更改系統的藍芽wifi 熱點訊息通知sleep 新增 never選項
今天拿到一個客戶新的訂單需求，大概有40多個需求，今天先講更改系統的藍芽/wifi 熱點/訊息通知/sleep 新增 never選項，分別是：
藍芽：連線顯示名、系統介面顯示名字，重新命名前的預設名字
wifi 熱點：連線名字，重新命名前預設 Network name
Notification popup ：系統 Notification popup 預設不勾選
休眠新增never選項，預設30s：新增永不休眠，預設30s
首先我們要知道系統預設的藍芽名字 ANDROID BT
Linux input ...> find 你的原始碼根目錄/ -type f|xargs grep "ANDROID BT" -l
這句命令是找出原始碼下所有帶有字串 ANDROID BT 所在的檔案，搜尋無果，直接進入原始碼
packages\apps\Settings\src\com\android\settings\bluetooth\BluetoothSettins.java
跟蹤原始碼找到如下程式碼
@Override
public void onResume() {
......
if (mLocalAdapter != null) {
updateContent(mLocalAdapter.getBluetoothState());
}
}跟蹤updateContent函式，修改如下程式碼
if (mMyDevicePreference == null) {
mMyDevicePreference = new Preference(getActivity());
}
// Engineer-Jsp add default bluetooth name
if (android.os.SystemProperties.isWalPadVersion()) {
mMyDevicePreference.setSummary(getResources().getString(
R.string.bluetooth_is_visible_message, "Walpad C"));
}else{
mMyDevicePreference.setSummary(getResources().getString(
R.string.bluetooth_is_visible_message, mLocalAdapter.getName()));
}
mMyDevicePreference.setSelectable(false);其中 isWalpadVersion 函式是我在frameworks/base/core/java/android/os/SystemProperties.java中定義的
public static boolean isWalPadVersion(){
return SystemProperties.get("ro.product.model").contains("Walpad");
}
根據編譯檔案設定的客戶平板型號定製產品而定，這樣寫有人可能會覺得多此一舉，顯的麻煩，但是作為一個系統，能把它做成相容模式豈不是更好？
因為下次再有系統定製訂單需求，我們只需要修改配置檔案和分支就夠了，輕鬆方便，而不需要再去new 程式碼了
setSummary(...,...)函式就是藍芽設定開啟藍芽之後在介面顯示的效果
R.string.bluetooth.is.visible_message 內容：
<string name="bluetooth_is_visible_message"><xliff:g id="device_name">%1$s</xliff:g> is visible to nearby devices while Bluetooth Settings is open.</string>device_name 即為我們替換的名字，即Walpad C
接下來修改重名命選項的藍芽裝置名稱，onOptionsItemSelected(MenuItem item) 根據 item 追蹤重新命名的 Dialog 找到如下邏輯：
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
......
mAlertDialog = new AlertDialog.Builder(getActivity())
.setTitle(R.string.bluetooth_rename_device)
.setView(createDialogView(deviceName))// 繼續追蹤createDialogView(deviceName)方法
......
return mAlertDialog;
}
根據邏輯，修改如下：
private View createDialogView(String deviceName) {
......
// Engineer-Jsp add default bluetooth name
if (android.os.SystemProperties.isWalPadVersion()) {// 根據model顯示名稱
mDeviceNameView.setText("Walpad C");
}else{
mDeviceNameView.setText(deviceName); // set initial value before adding listener
}
......
return view;
}
連線顯示名修改：
// Engineer-Jsp add default bluetooth name
if (android.os.SystemProperties.isWalPadVersion()) {
mMyDevicePreference.setSummary(getResources().getString(
R.string.bluetooth_is_visible_message, "Walpad C"));
mLocalAdapter.setName("Walpad C");//在之前講到的修改除再新增此句
}else{
mMyDevicePreference.setSummary(getResources().getString(
R.string.bluetooth_is_visible_message, mLocalAdapter.getName()));
}
修改wifi重新命名前的名字，根據資訊搜尋到原始碼packages\apps\Settings\src\com\android\settings\wifi\WifiApDialog.java
根據邏輯，查詢到如下程式碼：
@Override
protected void onCreate(Bundle savedInstanceState) {
Context context = getContext();
......
if (mWifiConfig != null) {
// Engineer-Jsp add default bluetooth name
if (android.os.SystemProperties.isWalPadVersion()) { //根據型號顯示ssid
mSsid.setText("Walpad C");
}else{
mSsid.setText(mWifiConfig.SSID);
}
/// M: set selection
mSecurity.setSelection(mExt.getSelection(mSecurityTypeIndex));
if (mSecurityTypeIndex == WPA2_INDEX) {
mPassword.setText(mWifiConfig.preSharedKey);
}
///M: get configured channel @{
mChannel = mWifiConfig.channel;
mChannelWidth = mWifiConfig.channelWidth;
/// @}
}
......
}
修改系統 Notification popup 預設不勾選
搜尋關鍵字：原始碼目錄...>find ./ -name ".xml" | xargs grep "Popup notification"
找到xml檔案之後找到對應string name 名稱，發現他被一個佈局檔案呼叫，packages\apps\Mms\res\xml\notificationpreferences.xml
- pref_summary_popup_notification -
defaultValue="false" 把這個預設false，即可
修改休眠選項預設 30s 新增永不休眠選項：
預設休眠30s修改：frameworks\base\packages\SettingsProvider\res\values\defaults.xml
<integer name="def_screen_off_timeout">30000</integer>
新增永不休眠選項：
private static final boolean sNeedScreenTimeoutNever = true;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
......
if (sNeedScreenTimeoutNever && mScreenTimeoutPreference != null) { //rmt add
Resources res = getResources();
final String[] entries = res.getStringArray(R.array.screen_timeout_entries);
final String[] values = res.getStringArray(R.array.screen_timeout_values);
int entriesLength = entries.length;
final String[] newEntries = new String[entriesLength + 1];
for (int i = 0; i < entriesLength + 1; i++) {
if (i != entriesLength) {
newEntries[i] = entries[i];
} else {
newEntries[i] = res.getString(R.string.zen_mode_when_never);
}
}
int valuesLength = values.length;
final String[] newValues = new String[valuesLength + 1];
for (int i = 0; i < valuesLength + 1; i++) {
if (i != valuesLength) {
newValues[i] = values[i];
} else {
newValues[i] = "2147483647";
}
}
mScreenTimeoutPreference.setEntries(newEntries);
mScreenTimeoutPreference.setEntryValues(newValues);
......
}
private void updateTimeoutPreferenceDescription(long currentTimeout) {
......
} else if(currentTimeout == Integer.MAX_VALUE) { //Engineer-Jsp add
summary = preference.getContext().getString(R.string.zen_mode_when_never);
}
.......
}