gallery app android

Picture enlargement idea:First, you can transform the image through the Matrix object, zoom in when you choose, and zoom out to the original size when you lose focus.Double scale = 1.2;int width = bm.getwidth ();int height = bm.getheight ();LOG.I ("Size:", width+ "");float ScaleWidth = (float) (scale*width);float ScaleHeight = (float) (scale*height);LOG.I ("Size:", scalewidth+ "");Matrix matrix = new Matrix ();Matrix.postscale (ScaleWidth, ScaleHeight);BM = BITMAP.CREATEBITMAP (BM, 0, 0, width,

Alps/packages/apps/camera/src/com/android/camera/filesaver.java1:import Java.util.Locale;2:modify the function:public void Refactoertitle () {......if (mtag! = intermedia_image) {If the data is Intermedia file,the file name notThe indexMtitle + = String.Format ("%02d", Mindex);}Setignorethumbnail (TRUE);}Changed to:public void Refactoertitle () {......if (mtag! = intermedia_image) {If the data is Intermedia file,the file name notThe indexMtitle + = St

(). Getmetrics (DM); final bitmapfactory.options Options = new Bitmapfactory.options (); options.injustdecodebounds = true; Bitmapfactory.decodefile (FilePath, options);//Calculate insamplesizeoptions.insamplesize = Calculateinsamplesize ( Options, Dm.widthpixels, dm.heightpixels);//Decode bitmap with insamplesize setoptions.injustdecodebounds = false; Return Bitmapfactory.decodefile (FilePath, options);} public int calculateinsamplesize (bitmapfactory.options Options, int reqwidth, int reqheig

1. In Slideshowview.java2. @Overridepublic void apply (GLCanvas canvas) {int viewwidth = GetWidth ();int viewheight = GetHeight ();float Initscale = math.min (float)Viewwidth/mwidth, (float) viewheight/mheight);M:if Special Sub_type, display by original size/************************************** Edit Start **********************************************/if (0! = (Msubtype mediaobject.subtype_drm_no_right)) {/***************************************edit End ***************************************

Some specific software automatically generates a file named ". Nomedia" in the cached Pictures folder, shielding the scanning of other software.This folder represents the MP3, MP4, RMVB, JPEG and other media files such as audio and video, so the system library is not visible.However, some special software such as quick maps, MX player can also be in the settings to cancel the identification of these files!Android caches images that are not visible in

Double-click the Android Gallery image magnification algorithm,Double-click magnification of an image is related to the image size, view size, and current scale size.To avoid image enlargement, the maximum limit SCALE_LIMIT of a magnification is set. Currently, this value is 4.The specific algorithm is as follows:The image width and height are recorded as: imageW imageHThe view width and height of the displ

Copy Code code as follows: /* Long press the picture in gallery to delete the picture. Gallery.setonitemlongclicklistener (New Onitemlongclicklistener () { @Override public boolean Onitemlongclick (adapterviewFinal int arg2, long arg3) { TODO auto-generated Method Stub New Alertdialog.builder (Sdcardactivity.this) . SetIcon (Android. R.drawable.ic_dialog_alert) . Settitle ("Warm Tip") . Setm

When you play the slide show, press the power button to kill the screen and then the screen, and you will see that the slide continues to play without displaying the keyguard. How to display the Unlock interface after the screen is lit. The modified method is to remove the flag_show_when_locked sign bit, the change location on the ICS2, JB and JB2 is slightly different. 1, in the ICS2 and JB version, modify the Gallery2\src\com\android\gallery3d\

Independent of the system app in the android source code, developed like a common app, Android appI personally recommend that you first import the formatted xml and import in the ide/eclipse of the android source code to your compiled eclipse. If the

[Android] Android mobile app data to SD, android mobile app [Android] Android mobile app data to SD You can specify it in the menifest fil

(1) Android. App. Fragment: the minimum compatible version is Android: minsdkversion = "11" Therefore, your application is not compatible with applications under 3.0. You can use the (2) Android. Support. v4.app. Fragment: compatible with version 1.6. The ProgramIn th

1. Why can third-party apps start up earlier than the system app? Android App Launch Order online there is a lot of information can be consulted, here is not detailed, here does not elaborate ROM start and bootloader, the general process of software startup should be Start kernel Run ServiceManager to start up some native services with commands (incl

Several projects have been developed recently, involving several development models of Android. For the original ecological development, Web application development and Mixed mode development, I think that is not what is the best, which is the worst, this is entirely based on their own needs, choose a suitable development model. They also have their own a bit, but also have their own shortcomings, we based on the actual situation, take the advantages,

Android encapsulates this approach, and we don't have permission to call it, so we can just go through the aidl and use the Java reflection mechanism to invoke the system-level approach. The following code: (note more detailed) /** * Role:-----Get the size of the package-----* @param context * @param pkgname app's package name * @param appInfo entity class for storing some information about the app/PU

July 5, 2014, 6th, AVOs Cloud Joint Move point Technology, seven Qiniu storage, Ucloud, push Network, Segmentfault, EOE Developer community, offer, csdn and Geek College come to Mordor, A two-day hacking marathon was held for developers. This event is an exclusive collaborative media with Dynamic point technology, which features a special report on developers ' ideas and products. Love encryption as the guardian of mobile application security, was invited to be the jury guest of this contest.App

Android starts the APP in the browser, android browser appTo start an APP in a browser, follow these steps:Add intent-filter information to the ACTIVITY to be redirected:Example:Add the following link in HTML: After entering the APP, you can use getIntent () to obtain the in

How does Android jump into the App from the outside and Android jump into the App? Solving this problem has two functions: 1. directly access a page without opening the App 2. share an App to the outside, and access the closed loo

How does Android jump into the App from the outside and Android jump into the App? Blog Source: http://blog.csdn.net/liuxian13183! All Rights Reserved! This problem has been solved for two days. Because there is no complete solution on the internet, I will share it with you! Solving this problem has two functi

Getxxxextra () and found that the class was thrown out of the undefined exception.To test the app code snippet:protected void onCreate (Bundle savedinstancestate) { = getintent (); Intent.getstringextra (/// here will still be due to noclassdeffounderror crash}We then tested a number of mainstream applications on the market, including bat. Found that this method can kill. We started to think that this was the problem with

Android learning notes-App Initial Startup interface implementation, android-app When many apps on android phones start, an image is displayed first. as the beginning of the app, the image is transient. This image usually uses the