add fingerprint android

1. Add a contact logic idea(1) First create a new ID in raw_contacts(2) Add this ID to the data table2. Below is a case that explains how to add a data to a contact:(1) First of all, we focus on the layout file,Activity_main.xml, as follows:1 Relativelayoutxmlns:android= "Http://schemas.android.com/apk/res/android"2 Xm

The "Contact for Android acquisition System" above describes how to get the system contact and the actual combat, this article will explain how to add a contact informationAdd a Contact1. Add the Raw_contacts table and add a contact ID2. Manipulate the data table, insert the contact information, and each contact data c

First step: View USB Device informationIn terminal input: System_profiler Spusbdatatype can view information for connected USB devicesFor example, my USB information is as follows (part of the content):View the vendor id:0x04e8 on my Android phone, which is a unique identifier for the phone associated with the computer.Step Two: Create and modify the Adb_usb.ini fileEnter: VI ~/.android/adb_usb.ini command,

If you want to add a ringtone to the Android system, you can use the ADB push method. However, if you want to modify the system multiple times, it will be too difficult to push it in. Here is a simple method, it is to compile the ringtone into the Android system. in the imgfile, the ringtone is automatically added every time you brush the image. If you don't tal

In the layout, the textview text is too long and you want to add a scroll bar for it so that the text can be displayed in a scroll manner. The method retrieved through the network is actually very simple. It is to add the Android: scrollbars attribute to the textview in the layout file. The parameter can be either horizontal or vertical scrolling.

Android Studio Add AdMob googgle Play ServicesImport Com.google.android.gms.ads.AdRequest;Import Com.google.android.gms.ads.AdListener;Import Com.google.android.gms.ads.InterstitialAd;Import Com.google.android.gms.ads.MobileAds;Private Interstitialad Minterstitialad;//Initialize the Mobile Ads SDK. Mobileads.initialize (Getapplicationcontext (), "ca-app-pub-8067415904846806/59920985"); //Create the Interst

classQuestionsmainextendsBaseactivityImplementstextview.onclicklistener{PrivateTextView fragment1; PrivateTextView Fragment2; PrivateTextView Fragment3; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); Setcontentview (R.layout.activity_question_main); Initview (); } Private voidInitview () {((TextView) Findviewbyid (R.id.question_text)). SetTextColor (Getresources (). GetColor ( r.color.colortextchecked)); Fragment1=(TextView

Original: Android Project Combat (36): Add shadow effect to backgroundRounded background You should always use:A drawable resource file that controls corner fillets and solid fill colors"http://schemas.android.com/apk/res/android"> "@dimen/dp_2">" @color/standard_main ">On this basis, a rounded background with shaded effect is implementedThe code is as follows

Objective: The previous articles introduced motion tweens, frame-by-step animations, property animations, most of which are animated for view, so how do you add animations for a viewgroup? Today, combine custom ViewGroup to learn about layout animations. This article will learn about layout animations by setting up animations for custom picture selection controls. Customize a viewgroup that displays multiple lines of pictures: Here is no longer a c

it. The text box is the system defaultTextView TV =(TextView) Convertview.findviewbyid (Android. R.ID.TEXT1); Tv.settext (Objects[position]); Tv.settextsize (18);//The setting of display text is implemented herereturnConvertview; } @Override PublicView GetView (intposition, View Convertview, ViewGroup parent) { //This function modifies the size of the font displayed on the screen after selecting something in spin

In this paper, an example shows the Android implementation of the activity interface switch to add animation effects, for the Android program designers have a good reference value. The specific methods are as follows: People who know about Android design should know that after And