Cordova混合开发(android)

基于Cordova 8.0.0 Cordova-android 7.0.0

public static class CFragment extends CordovaFragment {

        @Override
        public void onCreate(@Nullable Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            loadUrl(launchUrl);
        }
    }

CordovaFragment

public class CordovaFragment extends Fragment {

    public static String TAG = "CordovaFragment";

    // The webview for our app
    protected CordovaWebView appView;

    private static int ACTIVITY_STARTING = 0;
    private static int ACTIVITY_RUNNING = 1;
    private static int ACTIVITY_EXITING = 2;

    // Keep app running when pause is received. (default = true)
    // If true, then the JavaScript and native code continue to run in the background
    // when another application (activity) is started.
    protected boolean keepRunning = true;

    // Flag to keep immersive mode if set to fullscreen
    protected boolean immersiveMode;

    // Read from config.xml:
    protected CordovaPreferences preferences;
    protected String launchUrl;
    protected ArrayList<PluginEntry> pluginEntries;
    protected CordovaInterfaceImpl cordovaInterface;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {

        loadConfig();
        String logLevel = preferences.getString("loglevel", "ERROR");
        LOG.setLogLevel(logLevel);

        LOG.i(TAG, "Apache Cordova native platform version " + CordovaWebView.CORDOVA_VERSION + " is starting");
        LOG.d(TAG, "CordovaActivity.onCreate()");
        if (!preferences.getBoolean("ShowTitle", false)) {
            getActivity().getWindow().requestFeature(Window.FEATURE_NO_TITLE);
        }

        if (preferences.getBoolean("SetFullscreen", false)) {
            LOG.d(TAG, "The SetFullscreen configuration is deprecated in favor of Fullscreen, and will be removed in a future version.");
            preferences.set("Fullscreen", true);
        }
        if (preferences.getBoolean("Fullscreen", false)) {
            // NOTE: use the FullscreenNotImmersive configuration key to set the activity in a REAL full screen
            // (as was the case in previous cordova versions)
            if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) && !preferences.getBoolean("FullscreenNotImmersive", false)) {
                immersiveMode = true;
            } else {
                getActivity().getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                        WindowManager.LayoutParams.FLAG_FULLSCREEN);
            }
        } else {
            getActivity().getWindow().setFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN,
                    WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
        }
        super.onCreate(savedInstanceState);
        cordovaInterface = makeCordovaInterface();
        if (savedInstanceState != null) {
            cordovaInterface.restoreInstanceState(savedInstanceState);
        }
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        return appView.getView();
//        return super.onCreateView(inflater, container, savedInstanceState);
    }

    protected void init() {
        appView = makeWebView();
        createViews();
        if (!appView.isInitialized()) {
            appView.init(cordovaInterface, pluginEntries, preferences);
        }
        cordovaInterface.onCordovaInit(appView.getPluginManager());

        // Wire the hardware volume controls to control media if desired.
        String volumePref = preferences.getString("DefaultVolumeStream", "");
        if ("media".equals(volumePref.toLowerCase(Locale.ENGLISH))) {
            getActivity().setVolumeControlStream(AudioManager.STREAM_MUSIC);
        }
    }


    @SuppressWarnings("deprecation")
    protected void loadConfig() {
        ConfigXmlParser parser = new ConfigXmlParser();
        parser.parse(getActivity());
        preferences = parser.getPreferences();

        preferences.setPreferencesBundle(getActivity().getIntent().getExtras());
        launchUrl = parser.getLaunchUrl();
        pluginEntries = parser.getPluginEntries();
        Config.parser = parser;
    }

    //Suppressing warnings in AndroidStudio
    @SuppressWarnings({"deprecation", "ResourceType"})
    protected void createViews() {
        //Why are we setting a constant as the ID? This should be investigated
        appView.getView().setId(100);
        appView.getView().setLayoutParams(new FrameLayout.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));

//        setContentView(appView.getView());

        if (preferences.contains("BackgroundColor")) {
            try {
                int backgroundColor = preferences.getInteger("BackgroundColor", Color.BLACK);
                // Background of activity:
                appView.getView().setBackgroundColor(backgroundColor);
            }
            catch (NumberFormatException e){
                e.printStackTrace();
            }
        }

        appView.getView().requestFocusFromTouch();
    }

    /**
     * Called when the system is about to start resuming a previous activity.
     */
    @Override
    public void onPause() {
        super.onPause();
        LOG.d(TAG, "Paused the activity.");

        if (this.appView != null) {
            // CB-9382 If there is an activity that started for result and main activity is waiting for callback
            // result, we shoudn't stop WebView Javascript timers, as activity for result might be using them
            boolean keepRunning = this.keepRunning || this.cordovaInterface.activityResultCallback != null;
            this.appView.handlePause(keepRunning);
        }
    }

    @Override
    public void onResume() {
        super.onResume();
        LOG.d(TAG, "Resumed the activity.");

        if (this.appView == null) {
            return;
        }
        // Force window to have focus, so application always
        // receive user input. Workaround for some devices (Samsung Galaxy Note 3 at least)
        getActivity().getWindow().getDecorView().requestFocus();

        this.appView.handleResume(this.keepRunning);
    }

    @Override
    public void onStop() {
        super.onStop();
        LOG.d(TAG, "Stopped the activity.");

        if (this.appView == null) {
            return;
        }
        this.appView.handleStop();
    }

    @Override
    public void onStart() {
        super.onStart();
        LOG.d(TAG, "Started the activity.");

        if (this.appView == null) {
            return;
        }
        this.appView.handleStart();
    }

    @Override
    public void onDestroy() {
        LOG.d(TAG, "CordovaActivity.onDestroy()");
        super.onDestroy();

        if (this.appView != null) {
            appView.handleDestroy();
        }
    }


    @Override
    public void startActivityForResult(Intent intent, int requestCode, @Nullable Bundle options) {
        cordovaInterface.setActivityResultRequestCode(requestCode);
        super.startActivityForResult(intent, requestCode, options);
    }

    /**
     * Called when an activity you launched exits, giving you the requestCode you started it with,
     * the resultCode it returned, and any additional data from it.
     *
     * @param requestCode The request code originally supplied to startActivityForResult(),
     *                    allowing you to identify who this result came from.
     * @param resultCode  The integer result code returned by the child activity through its setResult().
     * @param intent      An Intent, which can return result data to the caller (various data can be attached to Intent "extras").
     */
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
        LOG.d(TAG, "Incoming Result. Request code = " + requestCode);
        super.onActivityResult(requestCode, resultCode, intent);
        cordovaInterface.onActivityResult(requestCode, resultCode, intent);
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        cordovaInterface.onSaveInstanceState(outState);
        super.onSaveInstanceState(outState);
    }

    /**
     * Called by the system when the device configuration changes while your activity is running.
     *
     * @param newConfig The new device configuration
     */
    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        if (this.appView == null) {
            return;
        }
        PluginManager pm = this.appView.getPluginManager();
        if (pm != null) {
            pm.onConfigurationChanged(newConfig);
        }
    }


    /**
     * Called by the system when the user grants permissions
     *
     * @param requestCode
     * @param permissions
     * @param grantResults
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, String permissions[],
                                           int[] grantResults) {
        try
        {
            cordovaInterface.onRequestPermissionResult(requestCode, permissions, grantResults);
        }
        catch (JSONException e)
        {
            LOG.d(TAG, "JSONException: Parameters fed into the method are not valid");
            e.printStackTrace();
        }

    }



    /**
     * Construct the default web view object.
     * <p/>
     * Override this to customize the webview that is used.
     */
    protected CordovaWebView makeWebView() {
        return new CordovaWebViewImpl(makeWebViewEngine());
    }

    protected CordovaWebViewEngine makeWebViewEngine() {
        return CordovaWebViewImpl.createEngine(getActivity(), preferences);
    }

    protected CordovaInterfaceImpl makeCordovaInterface() {
        return new CordovaInterfaceImpl(getActivity()) {
            @Override
            public Object onMessage(String id, Object data) {
                // Plumb this to CordovaActivity.onMessage for backwards compatibility
                return CordovaFragment.this.onMessage(id, data);
            }
        };
    }

    /**
     * Load the url into the webview.
     */
    public void loadUrl(String url) {
        if (appView == null) {
            init();
        }

        // If keepRunning
        this.keepRunning = preferences.getBoolean("KeepRunning", true);

        appView.loadUrlIntoView(url, true);
    }

    /**
     * Called when a message is sent to plugin.
     *
     * @param id   The message id
     * @param data The message data
     * @return Object or null
     */
    public Object onMessage(String id, Object data) {
        if ("onReceivedError".equals(id)) {
            JSONObject d = (JSONObject) data;
            try {
                this.onReceivedError(d.getInt("errorCode"), d.getString("description"), d.getString("url"));
            } catch (JSONException e) {
                e.printStackTrace();
            }
        } else if ("exit".equals(id)) {
            getActivity().finish();
        }
        return null;
    }

    /**
     * Report an error to the host application. These errors are unrecoverable (i.e. the main resource is unavailable).
     * The errorCode parameter corresponds to one of the ERROR_* constants.
     *
     * @param errorCode   The error code corresponding to an ERROR_* value.
     * @param description A String describing the error.
     * @param failingUrl  The url that failed to load.
     */
    public void onReceivedError(final int errorCode, final String description, final String failingUrl) {
        final CordovaFragment me = this;

        // If errorUrl specified, then load it
        final String errorUrl = preferences.getString("errorUrl", null);
        if ((errorUrl != null) && (!failingUrl.equals(errorUrl)) && (appView != null)) {
            // Load URL on UI thread
            getActivity().runOnUiThread(new Runnable() {
                public void run() {
                    me.appView.showWebPage(errorUrl, false, true, null);
                }
            });
        }
        // If not, then display error dialog
        else {
            final boolean exit = !(errorCode == WebViewClient.ERROR_HOST_LOOKUP);
            getActivity().runOnUiThread(new Runnable() {
                public void run() {
                    if (exit) {
                        me.appView.getView().setVisibility(View.GONE);
                        me.displayError("Application Error", description + " (" + failingUrl + ")", "OK", exit);
                    }
                }
            });
        }
    }

    /**
     * Display an error dialog and optionally exit application.
     */
    public void displayError(final String title, final String message, final String button, final boolean exit) {
        final CordovaFragment me = this;
        getActivity().runOnUiThread(new Runnable() {
            public void run() {
                try {
                    AlertDialog.Builder dlg = new AlertDialog.Builder(getActivity());
                    dlg.setMessage(message);
                    dlg.setTitle(title);
                    dlg.setCancelable(false);
                    dlg.setPositiveButton(button,
                            new AlertDialog.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                    dialog.dismiss();
                                    if (exit) {
                                        getActivity().finish();
                                    }
                                }
                            });
                    dlg.create();
                    dlg.show();
                } catch (Exception e) {
                    getActivity().finish();
                }
            }
        });
    }



}

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