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How to check programmatically if an application is installed or not in Android?
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@Aerrow.. Suppose i am checking my .apk is installed or nor ? at time of installation... I am getting same exception while checking my package com.test.installedornot.My .apk size is more than 9MB then in that case how i will manage this exception?
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How to get RelativeLayout working with merge and include?
...positioned):
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<include android:id="@+id/header" layout="@layout/header"
android:layout_alignParentTop="true" />
<WebVi...
fatal error: Python.h: No such file or directory
...n2.x installs
sudo zypper in python3-devel # for python3.x installs
For apk (Alpine...):
# This is a departure from the normal Alpine naming
# scheme, which uses py2- and py3- prefixes
sudo apk add python2-dev # for python2.x installs
sudo apk add python3-dev # for python3.x installs
For apt...
boost::filesystem指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...方面不能做可移植性，尽管标准库有几个函数用于操作与文件系统相关的任务，但是这几个函数作用相对我们日常对文件系统操作的需求来说真是杯水车薪，所以对目录、路径、文件元信息的操作一直难以做可移植性。然而对于...
C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...crash掉你的程序。@Laruence 说这个是个经典的坑，我觉得这怎么会是经典的坑呢？上面这代码，你一定会问，为什么if语句判断的不是f.a？而是f.a里面的数组？写这样代码的人脑子里在想什么？还是用这样的代码来玩票？不管怎么...
C++ 打开文件，以清空覆盖的方式 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ 打开文件，以清空覆盖的方式cpp_fstream_trunc_out_inC++ 打开文件，以清空覆盖的方式，代码如下：std::unique_ptr<ostream> stream = std::make_unique<fstream>("xxx", ios::trunc | ios::out | ios::in);*stream << "co C++ 打开文件，以清空覆盖的方式，代码如...
VC菜单命令详解(文件打开、保存与关闭) - C/C++ - 清泛网 - 专注C/C++及内核技术
VC菜单命令详解(文件打开、保存与关闭)第一部分：五个命令ID： 处理函数ID_FILE_NEW CWinApp::OnFileNewID_FILE_OPEN CWinApp::OnFileOpenID_FILE_SAVE CDocument::OnFileSav...第一部分：
五个命令ID： 处理函数
ID_FILE_NEW CWinApp::OnFileNew
ID_FILE_OPEN C...
How to make gradient background in android
... encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<gradient
android:type="linear"
android:angle="0"
android:startColor="#f6ee19"
android:endColor="#115ede" />
</shape>
You set it to the background of some...
Android ListView headers
...ng="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<TextView
style="?android:attr/listSeparatorTextViewStyle"
an...
Android: how to draw a border to a LinearLayout
...om_background.xml as:
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners
android:radius="2dp"
android:topRightRadius="0dp"
android:bottomRightRadius="0dp"
android:bottomLeftRadius="0dp" />
<stroke
...