在ios 7的模拟器中,选择一个输入框准备输入时,会触发这个错误,以下是出错详细日志: <Error>: CGContextSetBlendMode: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of s…
在ios 7的模拟器中,选择一个输入框准备输入时,会触发这个错误,以下是出错详细日志: <Error>: CGContextSetBlendMode: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of s…
一.问题描述 下载图片,然后用Quartz2D绘制缩放的图片,运行无法显示图片并且编译器警告: Aug 18 21:41:50 02_计算UITableViewCell的行高[16777] <Error>: CGContextSaveGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.Aug 18 2…
最近在测试的过程中, 发现了SpringBoar的一个问题: SpringBoard[53] <Error>: CGContextTranslateCTM: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable. 同时也发现了应用有类型的问题: Aug 6 13:11:50 Tour1[17353] <Erro…
遇到这个问题找了好久答案,最后排错排出来了 CGContextSaveGState: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. T…
在展示图片或者做二维码的时候,若是宽或者高有一个为零的情况就会报错:CGBitmapContextCreateImage: invalid context 0x0. If you want to see the backtrace, please set CG_CON 解决的办法:逻辑判断当为零的时候给一个值就OK了…
转自这里 出 错原因:设置app的状态栏样式的使用使用了旧的方式,在info.plist里面设置了View controller- based status bar appearance为NO,默认为YES,一般式iOS6的时候使用这种方式,iOS7,8也兼容,但是到了 iOS9就报了警告.修改方式将View controller-based status bar appearance设置为YES,然后使用新的方 式来实现状态栏的样式. ios7之后的方法 - (UIStatusBarSty…
方案商的开发板上otg功能只能做device,硬件看过后说没有5v供电,加上后能够识别U盘了,但是内核报了错 [ 3.264000] usb 2-1: new high-speed USB device number 2 using dwc_otg[ 3.280000] BUG: sleeping function called from invalid context at mm/page_alloc.c:2444[ 3.284000] in_atomic(): 1, irqs_disable…
