java类android.content.res.Resources的实例源码

/**
 * Get drawable
 *
 * @param context context
 * @param resId   drawable id
 * @return drawable
 */
static public Drawable getDrawable(@NonNull final Context context, int resId)
{
    final Resources resources = context.getResources();
    Drawable drawable;
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP)
    {
        final Resources.Theme theme = context.getTheme();
        drawable = resources.getDrawable(resId, theme);
    }
    else
    {
        drawable = resources.getDrawable(resId);
    }
    return drawable;
}

private void init(Context context, AttributeSet attrs, int defStyleAttr) {
    Resources r = context.getResources();

    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.MDRootLayout, defStyleAttr, 0);
    reducePaddingNoTitleNoButtons = a.getBoolean(R.styleable.MDRootLayout_md_reduce_padding_no_title_no_buttons, true);
    a.recycle();

    noTitlePaddingFull = r.getDimensionPixelSize(R.dimen.md_notitle_vertical_padding);
    buttonPaddingFull = r.getDimensionPixelSize(R.dimen.md_button_frame_vertical_padding);

    buttonHorizontalEdgeMargin = r.getDimensionPixelSize(R.dimen.md_button_padding_frame_side);
    buttonBarHeight = r.getDimensionPixelSize(R.dimen.md_button_height);

    dividerPaint = new Paint();
    dividerWidth = r.getDimensionPixelSize(R.dimen.md_divider_height);
    dividerPaint.setColor(DialogUtils.resolveColor(context, R.attr.md_divider_color));
    setWillNotDraw(false);
}

private void init(Context context, @Nullable AttributeSet attrs, int defStyleAttr, int
    defStyleRes) {
  mAttrsHelper.init(context, attrs, defStyleAttr, defStyleRes);
  setText(mAttrsHelper.mText);
  TextPaint textPaint = getTextPaint();
  textPaint.setColor(mAttrsHelper.mTextColor);
  textPaint.setTextSize(mAttrsHelper.mTextSize);
  final Resources.Theme theme = context.getTheme();
  TypedArray a = theme.obtainStyledAttributes(attrs, R.styleable.FastTextView, defStyleAttr,
      defStyleRes);
  mEnableLayoutCache = a.getBoolean(R.styleable.FastTextView_enableLayoutCache, false);
  a.recycle();
}

private static Shortcut from(Card.Apps c, String ident){
    String[] parts = ident.split("\\|");
    Context ctx = c.getWrapper().getContext();
    if(parts[0].equals("shortcut4") && parts.length >= 5){
        try {
            Resources res = ctx.getPackageManager().getResourcesForApplication(parts[1]);
            int drawableIdent = res.getIdentifier(parts[4], "drawable", parts[1]);
            Drawable icon = res.getDrawable(drawableIdent);
            String uri = decodeText(parts[2]);
            Intent intent = Intent.parseUri(uri, Intent.URI_INTENT_SCHEME);
            return new Shortcut(parts[3], icon, parts[1], intent, drawableIdent);
        } catch (PackageManager.NameNotFoundException | URISyntaxException |
                    Resources.NotFoundException ignored) {
        }
    }
    return null;
}

@TargetApi(14)
private int getNavigationBarHeight(Context context) {
    Resources res = context.getResources();
    int result = 0;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
        if (hasNavBar(context)) {
            String key;
            if (mInPortrait) {
                key = NAV_BAR_HEIGHT_RES_NAME;
            } else {
                key = NAV_BAR_HEIGHT_LANDSCAPE_RES_NAME;
            }
            return getInternalDimensionSize(res, key);
        }
    }
    return result;
}

private void init(Context context) {
    setOrientation(VERTICAL);

    Resources r = context.getResources();
    int pxPadding = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 8, r.getDisplayMetrics());

    setPadding(pxPadding, pxPadding, pxPadding, pxPadding);

    LayoutInflater layoutInflater = LayoutInflater.from(context);
    View view = layoutInflater.inflate(R.layout.menu_dialog, this);
    mStreamEditText = (EditText) view.findViewById(R.id.stream_url);
    mResolutionGroup = (RadioGroup)view.findViewById(R.id.resolution);
    mResolutionGroup.check(R.id.resolution_hight);

    mOrientationGroup = (RadioGroup)view.findViewById(R.id.orientation);
    mOrientationGroup.check(R.id.orientation_landscape);
}

public Drawable getCategoryIcon(final Category category) {
    final Resources resources = context.getResources();

    switch (category) {
        case ACCOMMODATION:
            return resources.getDrawable(R.drawable.ic_hotel_black);
        case FOOD:
            return resources.getDrawable(R.drawable.ic_food_black);
        case TRANSPORT:
            return resources.getDrawable(R.drawable.ic_transport_black);
        case ENTERTAINMENT:
            return
                    resources.getDrawable(R.drawable.ic_entertainment_black);
        case BUSINESS:
            return resources.getDrawable(R.drawable.ic_business_black);
        case OTHER:
        default:
            return resources.getDrawable(R.drawable.ic_other_black);
    }
}

/**
 * 获取压缩后的图片
 *
 * @param res
 * @param resId
 * @param reqWidth  所需图片压缩尺寸最小宽度
 * @param reqHeight 所需图片压缩尺寸最小高度
 * @return
 */
public static Bitmap decodeSampledBitmapFromResource(Resources res, int resId, int reqWidth, int reqHeight) {
    /**
     * 1.获取图片的像素宽高(不加载图片至内存中,所以不会占用资源)
     * 2.计算需要压缩的比例
     * 3.按将图片用计算出的比例压缩,并加载至内存中使用
     */
    // 首先不加载图片,仅获取图片尺寸
    final BitmapFactory.Options options = new BitmapFactory.Options();
    // 当inJustDecodeBounds设为true时,不会加载图片仅获取图片尺寸信息
    options.inJustDecodeBounds = true;
    // 此时仅会将图片信息会保存至options对象内,decode方法不会返回bitmap对象
    BitmapFactory.decodeResource(res, resId, options);

    // 计算压缩比例,如inSampleSize=4时,图片会压缩成原图的1/4
    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

    // 当inJustDecodeBounds设为false时,BitmapFactory.decode...就会返回图片对象了
    options.inJustDecodeBounds = false;
    options.inScaled = false;
    // 利用计算的比例值获取压缩后的图片对象
    return BitmapFactory.decodeResource(res, resId, options);
}

private int getSizeDimension(@Size final int size) {
  final Resources res = getResources();
  switch (size) {
    case SIZE_AUTO:
      // If we're set to auto, grab the size from resources and refresh
              final int width = res.getConfiguration().screenWidthDp;
              final int height = res.getConfiguration().screenHeightDp;
      return Math.max(width, height) < AUTO_MINI_LARGEST_SCREEN_WIDTH
          ? getSizeDimension(SIZE_MINI)
          : getSizeDimension(SIZE_NORMAL);
    case SIZE_MINI:
      return res.getDimensionPixelSize(R.dimen.design_fab_size_mini);
    case SIZE_NORMAL:
    default:
      return res.getDimensionPixelSize(R.dimen.design_fab_size_normal);
  }
}

public void onBind(@NonNull CheckInfo checkInfo, int position) {
    if (mCheckInfo != null && mCheckInfo.equals(checkInfo)) {
        return;
    }
    mCheckInfo = checkInfo;
    Resources res = itemView.getResources();
    String desc = res.getString(ChecksHelper.getCheckStringId(mCheckInfo.getTypeCheck()));
    title.setText(desc);
    if (mCheckInfo.getState() == null) {
        icon.setImageBitmap(getNonCheck(itemView.getContext()));
    } else if (mCheckInfo.getState() == Boolean.TRUE) {
        icon.setImageBitmap(getFound(itemView.getContext()));
    } else {
        icon.setImageBitmap(getOk(itemView.getContext()));
    }

}

private int getNavigationBarHeight(Context context) {
    Resources res = context.getResources();
    int result = 0;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
        if (hasNavBar(context)) {
            String key;
            if (mInPortrait) {
                key = NAV_BAR_HEIGHT_RES_NAME;
            } else {
                key = NAV_BAR_HEIGHT_LANDSCAPE_RES_NAME;
            }
            return ResourcesUtils.getDimensionSize(res, key, "android");
        }
    }
    return result;
}

public void setRefreshTime(long lastRefreshTime) {
    // 获取当前时间
    Calendar mCalendar = Calendar.getInstance();
    long refreshTime = mCalendar.getTimeInMillis();
    long howLong = refreshTime - lastRefreshTime;
    int minutes = (int) (howLong / 1000 / 60);
    String refreshTimeText = null;
    Resources resources = getContext().getResources();
    if (minutes < 1) {
        refreshTimeText = resources
                .getString(R.string.xrefreshview_refresh_justnow);
    } else if (minutes < 60) {
        refreshTimeText = resources
                .getString(R.string.xrefreshview_refresh_minutes_ago);
        refreshTimeText = Utils.format(refreshTimeText, minutes);
    } else if (minutes < 60 * 24) {
        refreshTimeText = resources
                .getString(R.string.xrefreshview_refresh_hours_ago);
        refreshTimeText = Utils.format(refreshTimeText, minutes / 60);
    } else {
        refreshTimeText = resources
                .getString(R.string.xrefreshview_refresh_days_ago);
        refreshTimeText = Utils.format(refreshTimeText, minutes / 60 / 24);
    }
    mHeaderTimeTextView.setText(refreshTimeText);
}

AutoInstallsLayout(Context context, AppWidgetHost appWidgetHost,
        LayoutParserCallback callback, Resources res,
        int layoutId, String rootTag) {
    mContext = context;
    mAppWidgetHost = appWidgetHost;
    mCallback = callback;

    mPackageManager = context.getPackageManager();
    mValues = new ContentValues();
    mRootTag = rootTag;

    mSourceRes = res;
    mLayoutId = layoutId;

    mIdp = LauncherAppState.getIDP(context);
    mRowCount = mIdp.numRows;
    mColumnCount = mIdp.numColumns;
}

/**
 * Used to inflate the Workspace from XML.
 *
 * @param context The application's context.
 * @param attrs The attributes set containing the Workspace's customization values.
 * @param defStyle Unused.
 */
public Workspace(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    mLauncher = Launcher.getLauncher(context);
    mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this);
    final Resources res = getResources();
    DeviceProfile grid = mLauncher.getDeviceProfile();
    mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens();
    mWallpaperManager = WallpaperManager.getInstance(context);

    mWallpaperOffset = new WallpaperOffsetInterpolator(this);
    mOverviewModeShrinkFactor =
            res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100f;

    setOnHierarchyChangeListener(this);
    setHapticFeedbackEnabled(false);

    initWorkspace();

    // Disable multitouch across the workspace/all apps/customize tray
    setMotionEventSplittingEnabled(true);
}

/**
 * Used to create a new DragLayer from XML.
 *
 * @param context The application's context.
 * @param attrs The attributes set containing the Workspace's customization values.
 */
public DragLayer(Context context, AttributeSet attrs) {
    super(context, attrs);

    // Disable multitouch across the workspace/all apps/customize tray
    setMotionEventSplittingEnabled(false);
    setChildrenDrawingOrderEnabled(true);

    final Resources res = getResources();
    mLeftHoverDrawable = res.getDrawable(R.drawable.page_hover_left);
    mRightHoverDrawable = res.getDrawable(R.drawable.page_hover_right);
    mLeftHoverDrawableActive = res.getDrawable(R.drawable.page_hover_left_active);
    mRightHoverDrawableActive = res.getDrawable(R.drawable.page_hover_right_active);
    mIsRtl = Utilities.isRtl(res);
    mFocusIndicatorHelper = new ViewGroupFocusHelper(this);
}

/**
 * Decode and sample down a bitmap from resources to the requested width and
 * height.
 * 
 * @param res
 *            The resources object containing the image data
 * @param resId
 *            The resource id of the image data
 * @param reqWidth
 *            The requested width of the resulting bitmap
 * @param reqHeight
 *            The requested height of the resulting bitmap
 * @param cache
 *            The ImageCache used to find candidate bitmaps for use with
 *            inBitmap
 * @return A bitmap sampled down from the original with the same aspect
 *         ratio and dimensions that are equal to or greater than the
 *         requested width and height
 */
public static Bitmap decodeSampledBitmapFromResource(Resources res,
                                                        int resId, int reqWidth, int reqHeight, ImageCache cache) {

    // BEGIN_INCLUDE (read_bitmap_dimensions)
    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeResource(res, resId, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, reqWidth,
            reqHeight);
    // END_INCLUDE (read_bitmap_dimensions)

    // If we're running on Honeycomb or newer, try to use inBitmap
    if (Utils.hasHoneycomb()) {
        addInBitmapOptions(options, cache);
    }

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    return BitmapFactory.decodeResource(res, resId, options);
}

@SuppressWarnings("deprecation")
public static ContextWrapper wrap(Context context, Locale newLocale)
{
    final Resources res = context.getResources();
    final Configuration configuration = res.getConfiguration();

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
    {
        configuration.setLocale(newLocale);
        LocaleList localeList = new LocaleList(newLocale);
        LocaleList.setDefault(localeList);
        configuration.setLocales(localeList);
        context = context.createConfigurationContext(configuration);
    }
    else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1)
    {
        configuration.setLocale(newLocale);
        context = context.createConfigurationContext(configuration);
    }
    else
    {
        configuration.locale = newLocale;
        res.updateConfiguration(configuration, res.getDisplayMetrics());
    }
    return new ContextWrapper(context);
}

public AllAppsContainerView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    Resources res = context.getResources();

    mLauncher = Launcher.getLauncher(context);
    mSectionNamesMargin = res.getDimensionPixelSize(R.dimen.all_apps_grid_view_start_margin);
    mApps = new AlphabeticalAppsList(context);
    mAdapter = new AllAppsGridAdapter(mLauncher, mApps, mLauncher, this);
    mApps.setAdapter(mAdapter);
    mLayoutManager = mAdapter.getLayoutManager();
    mItemDecoration = mAdapter.getItemDecoration();
    DeviceProfile grid = mLauncher.getDeviceProfile();
    if (FeatureFlags.LAUNCHER3_ALL_APPS_PULL_UP && !grid.isVerticalBarLayout()) {
        mRecyclerViewBottomPadding = 0;
        setPadding(0, 0, 0, 0);
    } else {
        mRecyclerViewBottomPadding =
                res.getDimensionPixelSize(R.dimen.all_apps_list_bottom_padding);
    }
    mSearchQueryBuilder = new SpannableStringBuilder();
    Selection.setSelection(mSearchQueryBuilder, 0);

}

public float pixel2dip(Context context, float n){
    Resources resources = context.getResources();
    DisplayMetrics metrics = resources.getDisplayMetrics();
    float dp = n / (metrics.densityDpi / 160f);
    return dp;

}

/**
 * 使其系统更改字体大小无效
 */
private void initTextSize() {
    Resources res = getResources();
    Configuration config = new Configuration();
    config.setToDefaults();
    res.updateConfiguration(config, res.getDisplayMetrics());
}

@ProtoMethod(description = "Convert given dp to pixels", example = "")
@ProtoMethodParam(params = {""})
public float dpToPixels(float dp) {
    Resources resources = getContext().getResources();
    DisplayMetrics metrics = resources.getDisplayMetrics();
    float px = dp * (metrics.densityDpi / 160f);
    return px;
}

public static void loadErrorPage(final AmazonWebView webView, final String desiredURL, final int errorCode) {
    final Pair<Integer, Integer> errorResourceIDs = errorDescriptionMap.get(errorCode);

    if (errorResourceIDs == null) {
        throw new IllegalArgumentException("Cannot load error description for unsupported errorcode=" + errorCode);
    }

    // This is quite hacky: ideally we'd just load the css file directly using a '<link rel="stylesheet"'.
    // However WebView thinks it's still loading the original page, which can be an https:// page.
    // If mixed content blocking is enabled (which is probably what we want in Focus), then webkit
    // will block file:///android_res/ links from being loaded - which blocks our css from being loaded.
    // We could hack around that by enabling mixed content when loading an error page (and reenabling it
    // once that's loaded), but doing that correctly and reliably isn't particularly simple. Loading
    // the css data and stuffing it into our html is much simpler, especially since we're already doing
    // string substitutions.
    // As an added bonus: file:/// URIs are broken if the app-ID != app package, see:
    // https://code.google.com/p/android/issues/detail?id=211768 (this breaks loading css via file:///
    // references when running debug builds, and probably klar too) - which means this wouldn't
    // be possible even if we hacked around the mixed content issues.
    final String cssString = HtmlLoader.loadResourceFile(webView.getContext(), R.raw.errorpage_style, null);

    final Map<String, String> substitutionMap = new ArrayMap<>();

    final Resources resources = webView.getContext().getResources();

    substitutionMap.put("%page-title%", resources.getString(R.string.errorpage_title));
    substitutionMap.put("%button%", resources.getString(R.string.errorpage_refresh));

    substitutionMap.put("%messageShort%", resources.getString(errorResourceIDs.first));
    substitutionMap.put("%messageLong%", resources.getString(errorResourceIDs.second, desiredURL));

    substitutionMap.put("%css%", cssString);

    final String errorPage = HtmlLoader.loadResourceFile(webView.getContext(), R.raw.errorpage, substitutionMap);

    // We could load the raw html file directly into the webview using a file:///android_res/
    // URI - however we'd then need to do some JS hacking to do our String substitutions. Moreover
    // we'd have to deal with the mixed-content issues detailed above in that case.
    webView.loadDataWithBaseURL(desiredURL, errorPage, "text/html", "UTF8", desiredURL);
}

@Override
public void onClick (View view) {
    String strNumeroGatitos;
    int intNumeroGatitos = -1;
    // objeto recursos para el acceso a los mismos
    Resources res = this.getResources();

    // recuperar la vista con la respuesta a la pregunta
    EditText txtGatitos  = (EditText) findViewById(R.id.preguntaGatitos);
    // recuperar la respuesta a la pregunta (como texto)
    strNumeroGatitos = txtGatitos.getText().toString();

    try {
        // convertir el valor introducido en el Edit Text a numerico
        intNumeroGatitos = Integer.parseInt(strNumeroGatitos);
    }
    catch (NumberFormatException ex) {
        // controlamos el error en caso que no se haya introducido un numero
        Toast.makeText(this, R.string.error_numerico, Toast.LENGTH_LONG).show();
        intNumeroGatitos = -1;
    }

    // mostrar un mensaje en función del número de gatitos
    if (intNumeroGatitos != -1) {
        // recuepramos la vista respuesta
        TextView txtRespuesta = (TextView) findViewById(R.id.respuestaGatitos);
        // el segundo parámetro sirve para seleccional que forma se ha de usar.
        // el tercer parámetro es opcional. Si se ha indicado formato en la cadena un formato debemos indicar aquí
        // los parámetros requeridos.
        txtRespuesta.setText(res.getQuantityString(R.plurals.gatitos, intNumeroGatitos, intNumeroGatitos));

    }
}

@Inject
public TasksPresenter(Backstack backstack, TaskRepository taskRepository, MessageQueue messageQueue, Resources resources) {
    this.backstack = backstack;
    this.taskRepository = taskRepository;
    this.messageQueue = messageQueue;
    this.resources = resources;
}

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

    Resources res = getContext().getResources();
    mDefaultColor = res.getColor(R.color.accentColor);

    indeterminateDrawable = new MaterialProgressDrawable(getContext(), findViewById(android.R.id.progress));
    indeterminateDrawable.setBackgroundColor(CIRCLE_BG_LIGHT);
    indeterminateDrawable.setAlpha(255);
    indeterminateDrawable.updateSizes(MaterialProgressDrawable.XLARGE);
    indeterminateDrawable.setColorSchemeColors(getColor());
    indeterminateDrawable.start();
    setIndeterminateDrawable(indeterminateDrawable);
}

private void setupContext() {
    when(mContext.getApplicationContext()).thenReturn(mContext);
    when(mContext.getString(R.string.successfully_saved_sensor_message))
            .thenReturn("EDIT_RESULT_OK");
    when(mContext.getString(R.string.successfully_added_sensor_message))
            .thenReturn("ADD_EDIT_RESULT_OK");
    when(mContext.getString(R.string.successfully_deleted_sensor_message))
            .thenReturn("DELETE_RESULT_OK");

    when(mContext.getResources()).thenReturn(mock(Resources.class));
}

/**
 * @param context The view context in which this item will be shown.
 * @param attrs The attributes of the XML tag that is inflating the view.
 */
public MostVisitedLayout(Context context, AttributeSet attrs) {
    super(context, attrs);

    Resources res = getResources();
    mVerticalSpacing = res.getDimensionPixelOffset(R.dimen.most_visited_vertical_spacing);
    mMinHorizontalSpacing = res.getDimensionPixelOffset(
            R.dimen.most_visited_min_horizontal_spacing);
    mMaxHorizontalSpacing = res.getDimensionPixelOffset(
            R.dimen.most_visited_max_horizontal_spacing);
    mMaxWidth = res.getDimensionPixelOffset(R.dimen.most_visited_layout_max_width);
}

private int getInternalDimensionSize(Resources res, String key) {
    int result = 0;
    int resourceId = res.getIdentifier(key, "dimen", "android");
    if (resourceId > 0) {
        result = res.getDimensionPixelSize(resourceId);
    }
    return result;
}

private int getStatusBarHeight() {
    Resources resources = getResources();
    int resourceId = resources.getIdentifier("status_bar_height", "dimen", "android");
    if (resourceId > 0) {
        return resources.getDimensionPixelSize(resourceId);
    }
    return 0;
}

@SuppressWarnings("deprecation")
private void initSnakeView() {
    _logger = new SmartMirrorLogger(TAG);
    _logger.Debug("SnakeView created...");

    setFocusable(true);

    Resources resources = this.getContext().getResources();

    ResetTiles(4);

    LoadTile(RED_STAR, resources.getDrawable(R.drawable.redstar));
    LoadTile(YELLOW_STAR, resources.getDrawable(R.drawable.yellowstar));
    LoadTile(GREEN_STAR, resources.getDrawable(R.drawable.greenstar));
}