通过qtmobility 获取设备的电量
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| − | [[Category:PIM]][[Category: | + | {{ArticleMetaData |
| + | |sourcecode= <!-- Link to example source code e.g. [[Media:The Code Example ZIP.zip]] --> | ||
| + | |installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) --> | ||
| + | |devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') --> | ||
| + | |sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) --> | ||
| + | |platform= <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later --> | ||
| + | |devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) --> | ||
| + | |dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 --> | ||
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| + | |capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. --> | ||
| + | |keywords= <!-- APIs, classes and methods (e.g. QSystemScreenSaver, QList, CBase --> | ||
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| + | |language=Lang-Chinese | ||
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| + | |creationdate=20101227 | ||
| + | |author=[[User:Vipwx]] | ||
| + | }} | ||
| + | |||
| + | [[Category:PIM]][[Category:Qt]][[Category:Lang-Chinese]][[Category:Qt Mobility]] | ||
== 概述 == | == 概述 == | ||
qtmobility 提供了QSystemDeviceInfo这个类，我们可以很简单的获得设备的一些信息 | qtmobility 提供了QSystemDeviceInfo这个类，我们可以很简单的获得设备的一些信息 | ||
| Line 6: | Line 30: | ||
== 编辑pro文件 == | == 编辑pro文件 == | ||
| − | <code cpp> | + | <code cpp-qt> |
CONFIG += mobility | CONFIG += mobility | ||
MOBILITY = systeminfo | MOBILITY = systeminfo | ||
| Line 15: | Line 39: | ||
如果你是在Symbian上的话还需要添加下面信息 | 如果你是在Symbian上的话还需要添加下面信息 | ||
| − | <code cpp>symbian { | + | <code cpp-qt>symbian { |
TARGET.UID3 = 0xed0c3660 | TARGET.UID3 = 0xed0c3660 | ||
# TARGET.CAPABILITY += | # TARGET.CAPABILITY += | ||
| Line 38: | Line 62: | ||
==添加代码== | ==添加代码== | ||
首先在.h文件 | 首先在.h文件 | ||
| − | <code cpp>#include <QSystemInfo></code> | + | <code cpp-qt>#include <QSystemInfo></code> |
然后在添加一个mobility name space | 然后在添加一个mobility name space | ||
| − | <code cpp>QTM_USE_NAMESPACE</code> | + | <code cpp-qt>QTM_USE_NAMESPACE</code> |
然后在class里面添加一个函数和一个成员 | 然后在class里面添加一个函数和一个成员 | ||
| − | <code cpp>void setupGeneral(); | + | <code cpp-qt>void setupGeneral(); |
QSystemDeviceInfo *deviceInfo</code> | QSystemDeviceInfo *deviceInfo</code> | ||
至此头文件改动完毕 | 至此头文件改动完毕 | ||
CPP文件： | CPP文件： | ||
| − | <code cpp>void BatteryIndicator::setupGeneral() | + | <code cpp-qt>void BatteryIndicator::setupGeneral() |
{ | { | ||
deviceInfo = new QSystemDeviceInfo(this); | deviceInfo = new QSystemDeviceInfo(this); | ||
| Line 58: | Line 82: | ||
然后在构造的时候调用这个函数，代码如下 | 然后在构造的时候调用这个函数，代码如下 | ||
| − | <code cpp>BatteryIndicator::BatteryIndicator(QWidget *parent) : | + | <code cpp-qt>BatteryIndicator::BatteryIndicator(QWidget *parent) : |
QDialog(parent), | QDialog(parent), | ||
ui(new Ui::BatteryIndicator), | ui(new Ui::BatteryIndicator), | ||
| Line 69: | Line 93: | ||
OK 已经完成了，很简单吧。编译看看效果 | OK 已经完成了，很简单吧。编译看看效果 | ||
| − | [[File:Qtmobility2.jpg]] | + | [[File:Qtmobility2.jpg]][[Category:MeeGo Harmattan]] [[Category:Symbian]] |
| − | [[Category: | + | |
Latest revision as of 04:19, 11 October 2012
文章信息
Contents |
概述
qtmobility 提供了QSystemDeviceInfo这个类，我们可以很简单的获得设备的一些信息
然后我们可以利用Qt Creato 的UI编辑器拖动Progress Bar 来展示出来。
编辑pro文件
CONFIG += mobility
MOBILITY = systeminfo
MOBILITY = systeminfo 说明我们是想要获取系统的信息
如果你是在Symbian上的话还需要添加下面信息
symbian {
TARGET.UID3 = 0xed0c3660
# TARGET.CAPABILITY +=
TARGET.EPOCSTACKSIZE = 0x14000
TARGET.EPOCHEAPSIZE = 0x020000 0x800000
}
UID3 这些你在创建工程的时候选择 创建mobile工程就会自动生成，当然你需要安装Symbian SDK
编辑界面
然后我们可以添加一个进度条来显示当前电量
选中Qt Creator里面你的工程的Edit 然后打开UI设计器
如图所示添加一个Progress Bar 设置 objectName 为 batteryLevelBar
简单界面完成
添加代码
首先在.h文件
#include <QSystemInfo>然后在添加一个mobility name space
QTM_USE_NAMESPACE
然后在class里面添加一个函数和一个成员
void setupGeneral();
QSystemDeviceInfo *deviceInfo
至此头文件改动完毕 CPP文件：
void BatteryIndicator::setupGeneral()
{
deviceInfo = new QSystemDeviceInfo(this);
ui->batteryLevelBar->setValue(deviceInfo->batteryLevel());
connect(deviceInfo, SIGNAL(batteryLevelChanged(int)),
ui->batteryLevelBar, SLOT(setValue(int)));
}
然后在构造的时候调用这个函数，代码如下
效果
OK 已经完成了，很简单吧。编译看看效果
