http://developer.android.com/guide/practices/ui_guidelines/widget_design.html#design

http://developer.android.com/guide/topics/appwidgets/index.html

http://developer.android.com/guide/topics/appwidgets/host.html

http://www.cnblogs.com/alwaysyouare/archive/2010/01/06/1640219.html   
digitalclock Widget

Declaring an App Widget in the Manifest

First, declare the AppWidgetProvider class in yourapplication'sAndroidManifest.xml file. For example:

<receiver android:name="ExampleAppWidgetProvider" >

    <intent-filter>

        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />

    </intent-filter>

    <meta-data android:name="android.appwidget.provider"

               android:resource="@xml/example_appwidget_info" />

</receiver>

Adding the AppWidgetProviderInfo Metadata

The AppWidgetProviderInfo defines the essential qualities of an App Widget, such as its minimum layout dimensions,
its initiallayout resource,how often to update the App Widget, and (optionally) a configuration Activity tolaunch at create-time.Define the AppWidgetProviderInfo object in an XML resource using a single<appwidget-provider> element and save it
in the project'sres/xml/ folder.

For example:

<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"

    android:minWidth="40dp"

    android:minHeight="40dp"

    android:updatePeriodMillis="86400000"

    android:previewImage="@drawable/preview"

    android:initialLayout="@layout/example_appwidget"

    android:configure="com.example.android.ExampleAppWidgetConfigure"

    android:resizeMode="horizontal|vertical"

    android:widgetCategory="home_screen|keyguard"

    android:initialKeyguardLayout="@layout/example_keyguard">

</appwidget-provider>

The updatePeriodMillis attribute defines how often the AppWidget framework should request an update from theAppWidgetProvider
by calling theonUpdate() callback
method. The actual updateis not guaranteed to occur exactly on time with this value and we suggestupdating as infrequently as possible—perhaps no more than once an hour toconserve the battery. You might also allow the user to adjust the frequency in aconfiguration—some
people might want a stock ticker to update every 15minutes, or maybe only four times a day.

Note: If the device is asleep when itis time for an update (as defined byupdatePeriodMillis), then the device willwake up in order to perform the update. If you don't update more than once per hour, thisprobably
won't cause significant problems for the battery life.If, however, you needto update more frequently and/or you do not need to update while the device is asleep,then you can instead perform updates based on an alarm that
will not wake the device. To doso, set an alarm with an Intent that your AppWidgetProvider receives, using theAlarmManager. Set
the alarm type to eitherELAPSED_REALTIME orRTC,
which will only deliver the alarm when the device is awake. Then setupdatePeriodMillis to zero ("0").

Creating the App Widget Layout

You must define an initial layout for your App Widget in XML and save it inthe project'sres/layout/ directory. You can design your App Widget using theView objects listedbelow, but before you begin designing your App Widget, please read andunderstand
theApp WidgetDesign Guidelines.

# of Cells

(Columns or Rows)		 Available Size (dp)

(minWidth or minHeight)
1 40dp
2 110dp
3 180dp
4 250dp
… …
n 70 × n − 30

Using the AppWidgetProvider Class

You must declare your AppWidgetProvider class implementation as abroadcast receiver using the<receiver> element in the AndroidManifest (seeDeclaring
an App Widget in the Manifest above).

The AppWidgetProvider class extendsBroadcastReceiver as a convenienceclass to handle the App Widget broadcasts. The
AppWidgetProvider receives onlythe event broadcasts thatare relevant to the App Widget, such as when the App Widget is updated, deleted,enabled, and disabled.When these broadcast events occur, the AppWidgetProvider receives the followingmethod calls:

onUpdate()
This is called to update the App Widget at intervals defined by theupdatePeriodMillis attribute in the AppWidgetProviderInfo (seeAdding
the AppWidgetProviderInfo Metadata above). This method is also called when the user adds the App Widget, so it should perform the essential setup, such as define event handlers for Views and start a temporaryService,
if necessary. However, if you have declared aconfiguration Activity,this method is not called when the user adds theApp Widget, but is called for the subsequent updates. It is the responsibility of the configuration Activity to perform the
first update when configuration isdone. (SeeCreating an App Widget ConfigurationActivity below.)

The most important AppWidgetProvider callback is onUpdate()
because it is called wheneach App Widget is added to a host (unless you use a configuration Activity). Ifyour App Widget accepts any user interaction events, then you need to registerthe event handlers in this callback. If your App Widget doesn't create temporaryfiles
or databases, or perform other work that requires clean-up, then onUpdate()
may be the only callbackmethod you need to define. For example, if you want an App Widget with a buttonthat launches an Activity when clicked, you could use the followingimplementation of AppWidgetProvider:

public class ExampleAppWidgetProvider extends AppWidgetProvider {

    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {

        final int N = appWidgetIds.length;

        // Perform this loop procedure for each App Widget that belongs to this provider

        for (int i=0; i<N; i++) {

            int appWidgetId = appWidgetIds[i];

            // Create an Intent to launch ExampleActivity

            Intent intent = new Intent(context, ExampleActivity.class);

            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);

            // Get the layout for the App Widget and attach an on-click listener

            // to the button

            RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.appwidget_provider_layout);

            views.setOnClickPendingIntent(R.id.button, pendingIntent);

            // Tell the AppWidgetManager to perform an update on the current app widget

            appWidgetManager.updateAppWidget(appWidgetId, views);

        }

    }

}

This AppWidgetProvider defines only the onUpdate()
method for the purpose ofdefining a PendingIntent that launches anActivity
and attaching it to the App Widget's button withsetOnClickPendingIntent(int,
PendingIntent). Noticethat it includes a loop that iterates through each entry inappWidgetIds, which is an array of IDs that identify each AppWidget created by this provider. In this way, if the user creates more than oneinstance of
the App Widget, then they are all updated simultaneously. However,only one
updatePeriodMillis schedule will be managed for allinstances of the App Widget. For example, if the update schedule is defined tobe every two hours, and a second instance of the App Widget is added one hourafter the first one, then they will both be
updated on the period defined by thefirst one and the second update period will be ignored (they'll both be updatedevery two hours, not every hour).

Note: Because AppWidgetProvider is an extension ofBroadcastReceiver,
your process is not guaranteed to keeprunning after the callback methods return (seeBroadcastReceiver for information about
the broadcastlifecycle). If your App Widget setup process can take several seconds (perhapswhile performing web requests) and you require that your process continues,consider starting aService
in theonUpdate() method. From within
the Service, you can perform your own updatesto the App Widget without worrying about the AppWidgetProvider closing down dueto anApplicationNot Responding
(ANR) error. See the Wiktionary sample's AppWidgetProvider for an example of an App Widget running aService.

Also see the ExampleAppWidgetProvider.javasample class.

Receiving App Widget broadcast Intents

AppWidgetProvider is just a convenience class. Ifyou would liketo receive the App Widget broadcasts directly, you can
implement your own BroadcastReceiver or override theonReceive(Context,
Intent) callback. The Intents you need to care about are as follows:

note: you can get appWidgetIds from broadcast intents of ACTION_APPWIDGET_UPDATE
as below:

                final int[] appWidgetIds = intent.getExtras().getIntArray(AppWidgetManager.EXTRA_APPWIDGET_IDS);



AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.ango.angowidget"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="15"

        android:targetSdkVersion="15" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

		<receiver android:name="AppWidget" >

			<intent-filter>

				<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />

			</intent-filter>

			<intent-filter>

				<action android:name="AUTO_UPDATE" />

			</intent-filter>

			<meta-data android:name="android.appwidget.provider" android:resource="@xml/appwidget_info" />

		</receiver>

    </application>

</manifest>

appwidget_info.xml

<?xml version="1.0" encoding="UTF-8"?>

<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"

    android:minWidth="250dp"

    android:minHeight="110dp"

    android:updatePeriodMillis="86400000"

    android:initialLayout="@layout/digitalclock"/>

digitalclock.xml

<?xml version="1.0" encoding="utf-8"?>

<!-- res/layout/bday_widget.xml -->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="250dp"

android:layout_height="110dp"

>

<LinearLayout

android:orientation="horizontal"

android:layout_width="fill_parent"

android:layout_height="60dp"

>

<TextView

android:id="@+id/time"

android:layout_width="wrap_content"

android:layout_height="fill_parent"

android:text="0"

android:gravity="center"

android:textSize="30sp"

android:textStyle="bold"

android:layout_weight="50"

android:textColor="#ff000000"

android:background="#FFFFFF"

/>

<TextView

android:id="@+id/date"

android:layout_width="wrap_content"

android:layout_height="fill_parent"

android:textSize="20sp"

android:text="Buy"

android:layout_weight="50"

android:background="#30C326"

android:textColor="#ff000000"

android:gravity="center"

/>

</LinearLayout>

<LinearLayout

    android:layout_width="match_parent"

    android:background="#FF6633"

    android:layout_height="match_parent" >

    <ImageView

        android:id="@+id/profiles"

        android:layout_width="40dp"

        android:layout_height="match_parent"

        android:src="@drawable/ic_settings_profiles" />

</LinearLayout>

</LinearLayout>

AppWidget.java

package com.ango.angowidget;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

//import android.R;

import android.app.AlarmManager;

import android.app.PendingIntent;

import android.app.Service;

import android.appwidget.AppWidgetManager;

import android.appwidget.AppWidgetProvider;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.net.Uri;

import android.os.IBinder;

import android.os.SystemClock;

import android.provider.AlarmClock;

import android.text.format.Time;

import android.util.Log;

import android.widget.RemoteViews;

public class AppWidget extends AppWidgetProvider

{

    public static final String ACTION_AUTO_UPDATE = "AUTO_UPDATE";

	private final int INTERVAL_MILLIS = 60000;

	public static final String URI_SCHEME = "images_widget";

    @Override

    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {

        //Log.d(ACTION_AUTO_UPDATE, "onUpdate(): ");

        myUpdate(context, appWidgetIds);

    }    

    public void myUpdate(Context context, int[] appWidgetIds){

        //Time estTime = new Time("EST");

        //Time estTime = new Time("CCT");

        Time estTime = new Time();

        for (int appWidgetId : appWidgetIds) {

        	estTime.setToNow();

        	RemoteViews updateViews =

        			new RemoteViews(context.getPackageName(),

        					R.layout.digitalclock);

        	updateViews.setTextViewText(R.id.time, estTime.format("%H:%M"));

        	SimpleDateFormat dateformat1=new SimpleDateFormat("yyyy-MM-dd"+"\r\n"+"E");

        	updateViews.setTextViewText(R.id.date, dateformat1.format(new Date()) );

			//Intent intent=new Intent("/");

			//ComponentName cn=new ComponentName("com.android.settings", "com.android.settings.Settings");

			//intent.setComponent(cn);

        	Intent intent=new Intent(AlarmClock.ACTION_SET_ALARM);

			PendingIntent pendingIntent =

					PendingIntent.getActivity(context,

					0 /* no requestCode */,

					intent,

					0 /* no flags */);

			updateViews.setOnClickPendingIntent(R.id.time, pendingIntent);

			Intent i = new Intent();

			ComponentName cn=new ComponentName("com.android.calendar", "com.android.calendar.LaunchActivity");

			i.setComponent(cn);

			PendingIntent datePendingIntent =

					PendingIntent.getActivity(context,

					0 /* no requestCode */,

					i,

					0 /* no flags */);

			updateViews.setOnClickPendingIntent(R.id.date, datePendingIntent);

			Intent intentProfiles=new Intent("/");

			ComponentName cnProfiles=new ComponentName("com.android.settings", "com.android.settings.profile.ProfileSettings");

			intentProfiles.setComponent(cnProfiles);

			PendingIntent ProfilesPendingIntent =

					PendingIntent.getActivity(context,

					0 /* no requestCode */,

					intentProfiles,

					0 /* no flags */);

			updateViews.setOnClickPendingIntent(R.id.profiles, ProfilesPendingIntent);

			//ComponentName thisWidget = new ComponentName(this,AppWidget.class);

        	AppWidgetManager manager = AppWidgetManager.getInstance(context);

        	//int appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);

        	manager.updateAppWidget(appWidgetId, updateViews);

        }

    }

    @Override

    public void onReceive(Context context, Intent intent)

    {

        final String action = intent.getAction();

    	//Log.v(ACTION_AUTO_UPDATE, "onReceive:"+action);

        if (AppWidgetManager.ACTION_APPWIDGET_DELETED.equals(action)) {

            final int appWidgetId = intent.getExtras().getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);

            if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) {

                this.onDeleted(context, new int[] { appWidgetId });

            }

        } 

        // action must be defined in intent-filter part of AndroidManifest.xml

    	//

        //		<receiver android:name="AppWidget" >

        //		<intent-filter>

        //			<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />

        //		</intent-filter>

        //		<intent-filter>

        //			<action android:name="AUTO_UPDATE" />

        //		</intent-filter>

        //		<meta-data android:name="android.appwidget.provider" android:resource="@xml/appwidget_info" />

        //	    </receiver>

    	if(action.equals(ACTION_AUTO_UPDATE))

        {

            // DO SOMETHING

        	//Log.v(ACTION_AUTO_UPDATE, "onReceive:action.equals(ACTION_AUTO_UPDATE)");

        	int[] appWidgetIds = intent.getIntArrayExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS);

            myUpdate(context, appWidgetIds);

            //context.startService(new Intent(context,UpdateService.class));

            //            Time estTime = new Time("EST");

            //            estTime.setToNow();

            //            RemoteViews updateViews =

            //                new RemoteViews(context.getPackageName(),

            //                        R.layout.digitalclock);

            //            updateViews.setTextViewText(R.id.time, estTime.format("%H:%M"));

            //

            //            //ComponentName thisWidget = new ComponentName(this,AppWidget.class);

            //

            //            AppWidgetManager manager = AppWidgetManager.getInstance(context);

            //            int appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);

            //            if (appWidgetId != -1)  manager.updateAppWidget(appWidgetId, updateViews);

            //UpdateService.updateView();

        } else if (AppWidgetManager.ACTION_APPWIDGET_UPDATE.equals(action)) {

        	//if (!URI_SCHEME.equals(intent.getScheme())) {

            // start alarm

        	//Log.v(ACTION_AUTO_UPDATE, "onReceive: ACTION_APPWIDGET_UPDATE");

            // AppWidgetManager.ACTION_APPWIDGET_UPDATE.equals(action) means it wasn't from the

            // alarm

            // either it's the first time in (even before the configuration

            // is done) or after a reboot or update

            final int[] appWidgetIds = intent.getExtras().getIntArray(AppWidgetManager.EXTRA_APPWIDGET_IDS);

            for (int appWidgetId : appWidgetIds) {

                    //Log.i(ACTION_AUTO_UPDATE, "Starting recurring alarm for id " + appWidgetId);

                    Intent widgetUpdate = new Intent();

                    // it takes me quite some time to figure out the action must be system defined

                    //like AppWidgetManager.ACTION_APPWIDGET_UPDATE, or it won't work.

                    //widgetUpdate.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);

                    widgetUpdate.setAction(ACTION_AUTO_UPDATE);

                    widgetUpdate.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { appWidgetId });

                    // make this pending intent unique by adding a scheme to

                    // it

                    //if we want to use this trick, URI_SCHEME must be defined in AndroidManifest.xml

                    //                    <receiver

                    //                    android:name="AngoWidgetProvider">

                    //                    <intent-filter>

                    //                        <action

                    //                            android:name="android.appwidget.action.APPWIDGET_UPDATE" />

                    //                    </intent-filter>

                    //                    <meta-data

                    //                        android:name="android.appwidget.provider"

                    //                        android:resource="@xml/imageswidget_info" />

                    //                </receiver>

                    //                <receiver

                    //                    android:name="ImagesWidgetProvider">

                    //                    <intent-filter>

                    //                        <action

                    //                            android:name="android.appwidget.action.APPWIDGET_UPDATE" />

                    //                            <data android:scheme="images_widget" />

                    //                    </intent-filter>

                    //                    <meta-data

                    //                        android:name="android.appwidget.provider"

                    //                        android:resource="@xml/imageswidget_info" />

                    //                </receiver>

                    //widgetUpdate.setData(Uri.withAppendedPath(Uri.parse(AppWidget.URI_SCHEME + "://widget/id/"), String.valueOf(appWidgetId)));

                    PendingIntent newPending = PendingIntent.getBroadcast(context, 0, widgetUpdate, PendingIntent.FLAG_UPDATE_CURRENT);

                    // schedule the updating

                    AlarmManager alarms = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);

                    alarms.setRepeating(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime(), INTERVAL_MILLIS, newPending);

            }

            //AppWidgetAlarm appWidgetAlarm = new AppWidgetAlarm(context.getApplicationContext());

            //appWidgetAlarm.startAlarm();

//        	} else {

//        		Log.i(ACTION_AUTO_UPDATE, "URI_SCHEME.equals(intent.getScheme()" );

//        	}

        }

        super.onReceive(context, intent);

    }

    @Override

    public void onEnabled(Context context)

    {

        // start alarm

    	//Log.v(ACTION_AUTO_UPDATE, "onEnabled");

        //AppWidgetAlarm appWidgetAlarm = new AppWidgetAlarm(context.getApplicationContext());

        //appWidgetAlarm.startAlarm();

    }

    @Override

    public void onDisabled(Context context)

    {

    	//Log.v(ACTION_AUTO_UPDATE, "onDisabled");

        // TODO: alarm should be stopped only if all widgets has been disabled

        // stop alarm

        //AppWidgetAlarm appWidgetAlarm = new AppWidgetAlarm(context.getApplicationContext());

        //appWidgetAlarm.stopAlarm();

    }

    @Override

    public void onDeleted(Context context, int[] appWidgetIds) {

    	//Log.v(ACTION_AUTO_UPDATE, "onDeleted");

        // TODO: alarm should be stopped only if all widgets has been disabled

        // stop alarm

        //AppWidgetAlarm appWidgetAlarm = new AppWidgetAlarm(context.getApplicationContext());

        //appWidgetAlarm.stopAlarm();

        for (int appWidgetId : appWidgetIds) {

            // stop alarm

            Intent widgetUpdate = new Intent();

            //widgetUpdate.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);

            widgetUpdate.setAction(ACTION_AUTO_UPDATE);

            widgetUpdate.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);

            //widgetUpdate.setData(Uri.withAppendedPath(Uri.parse(URI_SCHEME + "://widget/id/"), String.valueOf(appWidgetId)));

            PendingIntent newPending = PendingIntent.getBroadcast(context, 0, widgetUpdate, PendingIntent.FLAG_UPDATE_CURRENT);

            AlarmManager alarms = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);

            alarms.cancel(newPending);

        }

        super.onDeleted(context, appWidgetIds);

}

	public class AppWidgetAlarm

	{

		private final int ALARM_ID = 0;

		private final int INTERVAL_MILLIS = 30000;

		private Context mContext;

		public AppWidgetAlarm(Context context)

		{

			mContext = context;

		}

		public void startAlarm()

		{

	    	//Log.v(ACTION_AUTO_UPDATE, "startAlarm");

			Calendar calendar = Calendar.getInstance();

			calendar.add(Calendar.MILLISECOND, INTERVAL_MILLIS);

			Intent alarmIntent = new Intent(AppWidget.ACTION_AUTO_UPDATE);

			PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, ALARM_ID, alarmIntent, PendingIntent.FLAG_CANCEL_CURRENT);

			AlarmManager alarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);

			// RTC does not wake the device up

			alarmManager.setRepeating(AlarmManager.RTC, calendar.getTimeInMillis(), INTERVAL_MILLIS, pendingIntent);

		}

		public void stopAlarm()

		{

	    	//Log.v(ACTION_AUTO_UPDATE, "stopAlarm");

			Intent alarmIntent = new Intent(AppWidget.ACTION_AUTO_UPDATE);

			PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, ALARM_ID, alarmIntent, PendingIntent.FLAG_CANCEL_CURRENT);

			AlarmManager alarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);

			alarmManager.cancel(pendingIntent);

		}

	}

    public static class UpdateService extends Service {

        @Override

        public void onStart(Intent intent,int startId){

           	//Log.v(ACTION_AUTO_UPDATE, "UpdateService:onStart");

           	updateView();

        }

        public static void updateView(){

        }

        @Override

        public IBinder onBind(Intent intent) {

            // TODO Auto-generated method stub

            return null;

        }

    }

}

android App Widgets的更多相关文章

  1. android app widget 创建调用周期

    1 ?Android widget 大小问题 2 ?RemoteViewService Android开发历程_15(AppWidget的使用) Appwidget就是手机应用中常常放在桌面(即hom ...

  2. Android Studio配置 AndroidAnnotations——Hi_博客 Android App 开发笔记

    以前用Eclicps 用习惯了现在 想学学 用Android Studio 两天的钻研终于 在我电脑上装了一个Android Studio 并完成了AndroidAnnotations 的配置. An ...

  3. Livecoding.tv 现正举行iOS及Android App设计比赛

    近日,Livecoding.tv, 一个为世界各地的程序员提供在线实时交流的平台,在其网站上发布了一篇通知, 宣布从4月15日至5月15日,会为iOS和Android的开发者举办一场本地移动app设计 ...

  4. Android APP 简单高效的禁用横竖屏切换

    默认情况下,Android APP的界面会随着手机方向的改变而改变,当手机处于竖屏状态,APP的界面也处于竖屏状态,而当手机处于横屏状态,APP也会自动切换到横屏状态.一般情况下APP的界面都是为竖屏 ...

  5. Android App的设计架构：MVC,MVP,MVVM与架构经验谈

    相关:http://www.cnblogs.com/wytiger/p/5996876.html 和MVC框架模式一样,Model模型处理数据代码不变在Android的App开发中,很多人经常会头疼于 ...

  6. fir.im Weekly - 如何进行 Android App 性能优化

    关于 Android App 的优化,@anly-jun 用 3 个月完成了这一系列文章,从 性能分析工具 到 ANR .Layout .消除卡顿 到 内存优化.内存分析工具大概十五六篇,并对此做一个 ...

  7. Android APP压力测试(三)之Monkey日志自动分析脚本

    Android APP压力测试(三) 之Monkey日志自动分析脚本 前言 上次说要分享Monkey日志的分析脚本,这次贴出来分享一下,废话不多说,请看正文. [目录] 1.Monkey日志分析脚本 ...

  8. Android APP压力测试(二)之Monkey信息自动收集脚本

      Android APP压力测试(二) 之Monkey信息自动收集脚本 前言: 上一篇Monkey介绍基本搬抄官方介绍,主要是为了自己查阅方便.本文重点介绍我在进行Monkey时如何自动收集相关信息 ...

  9. Android APP性能分析方法及工具

    近期读到<Speed up your app>一文.这是一篇关于Android APP性能分析.优化的文章.在这篇文章中,作者介绍他的APP分析优化规则.使用的工具和方法.我觉得值得大家借 ...

随机推荐

  1. OpenGL 实现Interpolation插值算法

    这是一个静态插值算法的效果,图形学中插值算法应用十分广.如动画.photoshop, autocAD等软件画曲线,还有shader中的渐变上色也是一个硬件支持的插值算法. Interpolation是 ...

  2. ASP.NET程序读取二代身份证（附源码）

    原文:ASP.NET程序读取二代身份证(附源码) 一般来说winform应用程序解决这个问题起来时很容易的,web应用程序就麻烦一点了. 这里我说说我的解决思路: 一.你必要有联机型居民身份证阅读器一 ...

  3. Android：抄QQ照片选择器（按相册类别显示，加入选择题）

    这个例子的目的是为了实现类似至QQ照片选择功能.选择照片后,,使用类似新浪微博 微博 页面上显示. 先上效果图:     本例中使用的主要技术: 1.使用ContentProvider读取SD卡全部图 ...

  4. 王立平--result += &quot;{&quot;;

    result += "{"; 等于:result=result+"{" 字符串连接 x+=1====x=x+1 版权声明:本文博客原创文章,博客,未经同意,不得 ...

  5. Linux内核分析（六）----字符设备控制方法实现|揭秘系统调用本质

    原文:Linux内核分析(六)----字符设备控制方法实现|揭秘系统调用本质 Linux内核分析(六) 昨天我们对字符设备进行了初步的了解,并且实现了简单的字符设备驱动,今天我们继续对字符设备的某些方 ...

  6. cuda vector addition

    http://webgpu.hwu.crhc.illinois.edu/ // MP 1 #include <wb.h> __global__ void vecAdd(float * in ...

  7. git merge简介（转）

    git merge的基本用法为把一个分支或或某个commit的修改合并现在的分支上.我们可以运行git merge -h和git merge --help查看其命令,后者会直接转到一个网页(git的帮 ...

  8. 脸识别API微软牛津项目

    微软牛津项目人脸识别API初探 按照董子的这篇博客中的介绍,到微软牛津项目的网站申请到测试用的人脸识别Key,按照官方文档的介绍,把wpf项目建好之后,按照一步步的流程下来就可以完成example中的 ...

  9. Json.NET提供依赖注

    Json.NET提供依赖注 [.NET] 使用Json.NET提供依赖注入功能(Dependence Injection) 前言 在一些小型项目的开发情景里,系统不需要大型DI Framework所提 ...

  10. spring framework 4 源代码阅读器(1) --- 事前准备

    在你开始看代码.的第一件事要做的就是下载代码. 这里:https://github.com/spring-projects/spring-framework 下载完整的使用发现gradle建立管理工具 ...