android app development books pdf

1, get today's dateNew SimpleDateFormat ("Yyyy-mm-dd"= Sdf.format (new java.util.Date ());2,string ext. intInteger.valueof (str). Intvalue ()3,int Turn stringString.valueof (Selectedtaskid)4,toast DisplayToast.maketext (listcomplicatetaskactivity. this, "You already have 100 records, please delete some", Toast.length_long). Show ();5, jump activity without parametersStartActivity (new Intent (listcomplicatetaskactivity. this, listcomplicatetaskactivity. class));6, with parameters jump activity

//Show Next viewMviewflipper.shownext ();return true;74}All else if ((E2.getx ()-e1.getx ()) >distance)76 {77//Show Previous viewMviewflipper.showprevious ();return true;80}Bayi return false;82}83@Overrideonlongpress void (motionevent e)86 {/TODO auto-generated Method stub8889}90@OverrideOnscroll Public Boolean (Motionevent E1, motionevent E2,Distancex float, float distancey)94 {Up//TODO auto-generated method stub--return false;97}98@Overridepublic void Onshowpress (Motionevent e)101 {102//TODO

View.onclicklistener ()74 {75@OverrideThe public void OnClick (View v)78 {/TODO auto-generated Method stub80//Show information returned from the serviceBayi Mtextview.settext (Mbinder.returnservice ());82}83});8485//Similar to the use of the handler classMserviceconnection = new Serviceconnection ()87 {88@Override90//When a connection is established with the service, this function is automatically calledonserviceconnected public void (componentname name, IBinder service)92 {/TODO auto-generated

1. THML5 has been able to implement the basic framework of most Android applications. For example, read 2. is the integration of basic applications of custom systems a good indication of the coming autumn of Android development? 1. THML5 has been able to implement the basic framework of most Android applications. For e

will not start a new activity until it gets to the top. Let's say I now have a, start B in a, and add this tag to the intent in a. At this time B is to flag_activity_brought_to_front this start, at this time again in B again start c,d (normal start c,d), if this time in D again start B, this time the last stack is a,c,d,b. It is particularly important to note that Do not misunderstand this: A,b,c,d are standard loading, and then I start a in D, this intent plus flag_activity_brought_to_front, w

,};builder.setMultiChoiceItems(items, checkedItems, new OnMultiChoiceClickListener() { //点击某个选项，如果该选项之前没被选择，那么此时isChecked的值为true @Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { checkedItems[which] = isChecked; }});builder.setPositiveButton("确定", new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { StringBuffer sb = new StringBuffer(); for(int i = 0;i Progress Bar dialog box

|= mdoubletaplistener.ondoubletapevent (EV) ; } else {//This is a first tap mhandler.sendemptymessagedelayed (tap, Double_tap_tim EouT); } } ......} Private Boolean Isconsidereddoubletap (Motionevent firstdown, motionevent firstup, motionevent seconddown) { if (!malwaysinbiggertapregion) {return false; } final Long deltatime = Seconddown.geteventtime ()-firstup.geteventtime (); if (Deltatime > Double_tap_timeout | | deltatime detailed to be able to

occupies 1/3 of the space. If you add a third view and the weight is set to 1, then the first view (with a weight of 2) occupies 1/2 of the space, and the remaining two view accounts for 1/4. (Note that the premise of the use of weights is generally set to 0DP for the width or height of the view, then the system calculates the space that the view should occupy according to the weight rules above.) However, in many cases, if the view is set to the Match_parent attribute, then the above calculati

Php for Android server development-json xml universal app Data Communication Interface encapsulated by php Php file: test. php is a common communication class $ Code, 'message' => $ message, 'data' => $ data,); if ($ type = 'json') {self: json ($ code, $ message, $ data); exit;} elseif ($ type = 'array') {var_dump ($ result);} elseif ($ type = 'xml ') {self: x

)) //{Order = Orderdao.getorder (orderId);if(order!=NULL) {System.out.println ("Update payment status:"+orderid); System.out.println ("Paytime"+paytime); Order.setorderpaystatus (1); Order.setorderpaytime (paytime+". 0"); Order.setorderqueryid (Orderqueryid);//order.setorderpaytime (New SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss"). Parse (paytime)); Booleansucess = orderdao.update (order); System.out.println ("sucess"+sucess); }//}

From: http://www.techolics.com/android/software/20121204_322.html I recently learned how to develop the Android mobile phone system, so I want to find some practical examples to learn and practice. I just found that there was an app on the iPhone that could query paper gold and silver prices in real time. It should be a very small tool. It should not be difficul

Wxpayentryactivity.java to the Wxapi folder under your project package, such as your package name is Com.xx.shop, then put it under COM.XX.SHOP.WXAPI.Set Androidmanifest.xml to support callbacks: Wxpayentryactivity.java does not require layout files or can be laid out according to your needs. For debugging convenience, change the code in the Wxpayentryactivity.java to onResp : @Override public void Onresp (Baseresp resp) { log.d ("Onpayfinish", "onpayfinish, Errcode =" +

This article mainly explains the Android browser Development example, has three parts: launches the Android default browser, the specified browser accesses and opens the local HTML file. First, start the Android default browser Java code Intent Intent = new Intent (); Intent.setaction ("Android.intent.a

Iterator pattern: provides a method to access each element of an aggregate object sequentially without exposing the internal representation of the object. The iterator mode can be used to traverse a collection. Java also provides a tool class: Java. util. iterator 1. When you need to access a clustered object, regardless of what these objects require, you should consider using the iterator mode. 2. When multiple traversal methods are required for clustering objects, you can use the iterator mod

Android development, the inevitable use of network technology, and in most cases, we are using the HTTP protocol to send and receive network data. The Android system offers two main ways of HTTP communications, HttpURLConnection and httpclient, but Google recommends using httpurlconnection from Android 2.3 and beyond,

This article describes how to use the ImageSwitcher control in AndroidUI development. The ImageSwitcher control is similar to the ImageView control, which can be used to display images. However, the ImageSwitcher name can be used to display multiple images. This article describes how to set basic attributes of the ImageSwitcher control and call common methods. At last, we will use an example Demo to show some of the content mentioned in this blog. Ima

First, the SDK downloadDownload: Adt-bundle-windows-x86_64-20140702.zip (20140702 is already the last version)Unzip it as follows:Click Eclipse InstallationTo create a new workspace installation:Once the above steps are complete, you are ready to use.Second, the use of analog deviceDownload from the Hippocampus play official websiteDownload Simulator:Install and downloadDDMS function: For connection operation of your phone (including simulator)The concept of resources , and the R fileHow resourc

The interaction between the activity class and the HTML page of the Android Hybrid development (and solve the black screen problem)At the bottom of the program source code downloadThe program flow: Program Start-->testactivity--->PHONEGAP2 framework class--->index.html--->testactivity, the main implementation of activity and HTML page mutual jump, and implement the function of passing parameters.Program Str

Application and activity in the OnCreate are optimized, basically no time-consuming operation, but after starting the application will still flash a white background, and then into the splash page, compared to QQ, Weibo and other clients, After the click is instantaneous response Splash start page, where is the difference.In fact, even if you oncreate do not do anything, will still flash white screen, because the initial parsing interface takes a certain amount of time, the solution is to custom

These days to help seniors do the app, according to the video learned JSON data transfer, and then encountered a problem, that is, HttpURLConnection will throw an exception, and then a very painful egg.Simply i Baidu HttpURLConnection, see Baidu Experience has been posted out the solution, is to change the manifest version of TARGET-SDK, changed to 8 on the line, the original address is: http://jingyan.baidu.com/ Article/154b46315309b228ca8f41cc.html,