自我LV1

這是TQC的102題，

程式碼為自行撰寫，

僅供參考。

 

其中可練習 spinner的設定，

事件處理。

 

package COM.TQC.GDD01;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.Toast;

public class GDD01 extends Activity {
	
	
	protected TextView MyOutcome,result;
	protected int volt;
	private Spinner mSpinner;
	private Button btn;
    private EditText editText1,editText2,editText3;
    double num=1;    
	static final String[] mDaysList=new String[] { 
        "110", "220"
    };
     

	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        

        finview();
        setspinner();
        setListeners();
        
 
    }

	public void finview()
	{
		mSpinner = (Spinner)findViewById(R.id.spinner1);
		btn = (Button) findViewById(R.id.button1);
    	editText1 = (EditText) findViewById(R.id.editText1);
    	editText2 = (EditText) findViewById(R.id.editText2);
    	editText3 = (EditText) findViewById(R.id.editText3);
    	result = (TextView) findViewById(R.id.textView6);

	}
	
	public void setspinner()
	{
		ArrayAdapter adapter=new ArrayAdapter(this, 
                android.R.layout.simple_spinner_item, mDaysList);			
		adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
		mSpinner.setAdapter(adapter);
		
		
	}
	
	public void setListeners()
	{
		mSpinner.setOnItemSelectedListener(new Spinner.OnItemSelectedListener()
		{

			@Override
			public void onItemSelected(AdapterView arg0, View arg1,
					int arg2, long arg3) {
				// TODO Auto-generated method stub
				Toast.makeText(GDD01.this, arg0.getSelectedItem().toString(), Toast.LENGTH_LONG).show();
				/*
				if(arg0.getSelectedItem().toString()=="110")
				{
					num=110;
            	}
				else if(arg0.getSelectedItem().toString()=="220")
				{
					num=220;
				}
				*/
				}

			@Override
			public void onNothingSelected(AdapterView arg0) {
				// TODO Auto-generated method stub
				
			}
			
		});
		
		btn.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				String checkv=mSpinner.getSelectedItem().toString();
	    		if (checkv.toString()=="110V")
	    		{num=110;}
	    		else if (checkv.toString()=="220V")
	    		{num=220;}
	    		double num1 = Double.parseDouble(editText1.getText().toString());
	    		double num2 = Double.parseDouble(editText2.getText().toString());
	    		double num3 = Double.parseDouble(editText3.getText().toString());
	    		double count=num*num1/1000*num2*num3;
	    		result.setText(String.valueOf(count));
			}
		});
	}
}

 

 

自我LV~