android sdcard path

,attrs); Mpaint = new Paint (); TypedArray a = context.obtainstyledattributes (Attrs,r.styleable.myview); int textcolor = A.getcolor (R.styleable.myview_textcolor, 0XFFFFFF);//Note Add default value float textSize = a.getdimension (r.style Able. Myview_textsize, 36); Mpaint.settextsize (textSize); Mpaint.setcolor (TextColor); A.recycLe (); } @Override protected void OnDraw (canvas canvas) {super.ondraw (canvas); Set the Fill Mpaint.setstyle (Styl

Android architect's path-architecture-code drills, android ArchitectureFrom EIT styling -- "codeArchitect's work:Major task: Architects (strong Dragon) follow the EIT model and divide E. I. T into three elements.Strong Dragon control: -- production, strong Dragon control I, outsourcing will not be out of control-- System plane. E is the control point and I is use

Android development and learning path-3DTouch effect imitation, android-3dtouch We should all know what effect 3D Touch has. What? I don't know. That's no way. I didn't show you the iPhone 6 s. What I want to do in this blog: A low-quality animation: This animation does not work very well. In fact, the operation is smooth, and the blur effect should be as shown

Android player path: java-layer Binder and Android binder Many people refer to the proxy mode when talking about Binder. There are a lot of people, and there is little understanding of the essence. This article analyzes the design objectives, design ideas, and design defects of the java-layer BInder from the perspective of design, so as to control it. For [bond],

Android -- extract file name from path, android -- Extract Method 1: Use the String classJava code Public String getFileName (String pathandname ){ Int start = pathandname. lastIndexOf ("/"); Int end = pathandname. lastIndexOf ("."); If (start! =-1 end! =-1 ){ Return pathandname. substring (start + 1, end ); } Else { Return null; } } Method 2: Us

This article describes the Android programming to achieve a mobile phone with the internal storage path to obtain the method. Share to everyone for your reference, specific as follows: I have a ZTE's Android phone, model is ZTE U930HD, the mobile phone did not insert an external SD card (that is, micro SD cards, formerly known as Trans-flash Card (TF), 2004 offi

Android master path: Serializable and Parcelable, two methods of Intent passing objects in Android In Android, two methods are passed: Serializable and Parcelable. Serializable is supported by J2SE. Parcelable is unique to Android. Use Cases and differences: 1) when using m

hi~ everyone good, out of business for almost 3 months, everything is good, some time ago spent a part-time job to do a question-and-answer class website Yqma. Want to do China's stackoverflow, haha, just yy, I hope that we support a lot! Well, today to share is the path menu simple implementation, can support the custom direction (upper left, right, lower right, lower left), and can customize the number of menus, the difficulty is the location of th

view, can be determined mainly in Payresultreceiver this Smail file, why can you determine is in this file? You can see above, there is a cancellation of the payment of Unicode, from this, we can conclude that after the cancellation of the payment click, will be executed onfailure, we can change this onfailure to onsuccess, which is equivalent to calling onsuccess methodHowever, personally think this method in this app is not good, because payresultreceiver this smail file has three places need

Path to Android Development 7-UI component 2 Today, we continue to learn about the UI components, mainly including TextView and EditText. TextView component introduction: Subclass: Button, CheckdTextView, Cheronometer, DigitalClock, EditText Indirect subclass: AutoCompleteTextView, CheckBox, CommpoundButton, MultiAutoCompleteTextView In its xml file, there are many attributes mentioned today, for example:

Android architect path-oop, android architecture-oop I hereby declare that I am learning about the android architecture. This blog is equivalent to my learning notes and a full manual code word. Some of the content is based on the ppt handouts of the android researcher Gao h

Android cultivation path-get the height of the soft keyboard and android CultivationThe keyboard is automatically displayed. editText = (EditText) findViewById(R.id.edit_text); editText.setFocusable(true); editText.setFocusableInTouchMode(true); editText.requestFocus(); InputMethodManager imm = imm.showSoftInput( edtsearch_title, InputMethodManager.RES

use the implicit Start browser method above, our custom activity will also be started at the same time.Examples include the following:Setting the Intent-filter scheme in the manifest file is limited to HTTP, so it is possible to intercept the intent of all actions to start with HTTP Android.intent.action.VIEW data.When we start the activity implicitly, our own activity is also activated.Intent Intent = new Intent () intent.setaction (Intent.action_view); Intent.setdata (Uri.parse ("http://www.b

1. The so-called manifest file is the Androidmanifest.xml file in the project. This file is, however, of great use. Analogy: The app's name, icon. App supports the version number of the app's package name and so on. I'll show you the role of each of the parameters in this list file below. Display units in 2.android 1..PX (pixels) The general HVGA represents 320*480 pixels, which is used much more2..dip or DP (device independent pixels). This ha

1, priority SD card, otherwise dataFile Cachedir; //prevent the phone from having an SD card, or the SD is just being removed if(Environment.MEDIA_MOUNTED.equals (Environment. Getexternalstoragestate ())|| !environment.isexternalstorageremovable ()) { //New file (file dir, String name), a name folder is created in Dir's directory and returned//the path to the Getexternalcachedir is/sdcard/

Environment Common methods:* Method: Getdatadirectory ()Explanation: Return File to get the Android data directory.* Method: Getdownloadcachedirectory ()Explanation: Return File to get the Android download/cache content directory.* Method: getExternalStorageDirectory ()Explanation: Return File, Get External storage directory is SDcard* Method: Getexternalstoragep

Package com. guo;Import java. io. File;Import android. app. Activity;Import android. graphics. Bitmap;Import android. graphics. BitmapFactory;Import android. OS. Bundle;Import android. view. View;Import android. view. View. OnClic