gallery app android

The Android system comes with a Gallery image browsing application that allows you to smoothly display images when dragging your fingers. This provides excellent user interaction and experience. This example uses Gallery and custom View to simulate the Image Browsing effect of a Gallery image set. As follows: 1. Basic

require special permissions, such as listening to contacts, you need to check the permissions of the contact, this need to pay attention to.SummarizeRelative to the fileobserver of the various dark pits, contentobserver is still very useful, the response speed should be the former faster, because after all, is directly listening to the file directory. There's time for this later. I can look at the efficiency comparison between the two. Copyright NOTICE: This article for Bo Master original artic

(convertView== NULL) {Imageview=newimageview (mainactivity.this);} else{imageview= (ImageView) Convertview;} Imageview.setimageresource (Images[position]); returnimageview;}}650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M00/8B/8E/wKiom1hQ7uLC1OHjAAFiUMGNV4k443.png-wh_500x0-wm_3 -wmp_4-s_2418319840.png "style=" Float:none; "title=" _fse8o] ' k~yu77m4{c ') ntg.png "alt=" Wkiom1hq7ulc1ohjaafiumgnv4k443.png-wh_50 "/>650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M02/8B/8E/wKiom1hQ7

There are too many code controls in the past. Due to the project time issue, we seldom take into account the optimization details. Today we will briefly discuss the optimization effect of the listview control when using the adapter: good direct texture: Let's first look at the comparison effect: When converview is not determined to be empty, that is, the time consumed for loading is: When the convertview is null, Cai reloads the data, that is, the cached data is used: The following figure sh

First look at the following effect:from the picture above you can see that when you add more than one picture, you can create a Gallery the effect, We pull the picture around to see what we add to the picture, the effect is not much better? Let's see how it's going to come true! The above effect is similar to the ViewPage effect in Android, but unlike Viewpager,Viewpager can only display one picture at a ti

1. Under the Arabic language, take a picture of a motion path in camera,2. Slide into the gallery to view this picture, in the preview screen, the bottom right corner of the frame will have a "+" button, click on the button, and then press the Arabic button in the upper right corner, back to the motion trajectory animation preview screen3. Look at the trajectory animation, found that the first show is the green pattern, and then become the scene, gree

Maybe we all know when we download the image to the Android phone, and then call the system library to open the picture, prompting "cannot find the specified item".That's because the images we've inserted haven't been updated, so just plug the pictures into the system gallery and then the clockwork broadcast will be OK./** * Picture inserted into the system album, solve the system library cannot open pi

) {((Viewpager) container). Removeview ((ImageView) object); } }RelativelayoutAndroid:id= "@+id/content_pager_layout"Android:layout_width= "Match_parent"Android:layout_height= "365DP"Android:clipchildren= "false"Android:layertype= "Software" > com.dotfive.chuanbang.layout.ViewPagerFixedAndroid:id= "@+id/content_vp"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"android:layout_gravity= "Center"Android:layout_margin= "15DP"Android:clipchildren= "false"andr

. Graphics, FMX. Dialogs, System.actions,8 FMX. Actnlist, FMX. Objects, FMX. Controls.presentation, Fmx.stdctrls,9 FMX. Medialibrary.actions, FMX. Stdactns;Ten One type ATForm1 =class(Tform) - Button1:tbutton; - Button2:tbutton; the Image1:timage; - actionlist1:tactionlist; -Takephotofromlibraryaction1:ttakephotofromlibraryaction;//manually added action -Takephotofromcameraaction1:ttakephotofromcameraaction;//manually added action + proceduretakephotofromlibraryaction1didfinishtaking (image

The first day of the new year began to learn the MU class Spring Festival activities in the Android wish to share a lesson, learned a few knowledge points, in this record.1. Call System GalleryCall the system library with intent, the procedure is to pop up the system library selector, select the picture to get to the selected picture. The code is as follows://call where it's neededIntent Intent =NewIntent (Intent.action_pick,NULL); Intent.setdataandty

(); Listview.setonitemclicklistener (NewOnitemclicklistener () {@Override Public voidOnitemclick (adapterviewintPositionLongID) {IDs=Listview.getcheckeditemids (); TextView textview_id=(TextView) View.findviewbyid (r.id.textview_id); TextView Textview_name=(TextView) View.findviewbyid (r.id.textview_name); BooleanFLG =false; for(inti = 0; i ) { if(id==Ids[i]) {Textview_id.settextcolor ((color.blue)); Textview_

Automatic Image switching in iOS development (similar to the android gallery effect) # Import ViewController. h # define ImageViewCount 5 @ interface ViewController () @ Property (weak, nonatomic) IBOutlet UIScrollView * imageScrollView; @ property (weak, nonatomic) IBOutlet UIPageControl * imageViewPageControl; @ property (strong, nonatomic) NSTimer * timer; @ end @ implementation ViewController-(voi

First look at the Viewpager display multiple picture effects: From the above picture can be seen, when adding more than a picture, can be formed below the effect of a gallery, we pull around the picture to see we add in the picture, the effect is not a lot better? Let's see how to achieve it! The above effect is similar to the viewpage effect of Android, but unlike Viewpager, Viewpager can only display

Reprint please indicate source: http://blog.csdn.net/lmj623565791/article/details/38173061, this articlefrom: "Zhang Hongyang's Blog"Previous blog I used custom Horizontalscrollview to write a landscape picture carousel with Horizontalscrollview effects and Viewpager features, see: Android customization Horizontalscrollview creates more pictures (controls) and is not afraid of the lateral sliding effect of OOM. In fact, the production of horizontal sc

(Environment.getexternalstoragedirectory (), Image_file_name) ; Croprawphoto (Uri.fromfile (tempfile)); else {Toast.maketext (getapplication (), "No sdcard!", Toast.length_long). Show (); Case Code_result_request:if (Intent!= null) {Setimagetoheadview (intent);//Set Picture box} break; } super.onactivityresult (Requestcode, ResultCode, intent); /** * Crop the original picture */public void Croprawphoto (Uri uri) {Intent Intent = new Intent ("Com.android.camera.action.CROP"); Inten T.setdataandt

Galleries are available in many app designs, as shown in the following illustration: The example is when I am OK to write a small project, the specific source address please visit https://github.com/AlexSmille/YingMi. The gallery similar to the effect of the cover, slide into the middle of the picture will slowly become larger, leaving the view will slowly shrink, while setting up sliding monitoring and

Android.widget.Button Import Android.widget.imageview;public class Mainactivity extends Activity {private Button btn;private ImageView img; Private String URL = "http://pic.yesky.com/uploadImages/2016/065/03/8VG0Q0HU97X3.jpg";p rivate Handler Handler = new Handler (); @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.main); btn = (Button) Findviewbyid (r.id.btn_getpic); Btn.setonclicklistener (new Onclicklistener () {@Ove

("/sdcard/cropped.jpg"))); //Set A fixed crop window size (Optional)Intent.putextra ("OUTPUTX",640); Intent.putextra ("outputy",480); //Set the max crop window size (Optional)Intent.putextra ("MAXOUTPUTX", -); Intent.putextra ("maxoutputy", -); //Set a fixed crop window ' s width/height aspect (Optional)Intent.putextra ("Aspectx",3); Intent.putextra ("aspecty",2); //Start Imagecropper activity with certain request code and listen for resultStartactivityforresult (Intent, request_code_crop_pictu

Android phone has its own camera and graphics library, we do in the project is sometimes used to upload pictures to the server, today did a project to use this function, so put my code to write down and share with you, the first blog I hope that the great God a lot of criticism. First, the code that calls the Android photo album and Camera: Copy Code code as follows: Intent Intent = new Inte

In the development of Android often use the image upload function, commonly used is to call the Android system comes with the library and photo function. The sample code is as follows:Java code:public class Testactivity extends Activity {public final static int photo_zoom = 0; Public final static int take_photo = 1; Public final static int photo_result = 2; public static final String image_unspecif