iOS learning-Create an underlined button

1UIButton *tempbtn =[UIButton Buttonwithtype:uibuttontypecustom];2Tempbtn.frame = CGRectMake ( -, -, the, +);3 4nsmutableattributedstring *str = [[Nsmutableattributedstring alloc] initwithstring:@"Forgot Password"];5Nsrange Strrange = {0, [str

How iOS iterates through arrays

There are currently seven ways to knowFirst Type [arr enumerateobjectsusingblock: ^ (id obj, Nsuinteger idx, BOOL *stop) {NSLog (@ "%ld,%@", Idx,[arr Objectati NDEX:IDX]); }]; The second type of dispatch_apply ([arr Count], dispatch_get_global_

Android ScrollView with Viewpager swipe up and down left and right conflict

Rewrite ScrollViewpublic class Customscrollview extends ScrollView {Private Gesturedetector Mgesturedetector;View.ontouchlistener Mgesturelistener;Public Customscrollview (context context, AttributeSet Attrs) {Super (context, attrs);Mgesturedetector

IOS Some phenomena and workarounds

1, after iOS7 with ScrollView of the page returned when the overall will fall 45 of the height of the reason: iOS comes with the optimization (also calculate the bug), the solution is as follows: Self.automaticallyadjustsscrollviewinsets = no;

"Learning iOS Path: object-c error" Collection <__NSArrayM:0xb550c30> was mutated while being enumerated.

Error message:Cause of Error:Crashes when the program performs a traversal and modifies the contents of the array at the same time.Here's how to fix it:Method 1: define an identical array, iterate over the new array, and modify the original

iOS navigation page

//APPDELEGATE.M#import "AppDelegate.h"#import "ViewController.h"@interface appdelegate()@end@implementationappdelegate-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (Nsdictionary *) launchOptions {CGRect rect =

"Android" ListView monitor Up and down swipe (judging whether to show back top button)

Set the scrolling monitor to determine the scroll direction of the ListView while getting the screen height, the actual height of the ListView, to determine if it is necessary to show back the top button (see Code for specific logic-with detailed

IOS Uiscrollview Detailed & Picture zoom feature

A brief introduction to UiscrollviewUiscrollview is a scroll-capable view control that can be scrolled to show the class capacity. Two Uiscrollview Common PropertiesSet the position of the Uiscrollview scroll @property (nonatomic) Cgpoint

Android ListView Optimizer How to omit the Viewholder method

Code:public class Viewholder { /** * @param view converview * @param ID control's ID * @return return ; * /public static T get (view view, int id) { sparsearray Viewholder = (Sparsearr ay) View.gettag (); if

iOS Development-cocos2d-x Adaptation iphone6

Long time no cocos2d-x. Today, the pain of the egg back to play.Simply say yourself to solve the problem of iphone5 adaptation, the method is very stupid, but quite simple.1. Add the following code to the rootviewcontroller.mm file in the iOS

CodeSign Error:code signing is required for product type application in SDK IOS

In the case of a real machine test, there is a sudden error, code signing is required for product type ' application ' in SDK ' IOS 7.0 ', which means the code signing certificate is wrong.Solutions,1. Select the project->build Settings, code

Android Direction sensor (Sensor_type_orientation)

Sensor_type_orientation This Android 2.2 is not recommended!!! Phone status Numeric status Range of values The phone is placed horizontally, the top point is North Square The x, y, and z direction values are 0

Android Studio (i) Configure Android Studio

First, downloadIt is recommended to download the latest version directly on Google developers. Because Android studio still has a lot of problems, using the new version, the bug is relatively small.Second, upgradeHelp->check for UpdateThird, set the

New Apple patent: MEMS for fast, efficient autofocus of iphone

Chrome 34.0.1847.116 Mac OS X 10.9.2While IOS devices currently use traditional voice coil motors for camera autofocus, today's patents show that Apple is studying the use of a unique MEMS (microcomputer) system solution for fast and efficient

Android APK Anti-compilation

One. Anti-compilation apk get Java source codeReprinted from: http://hi.baidu.com/%CB%BF%D4%B5%CC%EC%CF%C2/blog/item/2284e2debafc541e495403ec.htmltool Download : Need to Dex2jar and Jd-gui these 2

Basic use of viewpager+fragment in Android

These days learned the basic use of Viewpager+fragement and wrote a demo. Now put the code on and on. The first is the layout file                                                                    2.mainactivity.java Mainactivity

Android to determine whether to connect

The following method returns false to indicate that the network is not through//Detect network public static Boolean checknetworkavailable (context context) {Connectivitymanager Connectivity = (Connectivitymanager) context.getsystemservice

The Bounce property of ScrollView in iOS and the Clipstobounds property in view

One: ScrollView's Bounce propertyWhen the ScrollView scroll to the boundary, and then continue to scroll will have a rebound effect, ScrollView has bounce property, when set to Yes, can rebound, set to no bounce, ask, can make it only one boundary

Using Cydia substrate to implement Android hooks

Using Cydia substrate to implement Android hooks, the article comes from an official tutorial.1, install Cydia substrate frame apk, the phone must be root.2, code writing;In the manifest file, declare the following:application

IOS UITableView Reload Refresh a cell or section

We usually refresh the entire list using [Self.tableview reloaddata];Sometimes it's just a row or a section that changes, so just update the line.// a section refresh int section_index=ten; // Update 11th Sectioin [Self.tableview

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