Example usage for android.app ActivityManager getMemoryClass

Introduction

In this page you can find the example usage for android.app ActivityManager getMemoryClass.

Prototype

public int getMemoryClass() 

Source Link

Document

Return the approximate per-application memory class of the current device.

Usage

From source file:com.android.ex.photo.PhotoViewActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    final ActivityManager mgr = (ActivityManager) getApplicationContext()
            .getSystemService(Activity.ACTIVITY_SERVICE);
    sMemoryClass = mgr.getMemoryClass();

    Intent mIntent = getIntent();// w ww. java2s. com

    int currentItem = -1;
    if (savedInstanceState != null) {
        currentItem = savedInstanceState.getInt(STATE_ITEM_KEY, -1);
        mFullScreen = savedInstanceState.getBoolean(STATE_FULLSCREEN_KEY, false);
    }

    // uri of the photos to view; optional
    if (mIntent.hasExtra(Intents.EXTRA_PHOTOS_URI)) {
        mPhotosUri = mIntent.getStringExtra(Intents.EXTRA_PHOTOS_URI);
    }

    // projection for the query; optional
    // I.f not set, the default projection is used.
    // This projection must include the columns from the default projection.
    if (mIntent.hasExtra(Intents.EXTRA_PROJECTION)) {
        mProjection = mIntent.getStringArrayExtra(Intents.EXTRA_PROJECTION);
    } else {
        mProjection = null;
    }

    // Set the current item from the intent if wasn't in the saved instance
    if (mIntent.hasExtra(Intents.EXTRA_PHOTO_INDEX) && currentItem < 0) {
        currentItem = mIntent.getIntExtra(Intents.EXTRA_PHOTO_INDEX, -1);
    }
    mPhotoIndex = currentItem;

    setContentView(R.layout.photo_activity_view);

    // Create the adapter and add the view pager
    mAdapter = new PhotoPagerAdapter(this, getFragmentManager(), null);

    mViewPager = (PhotoViewPager) findViewById(R.id.photo_view_pager);
    mViewPager.setAdapter(mAdapter);
    mViewPager.setOnPageChangeListener(this);
    mViewPager.setOnInterceptTouchListener(this);

    // Kick off the loader
    getLoaderManager().initLoader(LOADER_PHOTO_LIST, null, this);

    final ActionBar actionBar = getActionBar();
    actionBar.setDisplayHomeAsUpEnabled(true);
    mActionBarHideDelayTime = getResources().getInteger(R.integer.action_bar_delay_time_in_millis);
    actionBar.addOnMenuVisibilityListener(this);
    actionBar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);
}

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From source file:org.chromium.chrome.browser.enhancedbookmarks.EnhancedBookmarkManager.java

/**
 * Creates an instance of {@link EnhancedBookmarkManager}. It also initializes resources,
 * bookmark models and jni bridges.//www.j  a va 2s.co  m
 * @param activity The activity context to use.
 */
public EnhancedBookmarkManager(Activity activity) {
    mActivity = activity;
    mEnhancedBookmarksModel = new EnhancedBookmarksModel();
    mMainView = (ViewGroup) mActivity.getLayoutInflater().inflate(R.layout.eb_main, null);
    mDrawer = (DrawerLayout) mMainView.findViewById(R.id.eb_drawer_layout);
    mDrawerListView = (EnhancedBookmarkDrawerListView) mMainView.findViewById(R.id.eb_drawer_list);
    mContentView = (EnhancedBookmarkContentView) mMainView.findViewById(R.id.eb_content_view);
    mViewSwitcher = (ViewSwitcher) mMainView.findViewById(R.id.eb_view_switcher);
    mUndoController = new EnhancedBookmarkUndoController(activity, mEnhancedBookmarksModel,
            ((SnackbarManageable) activity).getSnackbarManager());
    mSearchView = (EnhancedBookmarkSearchView) getView().findViewById(R.id.eb_search_view);
    mEnhancedBookmarksModel.addObserver(mBookmarkModelObserver);
    initializeIfBookmarkModelLoaded();

    // Load partner bookmarks explicitly. We load partner bookmarks in the deferred startup
    // code, but that might be executed much later. Especially on L, showing loading
    // progress bar blocks that so it won't be loaded. http://crbug.com/429383
    PartnerBookmarksShim.kickOffReading(activity);

    mLargeIconBridge = new LargeIconBridge(Profile.getLastUsedProfile().getOriginalProfile());
    ActivityManager activityManager = ((ActivityManager) ApplicationStatus.getApplicationContext()
            .getSystemService(Context.ACTIVITY_SERVICE));
    int maxSize = Math.min(activityManager.getMemoryClass() / 4 * 1024 * 1024, FAVICON_MAX_CACHE_SIZE_BYTES);
    mLargeIconBridge.createCache(maxSize);
}

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From source file:org.totschnig.myexpenses.MyApplication.java

public int getMemoryClass() {
    ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
    return am.getMemoryClass();
}

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From source file:com.andrew.apollo.cache.ImageCache.java

/**
 * Sets up the Lru cache/*www.ja  v  a2s  .  c o  m*/
 * 
 * @param context The {@link Context} to use
 */
@SuppressLint("NewApi")
public void initLruCache(final Context context) {
    final ActivityManager activityManager = (ActivityManager) context
            .getSystemService(Context.ACTIVITY_SERVICE);
    final int lruCacheSize = Math.round(MEM_CACHE_DIVIDER * activityManager.getMemoryClass() * 1024 * 1024);
    mLruCache = new MemoryCache(lruCacheSize);

    // Release some memory as needed
    if (ApolloUtils.hasICS()) {
        context.registerComponentCallbacks(new ComponentCallbacks2() {

            /**
             * {@inheritDoc}
             */
            @Override
            public void onTrimMemory(final int level) {
                if (level >= TRIM_MEMORY_MODERATE) {
                    evictAll();
                } else if (level >= TRIM_MEMORY_BACKGROUND) {
                    mLruCache.trimToSize(mLruCache.size() / 2);
                }
            }

            /**
             * {@inheritDoc}
             */
            @Override
            public void onLowMemory() {
                // Nothing to do
            }

            /**
             * {@inheritDoc}
             */
            @Override
            public void onConfigurationChanged(final Configuration newConfig) {
                // Nothing to do
            }
        });
    }
}

---

From source file:com.boko.vimusic.cache.ImageCache.java

/**
 * Sets up the Lru cache// w w w.  j  a v  a2  s  .c o m
 * 
 * @param context
 *            The {@link Context} to use
 */
@SuppressLint("NewApi")
public void initLruCache(final Context context) {
    final ActivityManager activityManager = (ActivityManager) context
            .getSystemService(Context.ACTIVITY_SERVICE);
    final int lruCacheSize = Math.round(MEM_CACHE_DIVIDER * activityManager.getMemoryClass() * 1024 * 1024);
    mLruCache = new MemoryCache(lruCacheSize);

    // Release some memory as needed
    context.registerComponentCallbacks(new ComponentCallbacks2() {

        /**
         * {@inheritDoc}
         */
        @Override
        public void onTrimMemory(final int level) {
            if (level >= TRIM_MEMORY_MODERATE) {
                evictAll();
            } else if (level >= TRIM_MEMORY_BACKGROUND) {
                mLruCache.trimToSize(mLruCache.size() / 2);
            }
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void onLowMemory() {
            // Nothing to do
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void onConfigurationChanged(final Configuration newConfig) {
            // Nothing to do
        }
    });
}

---

From source file:com.almalence.opencam.Fragment.java

@TargetApi(13)
private void showCameraParameters() {
    AlertDialog.Builder alertDialog = new AlertDialog.Builder(getActivity());
    alertDialog.setTitle(R.string.Pref_CameraParameters_Title);
    final StringBuilder about_string = new StringBuilder();
    String version = "UNKNOWN_VERSION";
    int version_code = -1;
    try {//from  w w w  .  j a  v a  2 s  .  c om
        PackageInfo pInfo = getActivity().getPackageManager().getPackageInfo(getActivity().getPackageName(), 0);
        version = pInfo.versionName;
        version_code = pInfo.versionCode;
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    }
    about_string.append("\nApplication name: ");
    about_string.append(MainScreen.getInstance().getResources().getString(R.string.Pref_About));
    about_string.append("\nAndroid API version: ");
    about_string.append(Build.VERSION.SDK_INT);
    about_string.append("\nDevice manufacturer: ");
    about_string.append(Build.MANUFACTURER);
    about_string.append("\nDevice model: ");
    about_string.append(Build.MODEL);
    about_string.append("\nDevice code-name: ");
    about_string.append(Build.HARDWARE);
    about_string.append("\nDevice variant: ");
    about_string.append(Build.DEVICE);
    {
        ActivityManager activityManager = (ActivityManager) getActivity()
                .getSystemService(Activity.ACTIVITY_SERVICE);
        about_string.append("\nStandard max heap (MB): ");
        about_string.append(activityManager.getMemoryClass());
        about_string.append("\nLarge max heap (MB): ");
        about_string.append(activityManager.getLargeMemoryClass());
    }
    {
        Point display_size = new Point();
        Display display = getActivity().getWindowManager().getDefaultDisplay();
        display.getSize(display_size);
        about_string.append("\nDisplay size: ");
        about_string.append(display_size.x);
        about_string.append("x");
        about_string.append(display_size.y);
    }

    //show camera 2 support level
    int level = CameraController.getCamera2Level();
    about_string.append("\nCamera2 API: ");
    switch (level) {
    case 0://limited
        about_string.append("limited");
        break;
    case 1://full
        about_string.append("full");
        break;
    case 2://legacy
        about_string.append("legacy");
        break;
    default:
        about_string.append("not supported");
    }

    //      about_string.append("\nSensor orientation, back camera: ");
    //      about_string.append(CameraController.getSensorOrientation(0));
    //      about_string.append("\nSensor orientation, front camera: ");
    //      about_string.append(CameraController.getSensorOrientation(1));

    if (MainScreen.getInstance().preview_sizes != null) {
        about_string.append("\nPreview resolutions: ");
        for (int i = 0; i < MainScreen.getInstance().preview_sizes.size(); i++) {
            if (i > 0) {
                about_string.append(", ");
            }
            about_string.append(MainScreen.getInstance().preview_sizes.get(i).getWidth());
            about_string.append("x");
            about_string.append(MainScreen.getInstance().preview_sizes.get(i).getHeight());
        }
    }

    about_string.append("\nCurrent camera ID: ");
    about_string.append(MainScreen.getInstance().cameraId);

    if (MainScreen.getInstance().picture_sizes != null) {
        about_string.append("\nPhoto resolutions: ");
        for (int i = 0; i < MainScreen.getInstance().picture_sizes.size(); i++) {
            if (i > 0) {
                about_string.append(", ");
            }
            about_string.append(MainScreen.getInstance().picture_sizes.get(i).getWidth());
            about_string.append("x");
            about_string.append(MainScreen.getInstance().picture_sizes.get(i).getHeight());
        }
    }

    if (MainScreen.getInstance().video_sizes != null) {
        about_string.append("\nVideo resolutions: ");
        for (int i = 0; i < MainScreen.getInstance().video_sizes.size(); i++) {
            if (i > 0) {
                about_string.append(", ");
            }
            about_string.append(MainScreen.getInstance().video_sizes.get(i).getWidth());
            about_string.append("x");
            about_string.append(MainScreen.getInstance().video_sizes.get(i).getHeight());
        }
    }

    about_string.append("\nVideo stabilization: ");
    about_string.append(MainScreen.getInstance().supports_video_stabilization ? "true" : "false");

    about_string.append("\nFlash modes: ");
    if (MainScreen.getInstance().flash_values != null && MainScreen.getInstance().flash_values.size() > 0) {
        for (int i = 0; i < MainScreen.getInstance().flash_values.size(); i++) {
            if (i > 0) {
                about_string.append(", ");
            }
            about_string.append(MainScreen.getInstance().flash_values.get(i));
        }
    } else {
        about_string.append("None");
    }

    about_string.append("\nFocus modes: ");
    if (MainScreen.getInstance().focus_values != null && MainScreen.getInstance().focus_values.size() > 0) {
        for (int i = 0; i < MainScreen.getInstance().focus_values.size(); i++) {
            if (i > 0) {
                about_string.append(", ");
            }
            about_string.append(MainScreen.getInstance().focus_values.get(i));
        }
    } else {
        about_string.append("None");
    }

    about_string.append("\nScene modes: ");
    if (MainScreen.getInstance().scene_modes_values != null
            && MainScreen.getInstance().scene_modes_values.size() > 0) {
        for (int i = 0; i < MainScreen.getInstance().scene_modes_values.size(); i++) {
            if (i > 0) {
                about_string.append(", ");
            }
            about_string.append(MainScreen.getInstance().scene_modes_values.get(i));
        }
    } else {
        about_string.append("None");
    }

    about_string.append("\nWhite balances: ");
    if (MainScreen.getInstance().white_balances_values != null
            && MainScreen.getInstance().white_balances_values.size() > 0) {
        for (int i = 0; i < MainScreen.getInstance().white_balances_values.size(); i++) {
            if (i > 0) {
                about_string.append(", ");
            }
            about_string.append(MainScreen.getInstance().white_balances_values.get(i));
        }
    } else {
        about_string.append("None");
    }

    about_string.append("\nISOs: ");
    if (MainScreen.getInstance().isos != null && MainScreen.getInstance().isos.size() > 0) {
        for (int i = 0; i < MainScreen.getInstance().isos.size(); i++) {
            if (i > 0) {
                about_string.append(", ");
            }
            about_string.append(MainScreen.getInstance().isos.get(i));
        }
    } else {
        about_string.append("None");
    }

    String save_location = SavingService.getSaveToPath();
    about_string.append("\nSave Location: " + save_location);

    if (MainScreen.getInstance().flattenParamteters != null
            && !MainScreen.getInstance().flattenParamteters.equals("")) {
        about_string.append("\nFULL INFO:\n");
        about_string.append(MainScreen.getInstance().flattenParamteters);
    }

    alertDialog.setMessage(about_string);
    alertDialog.setPositiveButton(R.string.Pref_CameraParameters_Ok, null);
    alertDialog.setNegativeButton(R.string.Pref_CameraParameters_CopyToClipboard,
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    ClipboardManager clipboard = (ClipboardManager) getActivity()
                            .getSystemService(Activity.CLIPBOARD_SERVICE);
                    ClipData clip = ClipData.newPlainText("OpenCamera About", about_string);
                    clipboard.setPrimaryClip(clip);
                }
            });
    alertDialog.show();
}

---

From source file:com.utils.image.cache.ImageCache.java

/**
 * Sets up the Lru cache/*from  w w w .ja  v a  2s. co m*/
 * 
 * @param context The {@link Context} to use
 */
@SuppressLint("NewApi")
public void initLruCache(final Context context) {
    final ActivityManager activityManager = (ActivityManager) context
            .getSystemService(Context.ACTIVITY_SERVICE);
    final int lruCacheSize = Math.round(MEM_CACHE_DIVIDER * activityManager.getMemoryClass() * 1024 * 1024);

    KeelLog.d("lruCacheSize:" + lruCacheSize);
    mLruCache = new MemoryCache(lruCacheSize / 2);

    // Release some memory as needed
    if (ApolloUtils.hasICS()) {
        context.registerComponentCallbacks(new ComponentCallbacks2() {

            /**
             * {@inheritDoc}
             */
            @Override
            public void onTrimMemory(final int level) {
                if (level >= TRIM_MEMORY_MODERATE) {
                    evictAll();
                } else if (level >= TRIM_MEMORY_BACKGROUND) {
                    mLruCache.trimToSize(mLruCache.size() / 2);
                }
            }

            /**
             * {@inheritDoc}
             */
            @Override
            public void onLowMemory() {
                // Nothing to do
            }

            /**
             * {@inheritDoc}
             */
            @Override
            public void onConfigurationChanged(final Configuration newConfig) {
                // Nothing to do
            }
        });
    }
}

---

From source file:info.guardianproject.pixelknot.PixelKnotActivity.java

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    dump = new File(DUMP);
    if (!dump.exists())
        dump.mkdir();//from w w w .ja  va 2s  .c o  m

    d = R.drawable.progress_off_selected;
    d_ = R.drawable.progress_on;

    setContentView(R.layout.pixel_knot_activity);

    ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
    scale = Image.getScale(am.getMemoryClass());

    if (Build.VERSION.SDK_INT <= 10)
        getSupportActionBar().hide();
    else
        ((RelativeLayout) findViewById(R.id.pk_header)).setVisibility(View.GONE);

    imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);

    options_holder = (LinearLayout) findViewById(R.id.options_holder);

    action_display = (LinearLayout) findViewById(R.id.action_display);
    action_display_ = (LinearLayout) findViewById(R.id.action_display_);

    progress_holder = (LinearLayout) findViewById(R.id.progress_holder);

    List<Fragment> fragments = new Vector<Fragment>();

    if (getIntent().getData() == null) {
        Fragment cover_image_fragment = Fragment.instantiate(this, CoverImageFragment.class.getName());
        Fragment set_message_fragment = Fragment.instantiate(this, SetMessageFragment.class.getName());
        Fragment share_fragment = Fragment.instantiate(this, ShareFragment.class.getName());

        fragments.add(0, cover_image_fragment);
        fragments.add(1, set_message_fragment);
        fragments.add(2, share_fragment);
    } else {
        Fragment stego_image_fragment = Fragment.instantiate(this, StegoImageFragment.class.getName());
        Bundle args = new Bundle();
        args.putString(Keys.COVER_IMAGE_NAME, IO.pullPathFromUri(this, getIntent().getData()));
        stego_image_fragment.setArguments(args);

        Fragment decrypt_image_fragment = Fragment.instantiate(this, DecryptImageFragment.class.getName());

        fragments.add(0, stego_image_fragment);
        fragments.add(1, decrypt_image_fragment);
    }

    pk_pager = new PKPager(getSupportFragmentManager(), fragments);
    view_pager = (ViewPager) findViewById(R.id.fragment_holder);
    view_pager.setAdapter(pk_pager);
    view_pager.setOnPageChangeListener(this);

    LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
            LayoutParams.WRAP_CONTENT);
    lp.setMargins(5, 0, 5, 0);

    for (int p = 0; p < fragments.size(); p++) {
        ImageView progress_view = new ImageView(this);
        progress_view.setLayoutParams(lp);
        progress_view.setBackgroundResource(p == 0 ? d_ : d);
        progress_holder.addView(progress_view);
    }

    last_diff = 0;
    activity_root = findViewById(R.id.activity_root);
    activity_root.getViewTreeObserver().addOnGlobalLayoutListener(this);

    last_locale = PreferenceManager.getDefaultSharedPreferences(this).getString(Settings.LANGUAGE, "0");
}

---

From source file:de.schildbach.wallet.util.CrashReporter.java

public static void appendDeviceInfo(final Appendable report, final Context context) throws IOException {
    final Resources res = context.getResources();
    final android.content.res.Configuration config = res.getConfiguration();
    final ActivityManager activityManager = (ActivityManager) context
            .getSystemService(Context.ACTIVITY_SERVICE);
    final DevicePolicyManager devicePolicyManager = (DevicePolicyManager) context
            .getSystemService(Context.DEVICE_POLICY_SERVICE);

    report.append("Device Model: " + Build.MODEL + "\n");
    report.append("Android Version: " + Build.VERSION.RELEASE + "\n");
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
        report.append("Android security patch level: ").append(Build.VERSION.SECURITY_PATCH).append("\n");
    report.append("ABIs: ").append(Joiner.on(", ").skipNulls().join(Strings.emptyToNull(Build.CPU_ABI),
            Strings.emptyToNull(Build.CPU_ABI2))).append("\n");
    report.append("Board: " + Build.BOARD + "\n");
    report.append("Brand: " + Build.BRAND + "\n");
    report.append("Device: " + Build.DEVICE + "\n");
    report.append("Display: " + Build.DISPLAY + "\n");
    report.append("Finger Print: " + Build.FINGERPRINT + "\n");
    report.append("Host: " + Build.HOST + "\n");
    report.append("ID: " + Build.ID + "\n");
    report.append("Product: " + Build.PRODUCT + "\n");
    report.append("Tags: " + Build.TAGS + "\n");
    report.append("Time: " + Build.TIME + "\n");
    report.append("Type: " + Build.TYPE + "\n");
    report.append("User: " + Build.USER + "\n");
    report.append("Configuration: " + config + "\n");
    report.append("Screen Layout: size "
            + (config.screenLayout & android.content.res.Configuration.SCREENLAYOUT_SIZE_MASK) + " long "
            + (config.screenLayout & android.content.res.Configuration.SCREENLAYOUT_LONG_MASK) + "\n");
    report.append("Display Metrics: " + res.getDisplayMetrics() + "\n");
    report.append("Memory Class: " + activityManager.getMemoryClass() + "/"
            + activityManager.getLargeMemoryClass()
            + (ActivityManagerCompat.isLowRamDevice(activityManager) ? " (low RAM device)" : "") + "\n");
    report.append("Storage Encryption Status: " + devicePolicyManager.getStorageEncryptionStatus() + "\n");
    report.append("Bluetooth MAC: " + bluetoothMac() + "\n");
    report.append("Runtime: ").append(System.getProperty("java.vm.name")).append(" ")
            .append(System.getProperty("java.vm.version")).append("\n");
}

---

From source file:com.digipom.manteresting.android.service.cache.CacheService.java

private int tryGetLargeMemoryClass(ActivityManager am) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        try {/*  ww w.  j  av a 2s  .  c om*/
            final Method getLargeMemoryClass = ActivityManager.class.getMethod("getLargeMemoryClass",
                    (Class[]) null);
            final Integer largeMemoryClass = (Integer) getLargeMemoryClass.invoke(am, (Object[]) null);
            return largeMemoryClass;
        } catch (Exception e) {
            if (LoggerConfig.canLog(Log.ERROR)) {
                Log.e(TAG, "Reflection call failed.", e);
            }

            return am.getMemoryClass();
        }
    } else {
        return am.getMemoryClass();
    }
}

---

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