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May 24, 2016 09:11
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working with spinners
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package com.packtpub.ltm; | |
import android.app.Activity; | |
import android.os.Bundle; | |
import android.view.View; | |
import android.widget.AdapterView; | |
import android.widget.ArrayAdapter; | |
import android.widget.Spinner; | |
public class priceList extends Activity implements AdapterView.OnItemSelectedListener{ | |
Spinner capacity; | |
Spinner speed; | |
Spinner hoistSpeed; | |
Spinner type; | |
String speedValue; | |
String capacityValue; | |
ArrayAdapter adapterTypeA; | |
ArrayAdapter adapterTypeB; | |
String[] speedArr; | |
String[] capacityArr; | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_price_list); | |
//Spinner for Capacity | |
capacity = (Spinner) findViewById(R.id.capacityTextView); | |
ArrayAdapter adapterCapa=ArrayAdapter.createFromResource(this,R.array.arrayCapacity, android.R.layout.simple_spinner_item); | |
capacity.setAdapter(adapterCapa); | |
capacityArr = getResources().getStringArray(R.array.arrayCapacity); | |
capacity.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { | |
@Override | |
public void onItemSelected(AdapterView<?> parent, View v, int position, long id) { | |
//This automatically gets your selected value | |
capacityValue = capacityArr[position]; | |
//Do your checks here, and set the next spinner, or reset the previous one. | |
} | |
@Override | |
public void onNothingSelected(AdapterView<?> arg0) { | |
// TODO Auto-generated method stub | |
} | |
}); | |
hoistSpeed = (Spinner) findViewById(R.id.hoistSpeedTextView); | |
//Spinner for the Speed | |
speed = (Spinner) findViewById(R.id.speedTextView); | |
ArrayAdapter adapterSpd = ArrayAdapter.createFromResource(this,R.array.arraySpeed, android.R.layout.simple_spinner_item); | |
speed.setAdapter(adapterSpd); | |
speedArr = getResources().getStringArray(R.array.arraySpeed); | |
speed.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { | |
@Override | |
public void onItemSelected(AdapterView<?> parent, View v, int position, long id) { | |
//This automatically gets your selected value | |
speedValue = speedArr[position]; | |
adapterTypeA=ArrayAdapter.createFromResource(priceList.this,R.array.arrayHoistSpeedSingle, android.R.layout.simple_spinner_item); | |
adapterTypeB=ArrayAdapter.createFromResource(priceList.this,R.array.arrayHoistSpeedDouble, android.R.layout.simple_spinner_item); | |
//Do your checks here, and set the next spinner, or reset the previous one. | |
if(capacityValue.equals("250") && speedValue.equals("Single Speed")){ | |
hoistSpeed.setAdapter(adapterTypeA); | |
} else if(speedValue.equals("Dual Speed")){ | |
hoistSpeed.setAdapter(adapterTypeB); | |
} | |
} | |
@Override | |
public void onNothingSelected(AdapterView<?> arg0) { | |
// TODO Auto-generated method stub | |
} | |
}); | |
} | |
Check my edit.
I think you should learn more on Java, there is no use helping you if you don't know Java itself !
I agree, I am working through a book as we speak. Thank you for your help on this.
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I see, that makes sense however I have the following errors.
Line 44 and 69 Error:
Variable accessed within inner class, needs to be declare final
I cant see there being a problem converting these to final unless you think other wise.
The following error seems more complex.
line 71 and 72 the keyword "this" is flagged as an error.
the message is pasted below: