对字符串使用 NumberPicker 小部件

String value = String.valueOf(picker.getValue());

You could mean something else, but it isn't very clear what you mean.

UPDATED:

You can fake it by setting your own formatter:

CountryFormatter implements Formatter {
public String toString(int value) {
switch(value) {
case 0:
return "England";
case 1:
return "France";
}
return "Unknown";
}
}


picker.setFormatter(new CountryFormatter());

getValue() will still return an int, so you probably want to map the names of countries to their ids.

ADDED: The implementation of NumberPicker has:

public void setRange(int start, int end, String[] displayedValues)

Which seems to do a better job of what you want then the above formatter.. although it isn't mentioned in the documentation so probably isn't part of the public api

NumberPicker picker = new NumberPicker(this);
picker.setMinValue(0);
picker.setMaxValue(2);
picker.setDisplayedValues( new String[] { "Belgium", "France", "United Kingdom" } );

NumberPicker numberPicker = new NumberPicker(this);
String[] arrayString= new String[]{"hakuna","matata","timon","and","pumba"};
numberPicker.setMinValue(0);
numberPicker.setMaxValue(arrayString.length-1);


numberPicker.setFormatter(new NumberPicker.Formatter() {
@Override
public String format(int value) {
// TODO Auto-generated method stub
return arrayString[value];
}
});

hope that helps!

try this solution, may help you

    NumberPicker pickers = new NumberPicker(this);
String[] arrayPicker= new String[]{"abc","def","ghi","jkl","mno"};


//set min value zero
pickers.setMinValue(0);
//set max value from length array string reduced 1
pickers.setMaxValue(arrayPicker.length - 1);
//implement array string to number picker
pickers.setDisplayedValues(arrayPicker);
//disable soft keyboard
pickers.setDescendantFocusability(NumberPicker.FOCUS_BLOCK_DESCENDANTS);
//set wrap true or false, try it you will know the difference
pickers.setWrapSelectorWheel(false);


//create button to test selected text string
btnPicker.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//get position (int) from number picker
int pos = pickers.getValue();
//get string from number picker and position
String selecPicker = arrayPicker[pos];
//test toast to get selected text string
Toast.makeText(context, selecPicker , Toast.LENGTH_SHORT).show();


}
});

This worked for me.

public class YourClassName extends AppCompatActivity {


NumberPicker picker = null;


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_activity_layout_file);


picker = (NumberPicker) findViewById(R.id.pickerId_From_your_Layout_file);


picker.setMinValue(0);
picker.setMaxValue(3);
picker.setDisplayedValues(new String[]{"English", "French","Kiswahili","عربى"});
}
}