[移动开发]wifi热点setting

1、wifi原生setting的入口在WifiTetherSettings.java

packages/apps/Settings/src/com/android/settings/wifi/tether/WifiTetherSettings.java

• WifiTetherSettings???????层

开启热点和关闭热点的最后是使用ConnectivityManager的 startTethering 和 stopTethering

packages/apps/Settings/src/com/android/settings/wifi/tether/WifiTetherSwitchBarController.java

    void stopTether() {
        mSwitchBar.setEnabled(false);
        mConnectivityManager.stopTethering(TETHERING_WIFI);
    }

    void startTether() {
        mSwitchBar.setEnabled(false);
        mConnectivityManager.startTethering(TETHERING_WIFI, true /* showProvisioningUi */,
                mOnStartTetheringCallback, new Handler(Looper.getMainLooper()));
    }

• ConnectivityManager层

frameworks/base/core/java/android/net/ConnectivityManager.java

    public void startTethering(int type, boolean showProvisioningUi,
            final OnStartTetheringCallback callback, Handler handler) {

        mTetheringManager.startTethering(request, executor, tetheringCallback);
    }

    public void stopTethering(int type) {
        mTetheringManager.stopTethering(type);
    }

• TetheringManager层???????

frameworks/base/packages/Tethering/common/TetheringLib/src/android/net/TetheringManager.java

调用到Tethering

    public void startTethering(@NonNull final TetheringRequest request,
            @NonNull final Executor executor, @NonNull final StartTetheringCallback callback) {
        getConnector(c -> c.startTethering(request.getParcel(), callerPkg, listener));
    }

    public void stopTethering(@TetheringType final int type) {

        getConnector(c -> c.stopTethering(type, callerPkg, new IIntResultListener.Stub() {
            @Override
            public void onResult(int resultCode) {
            }
        }));
    }

?

• Tethering层

frameworks/base/packages/Tethering/src/com/android/networkstack/tethering/Tethering.java

最后startTethering调用到最后是WifiManager.startTetheredHotspot,

stopTethering 调用到最后是WifiManager.stopSoftAp

    void startTethering(final TetheringRequestParcel request, final IIntResultListener listener) {
        mHandler.post(() -> {
            enableTetheringInternal(request.tetheringType, true /* enabled */, listener);
        });
    }

    private void enableTetheringInternal(int type, boolean enable,
            final IIntResultListener listener) {
        int result = TETHER_ERROR_NO_ERROR;
        switch (type) {
            case TETHERING_WIFI:
                result = setWifiTethering(enable);
                break;
            case TETHERING_USB:
                result = setUsbTethering(enable);
                break;
            case TETHERING_BLUETOOTH:
                setBluetoothTethering(enable, listener);
                break;
            default:
                Log.w(TAG, "Invalid tether type.");
                result = TETHER_ERROR_UNKNOWN_TYPE;
        }

    }

    private int setWifiTethering(final boolean enable) {
                final WifiManager mgr = getWifiManager();
                if ((enable && mgr.startTetheredHotspot(null /* use existing softap config */))
                        || (!enable && mgr.stopSoftAp())) {
                    mWifiTetherRequested = enable;
                    return TETHER_ERROR_NO_ERROR;
                }
    }

2、改热点Setting的时候可以直接只编译Settings.apk，并且替换，可以查看Android.bp文件

./system_ext/priv-app/Settings/Settings.apk