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我是 iphone 开发的新手，但我以前做过 android。以下是我在 java 中所做的事情，我想将其转换为 iphone。

 public class RelationshipTipsActivity extends Activity implements
    OnClickListener {
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_MAX_OFF_PATH = 250;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
private GestureDetector gestureDetector;

View.OnTouchListener gestureListener;

String facts[] = {"Coming soon",
        "Coming soon", };

TextView display, display1;
TextView counter;
Button begin;
Button next;
Button previous;
Button random;
Random myRandom;

int index = facts.length;


/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(starting.rt.R.layout.relationship);

    AdView ad = (AdView) findViewById(R.id.ad);
    ad.loadAd(new AdRequest());

    display1 = (TextView) findViewById(starting.rt.R.id.Begin);
    display = (TextView) findViewById(starting.rt.R.id.tvResults);
    counter = (TextView) findViewById(starting.rt.R.id.tvCounter);
    next = (Button) findViewById(starting.rt.R.id.Next);
    previous = (Button) findViewById(starting.rt.R.id.Previous);
    random = (Button) findViewById(starting.rt.R.id.Random);

    next.setOnClickListener(this);
    previous.setOnClickListener(this);
    random.setOnClickListener(this);
    // display.setOnTouchListener(this.gestureListener);
    myRandom = new Random();

    // gestureDetector = new GestureDetector(new MyGestureDetector());
    // gestureListener = new View.OnTouchListener() {
    // public boolean onTouch(View v, MotionEvent event) {
    // return gestureDetector.onTouchEvent(event);
    // }

    // };
}



private void showDisplay() {
    display.setText(facts[index]);
    counter.setText(String.valueOf(index + 1) + "/"
            + String.valueOf(facts.length));
}

public void onClick(View arg0) {
    // TODO Auto-generated method stub
    switch (arg0.getId()) {
    case starting.rt.R.id.Next:
        index++;
        if (index > facts.length - 1) {
            index = 0;
        }
        showDisplay();

        break;

    case starting.rt.R.id.Previous:
        index--;
        if (index < 0) {
            index = facts.length - 1;
        }
        showDisplay();
        break;

    case starting.rt.R.id.Random:
        index = (myRandom.nextInt(facts.length) - 1);
        if (index < 0) {
            index = facts.length - 1;
        }
        showDisplay();
        break;

    }

}

}

您将如何将代码中的内容从 android 转换为 iphone。

到目前为止，我有这个适用于 iphone 的代码，我只是不知道从那里去哪里。

(IBAction) clicked:(id)sender{
NSArray *titleOfButton = [sender titleForState:UIControlStateNormal];
//NSString *newLabelText = [[NSString alloc]initWithFormat:@"%@", titleOfButton];
NSArray *initializedNSArray = [NSArray arrayWithObjects: @"red", 
                               @"blue", 
                               @"green", 
                               @"yellow", 
                               nil];
labelsText.text = initializedNSArray;
[initializedNSArray release];

}

我希望能够在 Iphone 视图中显示这些字符串。并且能够单击下一个或上一个按钮转到下一个或上一个字符串，可以是从蓝色到红色或红色到蓝色。基本上，如果有任何教程可以帮助我，或者如果您知道如何提供帮助，我将不胜感激。谢谢！

4

1 回答 1

1

为什么没有一个int变量与数组中字符串的当前位置和两个方法goPrev-goNext增加和减少int变量。

在界面中：

UIButton *btn;
int step;
NSArray *titles;

在实施中：

-(void)setup {
titles = [NSArray arrayWithObjects:@"Title 1",@"Title 2",@"Title 3",@"Title 4", nil];
btn = [UIButton buttonWithType:UIButtonTypeCustom];
}

-(void)goPrev {
if (step>0) {
    step--;
}
[btn setTitle:[titles objectAtIndex:step] forState:UIControlStateNormal];
}

-(void)goNext {
if (step<titles.count-1) {
    step++;
}
[btn setTitle:[titles objectAtIndex:step] forState:UIControlStateNormal];
}
于 2013-02-15T21:39:24.640 回答