Examples with ViewModelProvider androidx.lifecycle.ViewModelProvider used on opensource projects

Example 21 with ViewModelProvider

use of androidx.lifecycle.ViewModelProvider in project bitcoin-wallet by bitcoin-wallet.

the class WalletActivity method onCreate.

@Override
protected void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.application = getWalletApplication();
    this.config = application.getConfiguration();
    walletActivityViewModel = new ViewModelProvider(this).get(AbstractWalletActivityViewModel.class);
    viewModel = new ViewModelProvider(this).get(WalletActivityViewModel.class);
    setContentView(R.layout.wallet_content);
    contentView = findViewById(android.R.id.content);
    exchangeRatesFragment = findViewById(R.id.wallet_main_twopanes_exchange_rates);
    levitateView = contentView.findViewWithTag("levitate");
    // Make view tagged with 'levitate' scroll away and quickly return.
    if (levitateView != null) {
        final CoordinatorLayout.LayoutParams layoutParams = new CoordinatorLayout.LayoutParams(levitateView.getLayoutParams().width, levitateView.getLayoutParams().height);
        layoutParams.setBehavior(new QuickReturnBehavior());
        levitateView.setLayoutParams(layoutParams);
        levitateView.addOnLayoutChangeListener((v, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom) -> {
            final int height = bottom - top;
            final View targetList = findViewById(R.id.wallet_transactions_list);
            targetList.setPadding(targetList.getPaddingLeft(), height, targetList.getPaddingRight(), targetList.getPaddingBottom());
            final View targetEmpty = findViewById(R.id.wallet_transactions_empty);
            targetEmpty.setPadding(targetEmpty.getPaddingLeft(), height, targetEmpty.getPaddingRight(), targetEmpty.getPaddingBottom());
        });
    }
    OnFirstPreDraw.listen(contentView, viewModel);
    enterAnimation = buildEnterAnimation(contentView);
    viewModel.walletEncrypted.observe(this, isEncrypted -> invalidateOptionsMenu());
    viewModel.walletLegacyFallback.observe(this, isLegacyFallback -> invalidateOptionsMenu());
    viewModel.showHelpDialog.observe(this, new Event.Observer<Integer>() {

        @Override
        protected void onEvent(final Integer messageResId) {
            HelpDialogFragment.page(getSupportFragmentManager(), messageResId);
        }
    });
    viewModel.showBackupWalletDialog.observe(this, new Event.Observer<Void>() {

        @Override
        protected void onEvent(final Void v) {
            BackupWalletActivity.start(WalletActivity.this);
        }
    });
    viewModel.showRestoreWalletDialog.observe(this, new Event.Observer<Void>() {

        @Override
        protected void onEvent(final Void v) {
            RestoreWalletDialogFragment.showPick(getSupportFragmentManager());
        }
    });
    viewModel.showEncryptKeysDialog.observe(this, new Event.Observer<Void>() {

        @Override
        protected void onEvent(final Void v) {
            EncryptKeysDialogFragment.show(getSupportFragmentManager());
        }
    });
    viewModel.showReportIssueDialog.observe(this, new Event.Observer<Void>() {

        @Override
        protected void onEvent(final Void v) {
            ReportIssueDialogFragment.show(getSupportFragmentManager(), R.string.report_issue_dialog_title_issue, R.string.report_issue_dialog_message_issue, Constants.REPORT_SUBJECT_ISSUE, null);
        }
    });
    viewModel.showReportCrashDialog.observe(this, new Event.Observer<Void>() {

        @Override
        protected void onEvent(final Void v) {
            ReportIssueDialogFragment.show(getSupportFragmentManager(), R.string.report_issue_dialog_title_crash, R.string.report_issue_dialog_message_crash, Constants.REPORT_SUBJECT_CRASH, null);
        }
    });
    viewModel.enterAnimation.observe(this, state -> {
        if (state == WalletActivityViewModel.EnterAnimationState.WAITING) {
            // API level 26: enterAnimation.setCurrentPlayTime(0);
            for (final Animator animation : enterAnimation.getChildAnimations()) ((ValueAnimator) animation).setCurrentPlayTime(0);
        } else if (state == WalletActivityViewModel.EnterAnimationState.ANIMATING) {
            reportFullyDrawn();
            enterAnimation.start();
            enterAnimation.addListener(new AnimatorListenerAdapter() {

                @Override
                public void onAnimationEnd(final Animator animation) {
                    viewModel.animationFinished();
                }
            });
        } else if (state == WalletActivityViewModel.EnterAnimationState.FINISHED) {
            getWindow().getDecorView().setBackground(null);
        }
    });
    if (savedInstanceState == null)
        viewModel.animateWhenLoadingFinished();
    else
        viewModel.animationFinished();
    if (savedInstanceState == null && CrashReporter.hasSavedCrashTrace())
        viewModel.showReportCrashDialog.setValue(Event.simple());
    config.touchLastUsed();
    handleIntent(getIntent());
    final FragmentManager fragmentManager = getSupportFragmentManager();
    MaybeMaintenanceFragment.add(fragmentManager);
    AlertDialogsFragment.add(fragmentManager);
}

Example 22 with ViewModelProvider

use of androidx.lifecycle.ViewModelProvider in project bitcoin-wallet by bitcoin-wallet.

the class SendCoinsFragment method onCreate.

@Override
public void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.fragmentManager = getChildFragmentManager();
    setHasOptionsMenu(true);
    walletActivityViewModel = new ViewModelProvider(activity).get(AbstractWalletActivityViewModel.class);
    walletActivityViewModel.wallet.observe(this, wallet -> updateView());
    viewModel = new ViewModelProvider(this).get(SendCoinsViewModel.class);
    viewModel.addressBook.observe(this, addressBook -> updateView());
    if (config.isEnableExchangeRates()) {
        viewModel.exchangeRate.observe(this, exchangeRate -> {
            final SendCoinsViewModel.State state = viewModel.state;
            if (state == null || state.compareTo(SendCoinsViewModel.State.INPUT) <= 0)
                amountCalculatorLink.setExchangeRate(exchangeRate != null ? exchangeRate.exchangeRate() : null);
        });
    }
    viewModel.dynamicFees.observe(this, dynamicFees -> {
        updateView();
        handler.post(dryrunRunnable);
    });
    application.blockchainState.observe(this, blockchainState -> updateView());
    viewModel.balance.observe(this, coin -> activity.invalidateOptionsMenu());
    viewModel.progress.observe(this, new ProgressDialogFragment.Observer(fragmentManager));
    viewModel.sentTransaction.observe(this, transaction -> {
        if (viewModel.state == SendCoinsViewModel.State.SENDING) {
            final TransactionConfidence confidence = transaction.getConfidence();
            final ConfidenceType confidenceType = confidence.getConfidenceType();
            final int numBroadcastPeers = confidence.numBroadcastPeers();
            if (confidenceType == ConfidenceType.DEAD)
                setState(SendCoinsViewModel.State.FAILED);
            else if (numBroadcastPeers > 1 || confidenceType == ConfidenceType.BUILDING)
                setState(SendCoinsViewModel.State.SENT);
        }
        updateView();
    });
    bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    backgroundThread = new HandlerThread("backgroundThread", Process.THREAD_PRIORITY_BACKGROUND);
    backgroundThread.start();
    backgroundHandler = new Handler(backgroundThread.getLooper());
    if (savedInstanceState == null) {
        final Intent intent = activity.getIntent();
        final String action = intent.getAction();
        final Uri intentUri = intent.getData();
        final String scheme = intentUri != null ? intentUri.getScheme() : null;
        final String mimeType = intent.getType();
        if ((Intent.ACTION_VIEW.equals(action) || NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) && intentUri != null && "bitcoin".equals(scheme)) {
            initStateFromBitcoinUri(intentUri);
        } else if ((NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) && PaymentProtocol.MIMETYPE_PAYMENTREQUEST.equals(mimeType)) {
            final NdefMessage ndefMessage = (NdefMessage) intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES)[0];
            final byte[] ndefMessagePayload = Nfc.extractMimePayload(PaymentProtocol.MIMETYPE_PAYMENTREQUEST, ndefMessage);
            initStateFromPaymentRequest(mimeType, ndefMessagePayload);
        } else if ((Intent.ACTION_VIEW.equals(action)) && PaymentProtocol.MIMETYPE_PAYMENTREQUEST.equals(mimeType)) {
            final byte[] paymentRequest = BitcoinIntegration.paymentRequestFromIntent(intent);
            if (intentUri != null)
                initStateFromIntentUri(mimeType, intentUri);
            else if (paymentRequest != null)
                initStateFromPaymentRequest(mimeType, paymentRequest);
            else
                throw new IllegalArgumentException();
        } else if (intent.hasExtra(SendCoinsActivity.INTENT_EXTRA_PAYMENT_INTENT)) {
            initStateFromIntentExtras(intent.getExtras());
        } else {
            updateStateFrom(PaymentIntent.blank());
        }
    }
}

Example 23 with ViewModelProvider

use of androidx.lifecycle.ViewModelProvider in project bitcoin-wallet by bitcoin-wallet.

the class SweepWalletFragment method onCreate.

@Override
public void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.fragmentManager = getChildFragmentManager();
    setHasOptionsMenu(true);
    if (!Constants.ENABLE_SWEEP_WALLET)
        throw new IllegalStateException("ENABLE_SWEEP_WALLET is disabled");
    walletActivityViewModel = new ViewModelProvider(activity).get(AbstractWalletActivityViewModel.class);
    walletActivityViewModel.wallet.observe(this, wallet -> updateView());
    viewModel = new ViewModelProvider(this).get(SweepWalletViewModel.class);
    viewModel.getDynamicFees().observe(this, dynamicFees -> updateView());
    viewModel.progress.observe(this, new ProgressDialogFragment.Observer(fragmentManager));
    viewModel.privateKeyToSweep.observe(this, privateKeyToSweep -> updateView());
    viewModel.walletToSweep.observe(this, walletToSweep -> {
        if (walletToSweep != null) {
            balanceView.setVisibility(View.VISIBLE);
            final MonetaryFormat btcFormat = config.getFormat();
            final MonetarySpannable balanceSpannable = new MonetarySpannable(btcFormat, walletToSweep.getBalance(BalanceType.ESTIMATED));
            balanceSpannable.applyMarkup(null, null);
            final SpannableStringBuilder balance = new SpannableStringBuilder(balanceSpannable);
            balance.insert(0, ": ");
            balance.insert(0, getString(R.string.sweep_wallet_fragment_balance));
            balanceView.setText(balance);
        } else {
            balanceView.setVisibility(View.GONE);
        }
        updateView();
    });
    viewModel.sentTransaction.observe(this, transaction -> {
        if (viewModel.state == SweepWalletViewModel.State.SENDING) {
            final TransactionConfidence confidence = transaction.getConfidence();
            final ConfidenceType confidenceType = confidence.getConfidenceType();
            final int numBroadcastPeers = confidence.numBroadcastPeers();
            if (confidenceType == ConfidenceType.DEAD)
                setState(SweepWalletViewModel.State.FAILED);
            else if (numBroadcastPeers > 1 || confidenceType == ConfidenceType.BUILDING)
                setState(SweepWalletViewModel.State.SENT);
        }
        updateView();
    });
    viewModel.showDialog.observe(this, new DialogEvent.Observer(activity));
    viewModel.showDialogWithRetryRequestBalance.observe(this, new DialogEvent.Observer(activity) {

        @Override
        protected void onBuildButtons(final DialogBuilder dialog) {
            dialog.setPositiveButton(R.string.button_retry, (d, which) -> requestWalletBalance());
            dialog.setNegativeButton(R.string.button_dismiss, null);
        }
    });
    backgroundThread = new HandlerThread("backgroundThread", Process.THREAD_PRIORITY_BACKGROUND);
    backgroundThread.start();
    backgroundHandler = new Handler(backgroundThread.getLooper());
    if (savedInstanceState == null) {
        final Intent intent = activity.getIntent();
        if (intent.hasExtra(SweepWalletActivity.INTENT_EXTRA_KEY)) {
            final PrefixedChecksummedBytes privateKeyToSweep = (PrefixedChecksummedBytes) intent.getSerializableExtra(SweepWalletActivity.INTENT_EXTRA_KEY);
            viewModel.privateKeyToSweep.setValue(privateKeyToSweep);
            // delay until fragment is resumed
            handler.post(maybeDecodeKeyRunnable);
        }
    }
}

Example 24 with ViewModelProvider

use of androidx.lifecycle.ViewModelProvider in project bitcoin-wallet by bitcoin-wallet.

the class ScanActivity method onCreate.

@Override
public void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
    viewModel = new ViewModelProvider(this).get(ScanViewModel.class);
    viewModel.showPermissionWarnDialog.observe(this, new Event.Observer<Void>() {

        @Override
        protected void onEvent(final Void v) {
            WarnDialogFragment.show(getSupportFragmentManager(), R.string.scan_camera_permission_dialog_title, getString(R.string.scan_camera_permission_dialog_message));
        }
    });
    viewModel.showProblemWarnDialog.observe(this, new Event.Observer<Void>() {

        @Override
        protected void onEvent(final Void v) {
            WarnDialogFragment.show(getSupportFragmentManager(), R.string.scan_camera_problem_dialog_title, getString(R.string.scan_camera_problem_dialog_message));
        }
    });
    viewModel.maybeStartSceneTransition.observe(this, new Event.Observer<Void>() {

        @Override
        protected void onEvent(final Void v) {
            if (sceneTransition != null) {
                contentView.setAlpha(1);
                sceneTransition.addListener(new AnimatorListenerAdapter() {

                    @Override
                    public void onAnimationEnd(Animator animation) {
                        getWindow().setBackgroundDrawable(new ColorDrawable(getColor(android.R.color.black)));
                    }
                });
                sceneTransition.start();
                sceneTransition = null;
            }
        }
    });
    // Stick to the orientation the activity was started with. We cannot declare this in the
    // AndroidManifest.xml, because it's not allowed in combination with the windowIsTranslucent=true
    // theme attribute.
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
    // Draw under navigation and status bars.
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
    setContentView(R.layout.scan_activity);
    contentView = findViewById(android.R.id.content);
    scannerView = findViewById(R.id.scan_activity_mask);
    previewView = findViewById(R.id.scan_activity_preview);
    previewView.setSurfaceTextureListener(this);
    cameraThread = new HandlerThread("cameraThread", Process.THREAD_PRIORITY_BACKGROUND);
    cameraThread.start();
    cameraHandler = new Handler(cameraThread.getLooper());
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
        log.info("missing {}, requesting", Manifest.permission.CAMERA);
        ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.CAMERA }, 0);
    }
    if (savedInstanceState == null) {
        final Intent intent = getIntent();
        final int x = intent.getIntExtra(INTENT_EXTRA_SCENE_TRANSITION_X, -1);
        final int y = intent.getIntExtra(INTENT_EXTRA_SCENE_TRANSITION_Y, -1);
        if (x != -1 || y != -1) {
            // Using alpha rather than visibility because 'invisible' will cause the surface view to never
            // start up, so the animation will never start.
            contentView.setAlpha(0);
            getWindow().setBackgroundDrawable(new ColorDrawable(getColor(android.R.color.transparent)));
            OnFirstPreDraw.listen(contentView, () -> {
                float finalRadius = (float) (Math.max(contentView.getWidth(), contentView.getHeight()));
                final int duration = getResources().getInteger(android.R.integer.config_mediumAnimTime);
                sceneTransition = ViewAnimationUtils.createCircularReveal(contentView, x, y, 0, finalRadius);
                sceneTransition.setDuration(duration);
                sceneTransition.setInterpolator(new AccelerateInterpolator());
                // (subclasses of) ValueAnimator.
                return false;
            });
        }
    }
}

Example 25 with ViewModelProvider

use of androidx.lifecycle.ViewModelProvider in project bitcoin-wallet by bitcoin-wallet.

the class PeerListFragment method onCreate.

@Override
public void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    activityViewModel = new ViewModelProvider(activity).get(NetworkMonitorViewModel.class);
    activityViewModel.selectedItem.observe(this, item -> {
        if (item instanceof HostAndPort) {
            final HostAndPort peerHostAndPort = (HostAndPort) item;
            adapter.setSelectedPeer(peerHostAndPort);
            final int position = adapter.positionOf(peerHostAndPort);
            if (position != RecyclerView.NO_POSITION)
                recyclerView.smoothScrollToPosition(position);
        } else {
            adapter.setSelectedPeer(null);
        }
    });
    viewModel = new ViewModelProvider(this).get(PeerListViewModel.class);
    viewModel.peers.observe(this, peers -> {
        viewGroup.setDisplayedChild((peers == null || peers.isEmpty()) ? 1 : 2);
        maybeSubmitList();
        if (peers != null)
            for (final Peer peer : peers) viewModel.getHostnames().reverseLookup(peer.getAddress().getAddr());
    });
    viewModel.getHostnames().observe(this, hostnames -> maybeSubmitList());
    adapter = new PeerListAdapter(activity, this);
}