/3;
lresult.setText(“+var2”);
}
}
}
//从院子里
如果((数量[index1]=“米”)&&(s1.等效信号(“码”))
{
Toast.makeText(v1.getContext(),“to meter”,Toast.LENGTH_SHORT.show();
var2=var1/1.0936133;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“英寸”)&&(s1.等信号情况(“码”))
{
Toast.makeText(v1.getContext(),“至英寸”,Toast.LENGTH_SHORT.show();
var2=var1*36;
lresult.setText(“+var2”);
}
否则{
如果((数量[index1]=“英尺”)&&(s1.等信号情况(“码”))
{
Toast.makeText(v1.getContext(),“toft”,Toast.LENGTH_SHORT.show();
var2=var1*3;
int spinner_counter = 1, spinnner_selected = 0; // declare globally
@Override
public void onItemSelected(AdapterView<?> arg0, View v1,
int index1, long arg3) {
if(spinnner_selected < spinner_counter){
spinnner_selected++;
}
else{
//execute your code here
}
}