how to save snapchats android

Problem: Android: couldn't save which view has focus because the focused view ### has no ID There are two possible causes: Solution 1: Android: icon = "@ drawable/icon" Android: Label = "@ string/app_name"> Android: Label = "@ string/app_name"

The first few days encountered a problem: Save the image to the SD card in the Android development app, and the user searched in the gallery, similar to the form of the cache. The first idea is to change the suffix name, for example, to save a picture as Image1.txt, so save of course no problem, but in the application

Android apps now account for a larger memory than one, and the quality of Android programs needs to be improved.Here is a brief description of the network image cache, my side of the simple talk about ideas1: Network pictures, undoubtedly need to download pictures, we do not need to download each time.Maintain a table, the table contains the URL corresponding to the stored file nameThe implementation method

Recently, I want to develop a function similar to the function of having bubbles at the bottom of QQ. I think many developers will know that TabHost is not saved, and the layout will be re-loaded every time, to save the status, use RadioGroup. The status can be saved. The problem is that the bubble function cannot be implemented and the layout cannot be customized. Because the RadioGroup can only contain RadioButton, or the status switch cannot be use

Knowledge Points: 1. Using SQL Helper to create a database2. Check and delete data (Prdu:put, Read, Delete, Update) Background knowledge: The previous article learned about Android save files, and today I learned to save data to a SQL database. I believe you are not unfamiliar with the database. For a large number of duplicate, with a specific structure of the

Recommended reading: A brief analysis of Android phone defender custom control properties An analysis of Android phone defender turn off automatic Updates Detailed Android Phone Guardian Settings Wizard page The general mobile phone does not have root permissions, into the Data/data directory, when the phone brush machine, with root permissions, you can enter

Android learning notes-save Files)Android devices have two types of file storage areas: internal storage and external storage ). This name comes from early Android, when most Android devices provided two storage methods: built-in non-Loss memory (internal storage) and remova

define the resource files that need to play the animation, define the resources in the arrays file, or define them in the code resources> array name="C"> item>@mipmap/c_1Item> item>@mipmap/c_2Item> ...- item>@mipmap/circle_19Item> item>@mipmap/circle_20Item> array>Resources>Gets an array of resources after the definition (the array of resource files can be directly defined in the code, ignoring the previous step): privateint[] getRes() {

In Android applications, we often need to record some preferences for user settings, and we need to use sharedpreferences and editor to save the information and read it at the next login.The data saved by Sharedpreferences is basically similar to the data in the configuration information format, so it holds the data in the form of key-value, so let's look at the instance code.The first is the interface layo

to preserve the canvas state, which is actually the position of the origin of the coordinate system and the direction of the x-axis and the y-axis.See in that example. When you are panning, rotating, stretching, and so on, the operation is actually done for the entire coordinate system. For example, you draw a point in the (30,40) position and then rotate 45 degrees so that the position of (30, 40) is changed because the position of the coordinate system is changed. If you miss the coordinate p

How to Use SharedPreference to save files for Android storage Learning In the last two sections, we used text files to store user information, which is obviously vulnerable. At the same time, it is difficult to manage the content in the file. Today, we learn to use SharedPreference to save. SharedPreference stores scattered data. We still use the example in the s

is passed to the OnCreate method when the activity is rebuilt - @Override - protected voidonsaveinstancestate (Bundle outstate) { in super.onsaveinstancestate (outstate); -Outstate.putstring ("Temp", temp); to } + It is important to note that the Onsaveinstancestate () method is not necessarily called, because some scenarios do not need to save state data. For example, when the user presses the back key to exit the activity, the user obviousl

only in the case of landscape or landscape screen. Find out the cause of screen rotation and the impact of the first solution. Step 1 disable the sensor and use android:screenOrientation="nosensor" To set and find that it is still not working-it may be because the sensor is not disabled, so I listened to the event. I thought there was a method called onconfigurationchanged when I looked at the android source code before, so I tried this method, addi

To save some simple configurations, iOS-like Nsuserdefault and COCOS2DX ccuserdefault,android provide sharedpreferences.A layoutLook first:Open the Main.xml to modify the contents as follows:Two definition stringsOpen Strings.xml Add content as follows: Three-function implementationModify the Mainactivity.java code as follows: Private EditText Nametext; Private EditText Agetext; @Override p

A recent project to increase the Android side of a function, is to add an activity with a lot of checkboxes on the tick information, and then you can choose the multi-box, it seems very simple. But it's a lot of trouble to really do it.Although I have a little knowledge of Android, have seen some code, but are looking at someone else's code, see the code is of course simple, this should be all their own wri

SOURCE Blog: http://www.devahead.com/blog/2012/01/saving-the-android-webview-cache-on-the-sd-card/The main idea is to indirectly change the results obtained by WebView acquiring the cache directory by the override Getcachedir () method at the activity level;Getcachedir () and Getfilesdir () are often used when saving the cache (file), which returns the default result as/data/data/package name/cache (files).However, this can be very internal Storage, a

This article introduces the example of drawing and saving pictures in Android, the following is the specific implementation method, a friend in need can refer to the Canvas is a canvas in which you can create a blank canvas, directly new to a canvas object, without the need for parameters.You can also use Bitmapfactory to create a bitmap object as a parameter to the new canvas object, which means that the canvas is not blank,If you want to

= (DefaultHttpClient) http.getHttpClient();NetworkTool.cookieStore = httpClient.getCookieStore(); Finally, you only need to set a saved cookie in the request. 12 //http为HttpUtils实例http.configCookieStore(NetworkTool.cookieStore); Save cookies in non-xutilsCookies exist in HttpClient, and a simple understanding is to use uniform httpclient in all requests, or to get cookiestore, consistent with xutils.Persist

compatibility.Bitmap microthumb = Storethumbnail (CR, Minithumb, ID, 50F, 50F,Images.Thumbnails.MICRO_KIND);} else {LOG.E (TAG, "Failed to create thumbnail, removing original");Cr.delete (URL, null, NULL);url = null;}catch (Exception e) {LOG.E (TAG, "Failed to insert Image", e);if (URL!= null) {Cr.delete (URL, null, NULL);url = null;}} if (URL!= null) {StringUrl = Url.tostring ();} return stringurl;} The above method has a title, I just thought it is possible to set the name of the pi

{FileOutputStream fos = new FileOutputStream (file,true);Fos.write (Message.getbytes ());for (int i = 0; i Fos.write (Stack[i].tostring (). GetBytes ());}Fos.flush ();Fos.close ();} catch (Exception e) {}Looper.loop ();}}.start ();return false;}TODO uses HTTP Post to send error reports to the server don't repeat it here.private void Postreport (file file) {When uploading, you can also send the version of the app, the model of the phone and other information sent by the server,