messaging apps for android

The meaning of the signature1. to ensure that every application developer is legally2. prevent some malicious tampering by using the same package Name to confuse the replacement of an already installed program. 3. ensure consistency of our release version (e.g. Automatic Updates will not be installed because of inconsistent versions)Here's a look at the specific steps of signing:1. Right click on the project to select Export, pop up the following window2. Select Export

= "vertical" > LinearLayoutAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"android:orientation= "Horizontal" > EditTextAndroid:id= "@+id/edittext1"Android:layout_width= "0DP"Android:layout_weight= "1"Android:layout_height= "Wrap_content"Android:ems= "Ten"Android:hint= "Please enter an integer of 0-255"Android:inputtype= "Number" /> ButtonAndroid:id= "@+id/button1"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:onclick= "S

First, the cause of outofmemeryerror?Androd memory limit for each applicationSecond, get the Android phone app memory size phone different performance is also different, the phone itself memory may be small, so the memory size for each app is not the same.Method One:[Email protected]:/# adb Shell Getprop | grep dalvik.vm.heapgrowthlimit[Dalvik.vm.heapgrowthlimit]: [96m]Method Two:Activitymanager Activitymanager = (activitymanager) context.getsystemser

Suppose the API or APK in the Android system cannot read and write to the USB device. may not be added to read and write USB permissions, you need to follow such as the following methods to set up:1. Include the following in the android.hardware.usb.host.xml file, for example name="android.hardware.usb.host"/> 2. In tablet_core_hardware. XML file, such as the following : name="Android.hardware.usb.host" > 3. Compile system.img again. and bu

Http://jingyan.baidu.com/article/03b2f78c7b6bb05ea237aed2.htmlStart Fiddler, open the Tools > Fiddler options in the menu bar, and Open the Fiddler Options dialog box.In the Fiddler Options dialog box, switch to the Connections tab, then tick the checkbox after allow romote computers to connect, then click the OK button.Open "Settings", "Wi-Fi" on your Android device, locate the network you want to connect to, tap and hold on it, then select "Modify N

appearance of the CardView: Use the Card_view:cardcornerradius property to set the radius of the fillet in the layout file.Use the Cardview.setradius method to set the radius of the fillet in Java code.Sets the background color of the card, using the card_view:cardbackgroundcolor property. Below is an example of a CardView included in an XML layout file: Card example DiagramCard example DiagramStrumRecyclerview can be seen through the above. It's a lot like the ListView we used t

also includes the interests of users, to their own reputation will also cause a certain harm! Looking back, let's guess how my app was planted with malicious ads at the beginning of the paragraph. Personally, it is to use the above method to decompile, the already written and generated Smali file into my package, and then in the manifest file configuration, and modify the package name, and finally RePack (to get this result is based on, I have two times packaged apk and another anti-compilation

Android share content to other applications, call System dialog or Actionbar pop-up windows are not too free, limited too much, here I provide a fully customizable interface, you can pop windows, or directly in the activity or fragment inside the custom interface. Here to show a key class of code, do the encapsulation processing, I write two demo, free source in: http://download.csdn.net/detail/yanzhenjie1003/8565449/** * @author YOLANDA * @Time April

Today in the use of 360 mobile phone assistant, found that it will automatically create a quick start mode, it feels very interesting, so on the Internet Baidu Some methods, try, there is a way is quite good, I use for reference, first save, I also wrote a Test applet.First, add the code in the mainactivity you want to launch the app into, and in the OnCreate () method, plus a method createshortcut ();Then there is the implementation of the method:private void CreateShortcut () {//TODO auto-gene

If the API or APK in the Android system is unable to read or write to the USB device, it may not be possible to add read/write USB permissions, which need to be set as follows:1. In the android.hardware.usb.host.xml file, add the following: name="Android.hardware.usb.host" /> 2. In tablet_core_hardware. Add the following content to the XML file name="Android.hardware.usb.host " > 3. Recompile the system.img, and burn the firmware to restart

packaging), or by some criminals use, the loss is not their own, The company also includes the interests of users, to their own reputation will also cause a certain harm! Looking back, let's guess how my app was planted with malicious ads at the beginning of the paragraph. Personally, it is to use the above method to decompile, the already written and generated Smali file into my package, and then in the manifest file configuration, and modify the package name, and finally RePack (to get this r

() { super.oncreate (); System.out.println ("Service started"); } @Override public void OnDestroy () { Super.ondestroy (); System.out.println ("Service destory");} }　　AnotherappPackage Com.xfeng.anotherapp;import Android.content.componentname;import Android.content.intent;import Android.support.v7.app.appcompatactivity;import Android.os.bundle;import Android.view.view;public Class Mainactivity extends Appcompatactivity implements View.onclicklistener {

CaseLaunches the app when a push message is received after the app exitsMethod:When you hear the message, add the following code: Intent Intent = new Intent (); Intent.setclass (Context.getapplicationcontext (), glaunchactivity.class); Intent.addflags (intent.flag_activity_new_task); Context.getapplicationcontext (). StartActivity (Intent);Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.Launch other

pull or sleep state, which is why you should use Alarmmanager or configure attribute stopself () at the end of the service.Recommendation VIII: Other considerationsCheck the status and network status of the battery before making the overall update, and wait for the best state for a large-scale reload operation;Let the user see electricity situation, such as update cycle, background operation;Implementing a low memory footprint UIRecommendation IX: How to find layout display problemsWhen we crea

How does android display a complete desktop icon name (the icon name of some apps is too long), androidapp1. Find the corresponding res resource, modify styles. xml, and setChanged:2. Modify the applyFromShortcutInfo method of BubbleTextView. javaSetCompoundDrawablePadding (int) (grid. folderIconSizePx-grid. iconSizePx)/2f ));In this line of code, the parameter size is adjusted to the appropriate value.

The four ways Android boots are standard,singletop,singletask,singleinstence, respectively.Standard is the most common way to start an activity and is the default way to start. When you start an activity, he goes to the top of the stack at the back of the stack. The system does not control whether the stack has the same activity, in the same way as after-in first-out.Singletop mode is when the activity starts, the system first determines whether the t

(Throwable e) { //显示错误 }}BeamBeam is a fast development framework based on the MVP model. Reference to the nucleus. The example code above is using this (demo code for this framework for easy copying. =). Defines a set of development specifications. and provide the Activity,fragment,presenter,model based on this set of specifications such as parent classes and controls and APIs, etc., complete the application development process a lot of tedious work. And a series of optimizations. See here for

(Throwable e) { //显示错误 }}BeamBeam is a fast development framework based on the MVP model. Reference to the nucleus. The example code above is using this (demo code for this framework for easy copying. =). Defines a set of development specifications. and provide the Activity,fragment,presenter,model based on this set of specifications such as parent classes and controls and APIs, etc., complete the application development process a lot of tedious work. And a series of optimizations. See here for

Because the scanning mechanism of the hbuilder cannot be directly connected to the Shangye God Simulator. I had a long time finally found a way to share to everyone.First, start the Hbuilder and night gods simulatorThen open the cmd command promptCD into the night God Simulator Bin directoryExecute the following commandNOX_ADB Connect 127.0.0.1:62001NOD_ADB devicesSuch as:Then CD into the Hbuilder tools directoryExecute the following commandADB Connect 127.0.0.1:62001ADB devicesSuch as:In the en

Night God simulator Open Developer Debug mode:1. Open the "settings" of the phone and go to the "Settings" page;2. Slide to the bottom of the "Settings" page;3. Find "about tablet" and go to the "About tablet" page;4. Find the "version number" and click it continuously.5. A text reminder will pop up until the number of reminders is 0. End Click.6. Go back to the "settings" screen and the developer options will come up.7, check USB debugBecause the Hbuilder automatic scanning mechanism cannot dir