Android5.1-7.1系统（framework）定制、修改、移植、总结-上篇Android 5.1 - 7.1 系统(framework)定制、修改、移植、总结 - 上篇
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⽬录
1：修改开机logo
修改开机logo有两种⽅法，⼀种直接去改c语⾔代码，第⼆种替换图⽚⽤python⽣成splash。第⼀种⽅法我没试过，感觉挺⿇烦的，还有分辨率限制，超过多少分辨率就不能⽤第⼀种⽅法。
1. 修改的⽂件路径LINUX/android/bootable/bootloader/lk/splash
2. 准备好logo图⽚(png、bmp格式)
3. 查看中原图⽚的分辨率，修改logo图⽚保证分辨率⼀致
4. ⽣成splash.img镜像⽂件
注：图⽚分辨率很重要！很重要！很重要！
⽣成splash.img 步骤
1.
The steps to generate a splash.img:
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1 sudo apt-get install python-imaging
4.
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2 python ./logo_gen.py boot_001.png (*.bmp)
为了减少编译时间可以直接将⽣成好的splash.img将刷机包中的⽂件替换掉。
2:Framework(SysteimUI) Android在状态栏增加⽿机拔插图标
Android 4.1在拔插⽿机时，状态栏没有提⽰图标。最近做了这个新的需求，步骤如下：
1、在\frameworks\base\packages\SystemUI\res\drawable-Xdpi下增加⼀个⽿机图⽚stat_sys_headset.png。drawable-Xdpi中的X根据⼿机的分辨率来确定，我的⼿机⽤的是drawable-hdpi；
2、在\frameworks\base\packages\SystemUI\src\com\android\systemui\statusbar\phone\PhoneStatusBarPolicy.java中增加下⾯的代码:
1.
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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String action = Action();
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if (action.equals(Intent.ACTION_ALARM_CHANGED)) {
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updateAlarm(intent);
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}
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else if (action.equals(Intent.ACTION_SYNC_STATE_CHANGED)) {
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updateSyncState(intent);
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}
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else if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED) ||
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action.equals(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED)) {
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updateBluetooth(intent);
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}
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/*add code for adding headset icon in statusbar.*/
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else if (action.equals(Intent.ACTION_HEADSET_PLUG)) {
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updateHeadsetState(intent);
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}
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//end
android软件else if (action.equals(AudioManager.RINGER_MODE_CHANGED_ACTION) ||
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action.equals(AudioManager.VIBRATE_SETTING_CHANGED_ACTION)) {
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updateVolume();
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}
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else if (action.equals(TelephonyIntents.ACTION_SIM_STATE_CHANGED)) {
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updateSimState(intent);
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}
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else if (action.equals(TtyIntent.TTY_ENABLED_CHANGE_ACTION)) {
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updateTTY(intent);
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} else if (action.equals(Intent.ACTION_LOCALE_CHANGED)) {
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// when acceptting the locale change event,reload USB connection notification.
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boolean isUsbConnected = mStorageManager.isUsbMassStorageConnected();
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}
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}
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};
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public PhoneStatusBarPolicy(Context context) {
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mContext = context;
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// init StorageNotification object
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mStorageNotification = new StorageNotification(mContext);
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mService = (SystemService(Context.STATUS_BAR_SERVICE);
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// listen for broadcasts
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IntentFilter filter = new IntentFilter();
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filter.addAction(Intent.ACTION_ALARM_CHANGED);
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filter.addAction(Intent.ACTION_SYNC_STATE_CHANGED);
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filter.addAction(AudioManager.RINGER_MODE_CHANGED_ACTION);
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filter.addAction(AudioManager.VIBRATE_SETTING_CHANGED_ACTION);
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filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
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filter.addAction(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED);
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/*add code for adding headset icon in statusbar.*/
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filter.addAction(Intent.ACTION_HEADSET_PLUG);
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//end
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filter.addAction(TelephonyIntents.ACTION_SIM_STATE_CHANGED);
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filter.addAction(TtyIntent.TTY_ENABLED_CHANGE_ACTION);
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// add locale change event filter
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filter.addAction(Intent.ACTION_LOCALE_CHANGED);
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int numPhones = Default().getPhoneCount();
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mSimState = new IccCard.State[numPhones];
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for (int i=0; i < numPhones; i++) {
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mSimState[i] = IccCard.State.READY;
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}
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// storage
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mStorageManager = (StorageManager) SystemService(Context.STORAGE_SERVICE);
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// TTY status
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mService.setIcon("tty", R.drawable.stat_sys_tty_mode, 0, null);
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mService.setIconVisibility("tty", false);
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// Cdma Roaming Indicator, ERI
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mService.setIcon("cdma_eri", R.drawable.stat_sys_roaming_cdma_0, 0, null);
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mService.setIconVisibility("cdma_eri", false);
79.
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/
/ bluetooth status
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BluetoothAdapter adapter = DefaultAdapter();
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int bluetoothIcon = R.drawable.stat_sys_data_bluetooth;
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if (adapter != null) {
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mBluetoothEnabled = (State() == BluetoothAdapter.STATE_ON);
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if (ConnectionState() == BluetoothAdapter.STATE_CONNECTED) {
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bluetoothIcon = R.drawable.stat_sys_data_bluetooth_connected;
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}
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}
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mService.setIcon("bluetooth", bluetoothIcon, 0, null);
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mService.setIconVisibility("bluetooth", mBluetoothEnabled);
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/*add code for adding headset icon in statusbar.*/
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mService.setIcon("headset", R.drawable.stat_sys_headset, 0, null);
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mService.setIconVisibility("headset", false);
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//end
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// Alarm clock
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mService.setIcon("alarm_clock", R.drawable.stat_sys_alarm, 0, null);
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mService.setIconVisibility("alarm_clock", false);
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// Sync state
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mService.setIcon("sync_active", R.drawable.stat_sys_sync, 0, null);
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mService.setIcon("sync_failing", R.drawable.stat_sys_sync_error, 0, null);
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mService.setIconVisibility("sync_active", false);
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mService.setIconVisibility("sync_failing", false);
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// volume
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mService.setIcon("volume", R.drawable.stat_sys_ringer_silent, 0, null);
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mService.setIconVisibility("volume", false);
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updateVolume();
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}
112.
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/*add code for adding headset icon in statusbar.*/
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private final void updateHeadsetState(Intent intent) {
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boolean mIsHeadsetOn = (IntExtra("state", 0) == 1);
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Slog.v(TAG, "updateHeadsetState: HeadsetState: " + mIsHeadsetOn);
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mService.setIconVisibility("headset", mIsHeadsetOn);
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}
在\frameworks\base\core\res\res\l中加⼊⽿机图标控制字段（headset）：
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<string-array name="config_statusBarIcons">
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<item><xliff:g id="id">ime</xliff:g></item>
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<item><xliff:g id="id">sync_failing</xliff:g></item>
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<item><xliff:g id="id">sync_active</xliff:g></item>
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<item><xliff:g id="id">gps</xliff:g></item>
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<item><xliff:g id="id">bluetooth</xliff:g></item>
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<item><xliff:g id="id">nfc</xliff:g></item>
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<item><xliff:g id="id">tty</xliff:g></item>
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<item><xliff:g id="id">speakerphone</xliff:g></item>
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<item><xliff:g id="id">mute</xliff:g></item>
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<item><xliff:g id="id">volume</xliff:g></item>
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<item><xliff:g id="id">wifi</xliff:g></item>
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<item><xliff:g id="id">cdma_eri</xliff:g></item>
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<item><xliff:g id="id">phone_signal_second_sub</xliff:g></item>
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<item><xliff:g id="id">data_connection</xliff:g></item>
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<item><xliff:g id="id">phone_evdo_signal</xliff:g></item>
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<item><xliff:g id="id">phone_signal</xliff:g></item>
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<item><xliff:g id="id">battery</xliff:g></item>
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<item><xliff:g id="id">alarm_clock</xliff:g></item>
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<item><xliff:g id="id">secure</xliff:g></item>
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<item><xliff:g id="id">clock</xliff:g></item>
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<item><xliff:g id="id">headset</xliff:g></item>
23.
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</string-array>
因为所加代码中的 mService.setIcon和mService.setIconVisibility最终会调⽤到StatusBarManagerService，它的构造函数有
mIcons.StringArray(com.android.internal.fig_statusBarIcons))；语句，到config_statusBarIcons所在的配置⽂件为l。如果没加，会再
seticon（StatusBarManagerService类⾥）函数⾥
3:Android--隐藏状态栏图标
⽬前状态栏图标有通知图标和系统图标
通知图标主要是指各应⽤发过来的通知，⽐如未接电话，截图，后台播放⾳乐等，系统图标主要有蓝⽛，⽿机，wifi，数据流量，时间和电池... 1，不显⽰通知图标，
在/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarIconController.java中
public void updateNotificationIcons {
for (int i = 0; i < N; i++) {
NotificationData.Entry ent = (i);
+          final String pkg = PackageName();
+          android.util.Log.d("StatusBarIconController","pkg========"+pkg);
//⽐如如果包名不是收⾳机的，就不显⽰图标
+        if (!ains("com.android.fmradio")) {
+              continue;
}
if (notificationData.isAmbient(ent.key)
&& !NotificationData.ification)) {
continue;
}
}
2.不显⽰系统图标，系统图标的显⽰是在以下⽂件，⽐如蓝⽛，wifi，⽿机等
/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/
PhoneStatusBarPolicy.java
将不要显⽰图标，将setIconVisibility()改为false即可，⽐如，如果不要闹钟图标
private void updateAlarm() {
....
- - -      mService.setIconVisibility(SLOT_ALARM_CLOCK, mCurrentUserSetup && hasAlarm);
+++ mService.setIconVisibility(SLOT_ALARM_CLOCK, false);
}
3，系统图标中⽐较特殊的时间和电池在
/frameworks/base/packages/SystemUI/res/layout/l
<com.android.systemui.statusbar.policy.Clock
android:id="@+id/clock"
android:textAppearance="@style/TextAppearance.StatusBar.Clock"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:singleLine="true"
android:paddingStart="7dp"
android:gravity="center_vertical|start"
+++            android:visibility="gone"  //时间
/
>
/frameworks/base/packages/SystemUI/res/layout/l
<com.android.systemui.BatteryMeterView android:id="@+id/battery"
android:layout_height="14.5dp"
android:layout_width="9.5dp"
+++    android:visibility="gone"      电池
android:layout_marginBottom="@dimen/battery_margin_bottom"/>
4:android 5.1 usb调试默认关闭设置⽅法
packages/apps/Provision/src/com/android/provision/DefaultActivity.java
在该⽂件中加⼊下⾯的代码：
1.
if (!android.Boolean("ro.inet.adb_enabled",true)) {
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Settings.Secure.putInt(getContentResolver(), Settings.Secure.ADB_ENABLED, 0);
3.
}
同时在system.prop中添加：
ro.inet.adb_enabled=false
5:【Audio】【⾳量曲线】【响度】如何修改⾳量曲线？
对应场景可能是：
当把媒体⾳量调到最⼩⼀级时，喇叭/⽿机⾳量仍然很⼤，如何解决？

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