to know first is how to deliver, throw, shipping route, and shipping destination.3. Basic Structure of surface flinger
Shows the basic composition framework of surface flinger.
Surfaceflinger management object:
1) mclientsmap: manages the connection between the client and the server.
2) isurface, isurfacecomposer: aidl call interface instance
3) mlayermap: The management object of the server surface.
4) mcurrentstate. layerssortedbyz: layer array arranged in the Z-order sequence of the surfac
Original: http://blog.csdn.net/johnwcheung/article/details/71576833Android under the device debugging, if the device provides a driver, according to the manufacturer's driver debugging can be, the device does not provide the driver, only in accordance with the common method of debugging.For Smart POS, cash registers, and other printing devices, how can the print
Apply button in the lower right corner.
If there is nothing wrong with the settings above, then click "Run" on the interface to see that our program is running normally on Android devices.
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Record the problem: when something is done, there is always a slight deviation, and when I connect the Android
command to assign the file to the maximum operation permissions, but the system is still prompted to do not have permission. On the internet there are said to use the ADB pull command can, but tried still not, as follows:WORKAROUND: I am not rooted in the case, the need to export the file to use the command copy to the SDcard directory, and then install the "x-plore" File Manager in the emulator, with the manager
After the system is reinstalled for a long time, the android SDK that was previously installed cannot start the simulator. The following solutions are available for searching on the network:
Http://www.cnblogs.com/hlt1988321/archive/2010/10/17/1853736.html
Android simulator error, emulator: Error: Unknown Virtual Device name cause: the default position
There are two ways to create AVD: one is to create it directly on the eclipse platform, and the other is to create it in the command line (both methods are simple)
Create AVD in eclispe first
On the eclispe menu bar, select the 'window' option and select 'android SDK and AVD Manager'
Click new to create AVD.
Click new to bring up the create new Android Virtual
://www.shuame.com/root/Re File Manager: http://shouji.baidu.com/software/22415959.htmlDownload two tools from the link above, one to get the root of the device (don't worry, it's not a brush, it's not a good idea to make the device brick.) And simple operation, one-click root), one is root after viewing, modify the device
Device administrator Devices adminGets the devicepolicymanager object, via getsystemservice (device_policy_manager), device policy managerCall the Devicepolicymanager object's locknow () method, lock, and report a security exception at this timeCreate a new class MyAdmin inherit the system deviceadminreceiver, this is the broadcast receiverManifest file to registerAdd node, set nameSet permissions android:
First case:The official simulator has also been launched into the Android phone interface, but the device is not visible on Android device Chooser, what should I do?As shown, use the reset adbor run the following command in the ADB directory (typically Android_sdk_home\platform-tools)ADB kill-serverADB start-serverThe
;
Use Devicepolicymanager to set the policy of the password definition
void
updatepolicies () {
Sharedpreferences prefs = getsamplepreferences (this);
Final int pwquality = Prefs.getint (pref_password_quality,
devicepolicymanager.password_quality_unspecified);
Final int pwlength = prefs.getint (pref_password_length, 0);
Final int maxfailedpw = prefs.getint (PREF_MAX_FAILED_PW, 0);
Boolean active = Mdpm.isadminactive (mdeviceadminsample)
Modify the Android device information. for example, change the mobile phone model to the iPhone 7 Gold and local version !. Modify the Android device information. for example, change the mobile phone model to the iPhone 7 Gold and local version! First, you must have the ROOT permission on your mobile phone. if there is
Modify Adb_usb.iniEnd the ADB command in Task Manager, and then modify the following (may have an impact)Locate or create a new adb_ in the directory where the emulator resides No third-party software ever! Measured environment: Hisense Plate, M3101BW Win7, the ADB cannot find the device. The above 1, 22 steps are indispensable. Workaround: C \ user \melon (own account name) \.
Start with two open source projects one is Google's Open source project: https://code.google.com/archive/p/android-serialport-api/The other is the open source project we introduced this time: https://github.com/mik3y/usb-serial-for-android First step: Get all the plugged-in serial drivers1 Usbmanager manager = (usbmanager) Getsystemservice (context.usb_service);
If you ' re has this same issue the problem is probably an out-of-date SDK. As of Android 4.2.2 There is a security feature this requires you to confirm the RSA fingerprint of the Connectin G device. As the following screenshot: Update ADB TOOL 1. Open the SDK Manager and update the tools! Then reboot. 2. OR Donwload the ADB from the link: Http://dl.vmall.com/c
First of all, your mobile phone must have root authority, the risk of misoperation should be cautiousPlease turn on the phone's USB debugging, prevent the phone from changing after the inability to start the repair caused by1, if you are on the phone changes, directly using the RE file manager, edit the/system/build.prop file, findro.product.model=k333Ro.product.brand=ssChange intoRo.product.model=iphone7 Gold Local tyrants version ro.product.brand=ap
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