Problem in accessing value of global variable

[Madhu Nandan]

Hello,

Please go through the code below.

String[] Info contains 2 values like this: shiftDirection & 1 or currGear & 5 and similar pairs. If I receive shiftDirection & 0, I should display the previously received value of currGear. So I create PresentGear as a global variable and when currGear is received, I store it's value in PresentGear. Then when I receive shiftDirection & 0, I try to display PresentGear but nothing gets displayed. PresentGear is assigned no value. It would be very helpful if someone could suggest why this is happening or if my approach is wrong, kindly suggest an alternative way.

Cheers,
Madhu

public class Images extends Activity {
    /** Called when the activity is first created. */
	//LinearLayout mLinearLayout;
	//ImageView showImage;
	String PresentGear = "";
	
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);        
        
        Bundle extras = getIntent().getExtras();
        String[] Info = extras.getStringArray("MsgInfo");
        Log.d("TCP","in DA Images. Message name: " + Info[0] + ", value: " + Info[1]);
        if (Info[0].equals("currGear"))	{	
        	PresentGear = Info[1];
        	setContentView(R.layout.image);
        	TextView text_bottom = (TextView) findViewById(R.id.textView2);
        	text_bottom.setText(Info[1]);
        }
        Log.d("TCP","in DA Images. Present gear1: " + PresentGear);
        DataAction(Info[0], Info[1]);        
    }
    
    public void DataAction (String mName, String mVal)	{
    	String _mName = mName;
    	String _mVal = mVal;
    	     
        if (_mName.equals("shiftDirection") && _mVal.equals("1")) {
        	setContentView(R.layout.image);
        	//TextView text_top = (TextView) findViewById(R.id.textView1);
        	ImageView showImage = (ImageView) findViewById(R.id.imageView1);        	
        	//text_bottom.setText(Info[1]);
        	showImage.setImageResource(R.drawable.shift_up);        	
        } else if (_mName.equals("shiftDirection") && _mVal.equals("-1")) {
        	setContentView(R.layout.image);
        	//TextView text_bottom = (TextView) findViewById(R.id.textView2);
        	ImageView showImage = (ImageView) findViewById(R.id.imageView1);        	
        	//text_bottom.setText(Info[1]);
        	showImage.setImageResource(R.drawable.shift_down);        	
        } else if (_mName.equals("recomGear") && _mVal != null) {
        	Integer msgValue = Integer.parseInt(_mVal);
        	Integer CurrentGear = (msgValue) - 1;
        	Log.d("TCP","in DA Images. Current gear: " + CurrentGear);
        	String Gear = Integer.toString(CurrentGear);
        	setContentView(R.layout.image);
        	TextView text_top = (TextView) findViewById(R.id.textView1);
        	TextView text_bottom = (TextView) findViewById(R.id.textView2);
        	ImageView showImage = (ImageView) findViewById(R.id.imageView1);        	
        	showImage.setImageResource(R.drawable.shift_up);
        	text_bottom.setText(Gear);
        	text_top.setText(_mVal);
        //} //else if (_mName.equals("currGear") && _mVal != null) {
        	//PresentGear = _mVal;        	
        	//Log.d("TCP","in DA Images. Present gear1: " + PresentGear);
        	//setContentView(R.layout.image);
        	//TextView text_bottom = (TextView) findViewById(R.id.textView2);
        	//text_bottom.setText(_mVal);        	        	
        } else if (_mName.equals("shiftDirection") && _mVal.equals("0")) {
        	Log.d("TCP","in DA Images. Present gear: " + PresentGear);
        	setContentView(R.layout.image);
        	TextView text_bottom = (TextView) findViewById(R.id.textView2);
        	TextView text_top = (TextView) findViewById(R.id.textView1);
        	text_top.setText("Go on");  
        	text_bottom.setText(PresentGear);       	
        }        
    }
}

[Peter Johnson]

Appears to be a duplicate post of http://www.coderanch.com/t/525700/Android/Mobile/Android-Cannot-show-more-than, closing.