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This article mainly shows you "how to remove the 3G icon of Android 2.1mobile devices". It is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn this article "how to remove the 3G icon of Android 2.1mobile devices".

Attractive elements such as the Android 2.1system and the 7-inch touchscreen make people look forward to the actual experience of using the T7, but the actual experience is not as good as imagined. It must have something to do with the multitasking operation of the Android system, and the parallelism of multiple programs will definitely affect the overall running speed. In addition, it has something to do with the hardware configuration of T7. The main frequency of T7 processor is about 600MHz, and the starting speed is quite good. After opening more programs, it slows down gradually.

So if you think the running speed is slow, open the Advanced Task Manager and close some unnecessary programs to improve the speed of use. With regard to the Android system itself and the many applications in the software market, we will not try them all here, but choose a few major applications to test the user experience.

Today, the mobile phone, 3G and other signal pictures in the status bar in android 2.1are removed, because the development of android 2.1is used as a MID terminal, the mobile phone module is not needed, and the signal is not in harmony on the status bar.

Table of contents:

Frameworks/base/services/java/com/android/server/status/StatusBarPolicy.java

It mainly removes two parts:

(1) remove the following code about mobile phone signal from private StatusBarPolicy (Context context, StatusBarService service)

/ * phone_signal mPhone = (TelephonyManager) context.getSystemService (Context.TELEPHONY_SERVICE); mPhoneData = IconData.makeIcon ("phone_signal", null, com.android.internal.R.drawable.stat_sys_signal_null, 0,0); mPhoneIcon = service.addIcon (mPhoneData, null); / / register for phone state notifications. ((TelephonyManager) mContext.getSystemService (Context.TELEPHONY_SERVICE)) .notify (mPhoneStateListener PhoneStateListener.LISTEN_SERVICE_STATE | PhoneStateListener.LISTEN_SIGNAL_STRENGTHS | PhoneStateListener.LISTEN_CALL_STATE | PhoneStateListener.LISTEN_DATA_CONNECTION_STATE | PhoneStateListener.LISTEN_DATA_ACTIVITY) / / data_connection mDataData = IconData.makeIcon ("data_connection", null, com.android.internal.R.drawable.stat_sys_data_connected_g, 0,0); mDataIcon = service.addIcon (mDataData, null); service.setIconVisibility (mDataIcon, false) * / * mCdmaRoamingIndicatorIconData = IconData.makeIcon ("cdma_eri", null, com.android.internal.R.drawable.stat_sys_roaming_cdma_0, 0,0); mCdmaRoamingIndicatorIcon = service.addIcon (mCdmaRoamingIndicatorIconData, null); service.setIconVisibility (mCdmaRoamingIndicatorIcon, false); * /

(2) remove the filtered signal.

/ / filter.addAction (TelephonyIntents.ACTION_SIM_STATE_CHANGED); and the code / * else if (action.equals (TelephonyIntents.ACTION_SIM_STATE_CHANGED)) {updateSimState (intent) in the acceptance method onReceive (Context context, Intent intent);} * / above is all the content of the article "how to remove the 3G icon of Android 2.1 mobile devices". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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