Java Utils类代码示例

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
@Override
public void onReceive(Context context, Intent intent) {
    if (intent != null) {
        String action = intent.getAction();
        if (Intent.ACTION_PACKAGE_ADDED.equals(action)) {
            InstalledAppProviderService.insert(context, intent.getData());
        } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) {
            if (TextUtils.equals(context.getPackageName(), intent.getData().getSchemeSpecificPart())) {
                Utils.debugLog(TAG, "Ignoring request to remove ourselves from cache.");
            } else {
                InstalledAppProviderService.delete(context, intent.getData());
            }
        } else {
            Utils.debugLog(TAG, "unsupported action: " + action + " " + intent);
        }
    }
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
private void processIntent(Intent i) {
    if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(i.getAction())) {
        Parcelable[] rawMsgs =
                i.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
        NdefMessage msg = (NdefMessage) rawMsgs[0];
        String url = new String(msg.getRecords()[0].getPayload());
        Utils.debugLog(TAG, "Got this URL: " + url);
        Toast.makeText(this, "Got this URL: " + url, Toast.LENGTH_LONG).show();
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
        intent.setClass(this, ManageReposActivity.class);
        startActivity(intent);
        finish();
    }
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
private void setupRepoFingerprint(View parent, Repo repo) {
    TextView repoFingerprintView = (TextView) parent.findViewById(R.id.text_repo_fingerprint);
    TextView repoFingerprintDescView = (TextView) parent.findViewById(R.id.text_repo_fingerprint_description);

    String repoFingerprint;

    // TODO show the current state of the signature check, not just whether there is a key or not
    if (TextUtils.isEmpty(repo.fingerprint) && TextUtils.isEmpty(repo.signingCertificate)) {
        repoFingerprint = getResources().getString(R.string.unsigned);
        repoFingerprintView.setTextColor(getResources().getColor(R.color.unsigned));
        repoFingerprintDescView.setVisibility(View.VISIBLE);
        repoFingerprintDescView.setText(getResources().getString(R.string.unsigned_description));
    } else {
        // this is based on repo.fingerprint always existing, which it should
        repoFingerprint = Utils.formatFingerprint(this, repo.fingerprint);
        repoFingerprintDescView.setVisibility(View.GONE);
    }

    repoFingerprintView.setText(repoFingerprint);
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
/**
 * Seeing as this repo already exists, we will force it to be enabled again.
 */
private void updateAndEnableExistingRepo(String url, String fingerprint) {
    if (fingerprint != null) {
        fingerprint = fingerprint.trim();
        if (TextUtils.isEmpty(fingerprint)) {
            fingerprint = null;
        } else {
            fingerprint = fingerprint.toUpperCase(Locale.ENGLISH);
        }
    }

    Utils.debugLog(TAG, "Enabling existing repo: " + url);
    Repo repo = RepoProvider.Helper.findByAddress(context, url);
    ContentValues values = new ContentValues(2);
    values.put(RepoTable.Cols.IN_USE, 1);
    values.put(RepoTable.Cols.FINGERPRINT, fingerprint);
    RepoProvider.Helper.update(context, repo, values);
    notifyDataSetChanged();
    finishedAddingRepo();
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
/**
 * Compares to sets of APK permissions to see if they are an exact match.  The
 * data format is {@link String} arrays but they are in effect sets. This is the
 * same data format as {@link android.content.pm.PackageInfo#requestedPermissions}
 */
public static boolean requestedPermissionsEqual(@Nullable String[] expected, @Nullable String[] actual) {
    Utils.debugLog(TAG, "Checking permissions");
    Utils.debugLog(TAG, "Actual:\n  " + (actual == null ? "None" : TextUtils.join("\n  ", actual)));
    Utils.debugLog(TAG, "Expected:\n  " + (expected == null ? "None" : TextUtils.join("\n  ", expected)));

    if (expected == null && actual == null) {
        return true;
    }
    if (expected == null || actual == null) {
        return false;
    }
    if (expected.length != actual.length) {
        return false;
    }
    HashSet<String> expectedSet = new HashSet<>(Arrays.asList(expected));
    HashSet<String> actualSet = new HashSet<>(Arrays.asList(actual));
    return expectedSet.equals(actualSet);
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
/**
 * The process for setting up bluetooth is as follows:
 *  * Assume we have bluetooth available (otherwise the button which allowed us to start
 *    the bluetooth process should not have been available).
 *  * Ask user to enable (if not enabled yet).
 *  * Start bluetooth server socket.
 *  * Enable bluetooth discoverability, so that people can connect to our server socket.
 *
 * Note that this is a little different than the usual process for bluetooth _clients_, which
 * involves pairing and connecting with other devices.
 */
public void startBluetoothSwap() {

    Utils.debugLog(TAG, "Initiating Bluetooth swap, will ensure the Bluetooth devices is enabled and discoverable before starting server.");
    BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();

    if (adapter != null) {
        if (adapter.isEnabled()) {
            Utils.debugLog(TAG, "Bluetooth enabled, will check if device is discoverable with device.");
            ensureBluetoothDiscoverableThenStart();
        } else {
            Utils.debugLog(TAG, "Bluetooth disabled, asking user to enable it.");
            Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            startActivityForResult(enableBtIntent, REQUEST_BLUETOOTH_ENABLE_FOR_SWAP);
        }
    }
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
private void ensureBluetoothDiscoverableThenStart() {
    Utils.debugLog(TAG, "Ensuring Bluetooth is in discoverable mode.");
    if (BluetoothAdapter.getDefaultAdapter().getScanMode() != BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {

        // TODO: Listen for BluetoothAdapter.ACTION_SCAN_MODE_CHANGED and respond if discovery
        // is cancelled prematurely.

        // 3600 is new maximum! TODO: What about when this expires? What if user manually disables discovery?
        final int discoverableTimeout = 3600;

        Utils.debugLog(TAG, "Not currently in discoverable mode, so prompting user to enable.");
        Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
        intent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, discoverableTimeout);
        startActivityForResult(intent, REQUEST_BLUETOOTH_DISCOVERABLE);
    }

    if (service == null) {
        throw new IllegalStateException("Can't start Bluetooth swap because service is null for some strange reason.");
    }

    service.getBluetoothSwap().startInBackground();
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
@Override
public void onCreate() {
    super.onCreate();
    Utils.debugLog(TAG, "creating Service");
    localBroadcastManager = LocalBroadcastManager.getInstance(this);
    appUpdateStatusManager = AppUpdateStatusManager.getInstance(this);

    BroadcastReceiver br = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String packageName = intent.getData().getSchemeSpecificPart();
            for (AppUpdateStatusManager.AppUpdateStatus status : appUpdateStatusManager.getByPackageName(packageName)) {
                appUpdateStatusManager.updateApk(status.getUniqueKey(), AppUpdateStatusManager.Status.Installed, null);
            }
        }
    };
    IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(Intent.ACTION_PACKAGE_ADDED);
    intentFilter.addDataScheme("package");
    registerReceiver(br, intentFilter);
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
private void uiInitBluetooth() {
    if (bluetooth != null) {

        textBluetoothVisible = (TextView) findViewById(R.id.bluetooth_visible);

        viewBluetoothId = (TextView) findViewById(R.id.device_id_bluetooth);
        viewBluetoothId.setText(bluetooth.getName());
        viewBluetoothId.setVisibility(bluetooth.isEnabled() ? View.VISIBLE : View.GONE);

        int textResource = getManager().isBluetoothDiscoverable() ? R.string.swap_visible_bluetooth : R.string.swap_not_visible_bluetooth;
        textBluetoothVisible.setText(textResource);

        bluetoothSwitch = (SwitchCompat) findViewById(R.id.switch_bluetooth);
        Utils.debugLog(TAG, getManager().isBluetoothDiscoverable() ? "Initially marking switch as checked, because Bluetooth is discoverable." : "Initially marking switch as not-checked, because Bluetooth is not discoverable.");
        bluetoothSwitch.setOnCheckedChangeListener(onBluetoothSwitchToggled);
        setBluetoothSwitchState(getManager().isBluetoothDiscoverable(), true);

        LocalBroadcastManager.getInstance(getContext()).registerReceiver(onBluetoothSwapStateChanged, new IntentFilter(SwapService.BLUETOOTH_STATE_CHANGE));

    } else {
        findViewById(R.id.bluetooth_info).setVisibility(View.GONE);
    }
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
@Override
public void onReceive(Context context, Intent intent) {
    if (intent.hasExtra(SwapService.EXTRA_STARTING)) {
        Utils.debugLog(TAG, "Bluetooth service is starting (setting toggle to disabled, not checking because we will wait for an intent that bluetooth is actually enabled)");
        bluetoothSwitch.setEnabled(false);
        textBluetoothVisible.setText(R.string.swap_setting_up_bluetooth);
        // bluetoothSwitch.setChecked(true);
    } else {
        if (intent.hasExtra(SwapService.EXTRA_STARTED)) {
            Utils.debugLog(TAG, "Bluetooth service has started (updating text to visible, but not marking as checked).");
            textBluetoothVisible.setText(R.string.swap_visible_bluetooth);
            bluetoothSwitch.setEnabled(true);
            // bluetoothSwitch.setChecked(true);
        } else {
            Utils.debugLog(TAG, "Bluetooth service has stopped (setting switch to not-visible).");
            textBluetoothVisible.setText(R.string.swap_not_visible_bluetooth);
            setBluetoothSwitchState(false, true);
        }
    }
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
    if (isChecked) {
        Utils.debugLog(TAG, "Received onCheckChanged(true) for Bluetooth swap, prompting user as to whether they want to enable Bluetooth.");
        getActivity().startBluetoothSwap();
        textBluetoothVisible.setText(R.string.swap_visible_bluetooth);
        viewBluetoothId.setVisibility(View.VISIBLE);
        Utils.debugLog(TAG, "Received onCheckChanged(true) for Bluetooth swap (prompting user or setup Bluetooth complete)");
        // TODO: When they deny the request for enabling bluetooth, we need to disable this switch...
    } else {
        Utils.debugLog(TAG, "Received onCheckChanged(false) for Bluetooth swap, disabling Bluetooth swap.");
        getManager().getBluetoothSwap().stop();
        textBluetoothVisible.setText(R.string.swap_not_visible_bluetooth);
        viewBluetoothId.setVisibility(View.GONE);
        Utils.debugLog(TAG, "Received onCheckChanged(false) for Bluetooth swap, Bluetooth swap disabled successfully.");
    }
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
static void symlinkRuntime(SanitizedFile source, SanitizedFile dest) {
    String[] commands = {
        FDroidApp.SYSTEM_DIR_NAME + "/bin/ln",
        "-s",
        source.getAbsolutePath(),
        dest.getAbsolutePath(),
    };
    try {
        Utils.debugLog(TAG, "Executing command: " + commands[0] + " " + commands[1]
                + " " + commands[2] + " " + commands[3]);
        Process proc = Runtime.getRuntime().exec(commands);
        Utils.consumeStream(proc.getInputStream());
        Utils.consumeStream(proc.getErrorStream());
    } catch (IOException e) {
        // Do nothing
    }
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
@Override
public void onReceive(Context context, Intent intent) {
    int statusCode = intent.getIntExtra(UpdateService.EXTRA_STATUS_CODE, -1);
    switch (statusCode) {
        case UpdateService.STATUS_COMPLETE_WITH_CHANGES:
            Utils.debugLog(TAG, "Swap repo has updates, notifying the list adapter.");
            getActivity().runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    adapter.notifyDataSetChanged();
                }
            });
            break;

        case UpdateService.STATUS_ERROR_GLOBAL:
            // TODO: Well, if we can't get the index, we probably can't swapp apps.
            // Tell the user something helpful?
            break;

        case UpdateService.STATUS_COMPLETE_AND_SAME:
            schedulePollForUpdates();
            break;
    }
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
@Test
public void lastUpdated() {
    assertNull(RepoProvider.Helper.lastUpdate(context));

    Repo gpRepo = RepoProvider.Helper.findByAddress(context, "https://guardianproject.info/fdroid/repo");

    // Set date to 2017-04-05 11:56:38
    setLastUpdate(gpRepo, new Date(1491357408643L));

    // GP is not yet enabled, so it is not counted.
    assertNull(RepoProvider.Helper.lastUpdate(context));

    // Set date to 2017-04-04 11:56:38
    Repo fdroidRepo = RepoProvider.Helper.findByAddress(context, "https://f-droid.org/repo");
    setLastUpdate(fdroidRepo, new Date(1491357408643L - (1000 * 60 * 60 * 24)));
    assertEquals("2017-04-04", Utils.formatDate(RepoProvider.Helper.lastUpdate(context), null));

    setEnabled(gpRepo, true);
    assertEquals("2017-04-05", Utils.formatDate(RepoProvider.Helper.lastUpdate(context), null));
}
 

import org.fdroid.fdroid.Utils; //导入依赖的package包/类
private void addAppPrefsTable(SQLiteDatabase db, int oldVersion) {
    if (oldVersion >= 60) {
        return;
    }

    Utils.debugLog(TAG, "Creating app preferences table");
    db.execSQL(CREATE_TABLE_APP_PREFS);

    Utils.debugLog(TAG, "Migrating app preferences to separate table");
    db.execSQL(
            "INSERT INTO " + AppPrefsTable.NAME + " ("
            + AppPrefsTable.Cols.PACKAGE_NAME + ", "
            + AppPrefsTable.Cols.IGNORE_THIS_UPDATE + ", "
            + AppPrefsTable.Cols.IGNORE_ALL_UPDATES
            + ") SELECT "
            + "id, "
            + "ignoreThisUpdate, "
            + "ignoreAllUpdates "
            + "FROM " + AppMetadataTable.NAME + " "
            + "WHERE ignoreThisUpdate > 0 OR ignoreAllUpdates > 0"
    );

    resetTransient(db);
}