[英]If condition on Spinner drop-down list
I made a drop-down list using spinner but now I want and a specific message to display when a certain value is selected along with an EditText when a certain keyword is entered.我使用微调器创建了一个下拉列表,但现在我希望在选择某个值时显示一条特定消息,并在输入某个关键字时显示一个 EditText。 I attempted using if condition but it didn't work.我尝试使用 if 条件,但它不起作用。 The scenario is like this: When the user input their age
over 18 and selects "Yes" from the drop-down hire
, a certain message will appear, both conditions must be satisfied场景是这样的:当用户输入自己的age
超过 18 岁并从下拉hire
中选择“是”时,会出现一条消息,必须同时满足两个条件
public void stan(View hiring){
ArrayAdapter<CharSequence> hire=ArrayAdapter.createFromResource(this,R.array.decide, android.R.layout.simple_spinner_item);
hire.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(hire);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String decide =spinner.getSelectedItem().toString()
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
int age= Integer.parseInt(aged.getText().toString());
if(age>18 && spinner.equals("Yes")){
Toast.makeText(this,"Ok, go eat cabbage sauce",Toast.LENGTH_LONG).show();
}else{
Toast.makeText(this,"no",Toast.LENGTH_LONG).show();
}
Try this尝试这个
public void stan(View hiring){
ArrayAdapter<CharSequence> hire=ArrayAdapter.createFromResource(this,R.array.decide, android.R.layout.simple_spinner_item);
hire.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(hire);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String decide =spinner.getSelectedItem().toString();
int age= Integer.parseInt(aged.getText().toString());
if(age>18 && decide.equals("Yes")){
Toast.makeText(this,"Ok, go eat cabbage sauce",Toast.LENGTH_LONG).show();
}else{
Toast.makeText(this,"no",Toast.LENGTH_LONG).show();
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
Use spinner.getSelectedItem().toString()
使用spinner.getSelectedItem().toString()
Finally, Your condition will be最后,您的情况将是
if(age>18 && spinner.getSelectedItem().toString().equals("Yes")){
Toast.makeText(YourActivityName.this,"Ok, go eat cabbage sauce",Toast.LENGTH_LONG).show();
}else{
Toast.makeText(YourActivityName.this,"no",Toast.LENGTH_LONG).show();
}
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