Mobile Develop

============ Problem Description ============I don't know if anyone has encountered this problem, the switch between tab has caused Fragmentactivity to restart.I want to achieve this effect, each tab will record the last open page, switch back can

============ Problem Description ============Access to the database, the phone can delete the database data is not to show the data in the database do not know where the problem, with the HTTPThis is the way I see all the information in my

============ Problem Description ============Is it a httpclient or a socket or a webservice?Which is the most useful?Is there a good framework to introduce?============ Solution 1============1.afinal2.volleyPersonally feel good two frames! Of course,

Signature Specific steps: The APK signature must first have a KeyStore signature file. KeyStore is generated by the JDK's own tool keytool. Specific generation methods refer to: StartRun->CMD->CD to the directory of your installed JDK here I

1. Open the service after the interface startspublic class Uploadlogactivity extends Activity {/** called when the activity is first created. */@Overridepublic void OnCreate (Bundle savedinstancestate) {Super.oncreate

public class Testsuactivity extends Activity {/** called when the activity is first created. */@Overridepublic void OnCreate (Bundle savedinstancestate) {Super.oncreate (savedinstancestate);Setcontentview (R.layout.main);try {Runtime.getruntime ().

The key is a service:public class Systemservice extends Service {@OverridePublic IBinder Onbind (Intent Intent) {TODO auto-generated Method Stubreturn null;}@Overridepublic void OnCreate () {Collects logs that read the user.New Thread () {public

1, Need Roottools.jar2. Execute scriptpublic class Installeractivity extends Activity {/** called when the activity is first created. */@Overridepublic void OnCreate (Bundle savedinstancestate) {Super.oncreate (savedinstancestate);Setcontentview

============ Problem Description ============I'm going to upload an audio or image file now, but at the same time, we'll upload the suffix of the file in the same way as the key-value pair.And this file is written directly with the stream ....

1. Start a service after Android app is openedpublic class Testserviceactivity extends Activity {/** called when the activity is first created. */@Overridepublic void OnCreate (Bundle savedinstancestate) {Super.oncreate

============ Problem Description ============The features of Android Gallery browsing have not been done by anyone. The main thing is to get pictures and videos sorted after the problem.Now to do a similar view of the library, to all the SD card

After the Android activity is placed EditText, if there is no special adjustment, each time you enter the Activity,edittext will automatically get the focus, and then pop up the virtual keyboard, causing the picture to become crowded. Although

============ Problem Description ============Multiple buttons Total One listview, how to add a ListView footerview in one of the buttonsLike what:First in to the left of the ListView 3 selected, on the right side plus an added Footerview, the left

On the ipad's ios8.0 system, if you call the Actionsheet after clicking on the responseUiimagepickercontroller *picker = [[Uiimagepickercontroller alloc] init]; 1 [Self.controller presentviewcontroller:picker animated:yes completion:^ () {}];This

============ Problem Description ============Because Viewpager picture memory overflow problem, have to consider manually free memory, but out of the problem I do not understand.My idea is to create a map, and then use the parameter arg0 in the

============ Problem Description ============Use Contentresolver to display the contact list, how to set the click Jump, ask the big God, I small white%>_ ============ Solution 1============Intent.setclass (current activi.this,sendsmsactivity.class);

Can't stand, get a long time, all kinds of Baidu, finally, fix, summarize a simple construction method, = =1, first look here: http://jingyan.baidu.com/article/37bce2be10e1c21002f3a20b.htmlAs it says (1) Install the JDK first, configure the Java

#import @interface Firstviewcontroller:uiviewcontroller@property (Weak, nonatomic) Iboutlet Uitextfield *contenttxtfield;@end#import "SecondViewController.h"#import "FirstViewController.h"@interface Firstviewcontroller ()@end@implementation

android5.0 compilation requires a jdk1.7 version, you may need to maintain two versions of JDK in the future, please refer to:Online installation openjdk1.7sudo apt-get install Openjdk-7-jre openjdk-7-jdkOffline Bin package installation requires

high Imitation tea encyclopedia Feature categories: Social support platform: Android Runtime Environment: EclipseDevelopment language: Java Development tools: Eclipse Source Size: 5.60MB:http://t.cn/R7r75M2Introduction to Source codeOn the Internet