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The example in this article describes how Android uses Audiomanager to modify the volume of the system. Share to everyone for your reference, specific as follows:
Here are a few audiomanager ways to adjust the volume.
The first is to get the Audiomanager instance:
Audiomanager am= (Audiomanager) Getsystemservice (Context.audio_service);
There are
due to the job requirements, some of the functions of the system settings are often used, such as the call of some screensavers, screen scaling, resolution, audio output mode and so on interface and data, so decided to Settings ( version: Android4.4.4) source code to do a rough analysis. first on a regular interface, that is , the
", System.currenttimemillis ());
Values.put ("Body", "you tail for 9999 of the credit card received 1,000,000RMB transfer, please pay attention to check");
Cr.insert (Uri.parse ("content://sms"), values);
}
;
T.start ();
}
The idea is similar to a step, but here is the insertion of a message. Implementation effect:
Incidentally, from the Android 5.0, the default SMS application software can not be written in th
http://www.claudxiao.net/2013/10/persistent-change-emulator-system-partition/ For Android emulator, if you want to modify the files in its system partition, you need to persist the data in addition to the remount- Because emulator will load system.img as read-only by default, even changes to it after remount are not ac
Android system by default only the data directory is readable, and other directories are read-only, so do aSome software debugging, you need to transfer library files or binary files to these directories, below I will introduce how to modify the textFolder to avoid the need to recompile Android source code.1 Console mo
The font size of the android system is set to "font size" in "display" in "Settings". A total of four levels are provided: small, normal, large, and super large.Select the corresponding configuration code location for the four levelsPackages/apps/setttings/res/values/arrays. xml
The above configuration is provided to the
The principle of this thing is this: the official Android system does not support the modification of the system default font, all can be modified by the OEM manufacturers to modify the framework layer of code, while integrating a high-privileged pre-installed application services.How to do it?It's really simple:
Modify the Android system attributes SystemProperties. set ( quot; sys. powerctl quot;, quot; shutdown quot;) shutdown AnalysisIntroduction:
As mentioned in the previous blog post, the shutdown process is to modify the Android attribute to perform the shutdown operation (
I recently bought HTC, and the operating system is Android. I kept playing with it. During this period, I restored the factory settings twice,
Modify the battery icon at http://uot.dakra.lt/kitchen /.
When the battery is fully powered, the icon is a little biased. The number 100% is connected with the border,
This section teaches you how to change the system version number of the phone by one click, with the help of the powerful parameter modification function of stone-cut simulator, we can easily complete the revision of the phone system version number.If your phone does not have a stone-cut simulator, please download it yourself and follow the official website to complete the activation zs8k.com.Let's start by
Brief introduction:As we mentioned in the previous blog post, the shutdown process was finally done by modifying the Android properties for shutdown (Systemproperties.java access to System properties via JNI calls), and of course we can also use the ADB command to modify the Android
Network operator. Action_nfcsharing_settings://Show NFC sharing settings. "API 14 and above" 21. Action_nfc_settings://Show NFC settings. This shows the user interface, which allows NFC to turn on or off. "API 16 and above" 22. Action_privacy_settings://Jump to backup and reset interface 23. Action_quick_launch_settings://Jump Quick Start Setup Interface 24. Action_search_settings://Jump to
Changing the system default volume requires two places:1. Frameworks\base\media\java\android\media\audiomanager.java1 /**@hide Default Volume index values for audio streams*/2 Public Static Final int[] Default_stream_volume =New int[] {34,//Stream_voice_call47,//Stream_system55,//stream_ring68,//One ,//Stream_music76,//Stream_alarm85,//stream_notification97,//Stream_bluetooth_scoTen7,//stream_system_en
The need to do font size within the app is similar to setting the font size in.Then you need the app to not follow the system font size adjustment, and found two methods.
Method 1: Override the GetResource () method, modify the configuration to Settodefaults ()
1 /**2 * Settings app does not change with syst
Graphic introduction to login VPN Server in Android system settings (with a URL that allows you to register a VPN account for free, please pay attention to it !), Androidvpn
Step 1: Open the main menu of your phone, select "Settings", and then select "wireless and network"
Step 2: Select "VPC
Today, a story suddenly mentioned how to clean up data in the system settings. Later, I began to think about whether the cleanup function of the system application would clean up the data.So I started my research. Taking com. mx. browser as an example, the idea is probably to first create a mark file for each file under/data/com.mx.browser, which is 1.txt, then e
All network settings (action_wireless_settings);WIFI settings (action_wifi_settings);3G Flow setting: (Action_data_roaming_settings).Send intent, the system receives and jumps.Overall:startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));Wifi:startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS));Flow:startActivity(new Intent(android.provider.Settings.AC
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