我設法做什麼,我需要使用下面的代碼,有很多的if語句,但它的工作原理,希望這將幫助其他人需要它
- (void)drawRect:(CGRect)rect {
// Drawing code
[[UIColor greenColor] set];
[@"L" drawInRect:CGRectMake(0.0, 10.0, 10.0, 15.0) withFont:[UIFont boldSystemFontOfSize:[UIFont systemFontSize]] lineBreakMode:UILineBreakModeWordWrap alignment:UITextAlignmentCenter];
[@"R" drawInRect:CGRectMake(0.0, 35.0, 10.0, 15.0) withFont:[UIFont boldSystemFontOfSize:[UIFont systemFontSize]] lineBreakMode:UILineBreakModeWordWrap alignment:UITextAlignmentCenter];
CGRect tempLeftRect = CGRectMake(15, 10, kMeterViewFullWidth * leftValue, 15.0);
NSLog(@"%f", tempLeftRect.size.width);
CGRect tempRightRect = CGRectMake(15, 10, kMeterViewFullWidth * leftValue, 15.0);
NSLog(@"%f", tempRightRect.size.width);
if (tempLeftRect.size.width > 0) {
[self firstLeftBar];
}
if (tempLeftRect.size.width > 27) {
[self secondLeftBar];
}
if (tempLeftRect.size.width > 39) {
[self thirdLeftBar];
}
if (tempLeftRect.size.width > 51) {
[self forthLeftBar];
}
if (tempLeftRect.size.width > 63) {
[self fitfhLeftBar];
}
if (tempLeftRect.size.width > 75) {
[self sixthLeftBar];
}
if (tempLeftRect.size.width > 87) {
[self seventhLeftBar];
}
if (tempLeftRect.size.width > 99) {
[self eigthLeftBar];
}
if (tempLeftRect.size.width > 111) {
[self ninthLeftBar];
}
if (tempLeftRect.size.width > 123) {
[self tenthLeftBar];
}
if (tempLeftRect.size.width > 135) {
[self eleventhLeftBar];
}
if (tempLeftRect.size.width > 147) {
[self twelthLeftBar];
}
if (tempLeftRect.size.width > 159) {
[self thirteenthLeftBar];
}
if (tempLeftRect.size.width > 171) {
[self forteenthLeftBar];
}
if (tempLeftRect.size.width > 183) {
[self fitfhteenthLeftBar];
}
if (tempLeftRect.size.width > 195) {
[self sixteenthLeftBar];
}
if (tempLeftRect.size.width > 207) {
[self seventeenthLeftBar];
}
if (tempLeftRect.size.width > 219) {
[self eighteenthLeftBar];
}
if (tempLeftRect.size.width > 231) {
[self nineteenthLeftBar];
}
if (tempLeftRect.size.width > 243) {
[self twentyethLeftBar];
}
if (tempRightRect.size.width > 0) {
[self firstRightBar];
}
if (tempRightRect.size.width > 27) {
[self secondRightBar];
}
if (tempRightRect.size.width > 39) {
[self thirdRightBar];
}
if (tempRightRect.size.width > 51) {
[self forthRightBar];
}
if (tempRightRect.size.width > 63) {
[self fitfhRightBar];
}
if (tempRightRect.size.width > 75) {
[self sixthRightBar];
}
if (tempRightRect.size.width > 87) {
[self seventhRightBar];
}
if (tempRightRect.size.width > 99) {
[self eigthRightBar];
}
if (tempRightRect.size.width > 111) {
[self ninthRightBar];
}
if (tempRightRect.size.width > 123) {
[self tenthRightBar];
}
if (tempRightRect.size.width > 135) {
[self eleventhRightBar];
}
if (tempRightRect.size.width > 147) {
[self twelthRightBar];
}
if (tempRightRect.size.width > 159) {
[self thirteenthRightBar];
}
if (tempRightRect.size.width > 171) {
[self forteenthRightBar];
}
if (tempRightRect.size.width > 183) {
[self fitfhteenthRightBar];
}
if (tempRightRect.size.width > 195) {
[self sixteenthRightBar];
}
if (tempRightRect.size.width > 207) {
[self seventeenthRightBar];
}
if (tempRightRect.size.width > 219) {
[self eighteenthRightBar];
}
if (tempRightRect.size.width > 231) {
[self nineteenthRightBar];
}
if (tempRightRect.size.width > 243) {
[self twentyethRightBar];
}
/*
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(15.0, 10.0, kMeterViewFullWidth * leftValue, 15.0));
CGContextFillRect(context, CGRectMake(15.0, 35.0, kMeterViewFullWidth * rightValue, 15.0));
} else {
CGContextFillRect(context, CGRectMake(15.0, 10.0, kMeterViewFullWidthiPad * leftValue, 15.0));
CGContextFillRect(context, CGRectMake(15.0, 35.0, kMeterViewFullWidthiPad * rightValue, 15.0));
}
CGContextFlush(context);
*/
}
- (void)updateMeterWithLeftValue:(CGFloat)left rightValue:(CGFloat)right {
leftValue = left;
rightValue = right;
[self setNeedsDisplay];
}
-(void)firstLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(15.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)secondLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(27.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)thirdLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(39.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)forthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(51.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)fitfhLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(63.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)sixthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(75.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)seventhLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(87.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)eigthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(99.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)ninthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(111.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)tenthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(123.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)eleventhLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(135.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)twelthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(147.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)thirteenthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(159.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)forteenthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(171.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)fitfhteenthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(183.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)sixteenthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(195.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)seventeenthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(207.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)eighteenthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(219.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)nineteenthLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(231.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)twentyethLeftBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(243.0, 10.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)firstRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(15.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)secondRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(27.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)thirdRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(39.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)forthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(51.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)fitfhRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(63.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)sixthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(75.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)seventhRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(87.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)eigthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(99.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)ninthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(111.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)tenthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(123.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)eleventhRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(135.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)twelthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(147.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)thirteenthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(159.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)forteenthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(171.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)fitfhteenthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor greenColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(183.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)sixteenthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(195.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)seventeenthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(207.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)eighteenthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(219.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)nineteenthRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(231.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}
-(void)twentyethRightBar{
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
CGContextFillRect(context, CGRectMake(243.0, 35.0, 9.0, 15.0));
}
CGContextFlush(context);
}