how to backup android phone

Android system transplantation and debugging -------) how to modify the NFC module of the Android mobile phone so that NFC can be used in the black screen We all know that, without modifying the source code, NFC can only be used after unlocking. However, NFC cannot be used in two statuses: screen lock and black screen. However, a customer recently asked the mobil

1. The most common is that the unknown software installation failed. Unknown source, if not open we can only install the Android Market download software, if we download from the Internet can not be installed, the unknown source open method is selected in the mobile phone security settings. Workaround: Set installation permissions (figure) 2, the installation software prompts insufficient memory This

[Java] // The first method returns pixels.Display display = getWindowManager (). getDefaultDisplay ();Log. I ("MainActivity", "height:" + display. getHeight ());Log. I ("MainActivity", "width:" + display. getWidth ());// The second method returns pixels.DisplayMetrics displayMetrics = getResources (). getDisplayMetrics ();Log. I ("MainActivity", "height" + displayMetrics. heightPixels );Log. I ("MainActivity", "width" + displayMetrics. widthPixels ); // The first method returns pixels.Display di

Android ignores screen unlock protection Interface1 PrincipleAndroid has three screen unlocking protections: Pattern unlocking, PIN password unlocking, and password unlocking. The interface is as follows: Chart 1: Unlock page; Chart 2: PIN password unlock page; Chart 3: Unlock pageWe can use java. lang. object. android. app. keyguardLock, a subclass of KeyguardManger, can control the Disable screen lock int

In Android, follow these steps: A. Obtain the mobile phone vibration service through the system service. Vibrator vibrator = (Vibrator) getSystemService (VIBRATOR_SERVICE ); B. Check whether the vibrator exists after obtaining the vibration service: Vibrator. hasVibrator (); Checks whether the current hardware has a vibrator. If yes, true is returned. If no, false is returned. C. Make appropriate calls

Optimization of mobile phone storage performance and android performance in the android systemI. How is the storage performance enhanced?Ii. Enhanced storage performance: emmc standard evolution optimizes storage performanceIii. Enhanced storage performance: wrapfs replaces fuse to optimize built-in sdcard Performance Iv. Enhanced storage performance: f2fs repla

// Self-introduction of the corresponding package,1 Public classMainactivityextendsActivity {2 3@SuppressLint ("Inlinedapi") 4 @Override5 protected voidonCreate (Bundle savedinstancestate) {6 Super. OnCreate (savedinstancestate); 7 GetWindow (). Requestfeature (Window.feature_no_title); 8 if(VERSION. Sdk_int >=Version_codes. LOLLIPOP) {9window window =GetWindow (); Ten Window.clearflags (WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS One|WindowManager.LayoutParams.

In Android Backup SMS and restore SMS is very important to save information to avoid deletion of important information can not be saved, here is the operation of the SMS database, note: In Android for other applications in the database operation can not be in the form of database objects must be escaped with a URI Uri uri = Uri.parser ("content://sms/");Need to a

Android Ril-javaRil-java is essentially a RIL agent that plays a forwarding role and is the starting point of the phone system in the Android Java conceptual space. In Ril-d's analysis, we know that Rild set up a listening socket interface, waiting for Ril-java connections. Once the connection is successful, Ril-java can initiate a request, wait for the reply, an

Baidu Cloud software users to the detailed analysis to share the Baidu Cloud Android version of the "WiFi album Automatic Backup" feature tutorial. Tutorial Sharing: Baidu Cloud Android version to open "WiFi album Automatic backup" function: In the settings interface to open the "WiFi album Automatic

Try to install the Qpython before, but it is based on python2.7. I am the python3 of study, so it has been useless. Today, I found the python3.2 version of Qpython3 in the Samsung App Store, so I'm here to share it with the Android guys. The following is a partial screenshot of two software, which is fully functional. Playing Python's weapon on the phone, Qpyton. Here are two version

No more nonsense to say, directly to everyone to paste the code: The specific code looks like this: public class Miuiutils {//Detect MIUI private static final String Key_miui_version_code = "Ro.miui.ui.version.code"; private static final String Key_miui_version_name = "Ro.miui.ui.version.name"; private static final String key_miui_internal_storage = "Ro.miui.internal.storage"; The public static Boolean Ismiui () { The above code is based on Andro