Java Code Examples for android.content.res.Resources

/**
 * 获取导航栏高度
 *
 * @param context
 * @return
 */
public static int getNavigationBarHeight(Context context) {

    boolean hasMenuKey = ViewConfiguration.get(context).hasPermanentMenuKey();
    boolean hasBackKey = KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_BACK);
    if (!hasMenuKey && !hasBackKey) {
        //没有物理按钮（虚拟导航栏）
        print("没有物理按钮（虚拟导航栏）");
        Resources resources = context.getResources();
        int resourceId = resources.getIdentifier("navigation_bar_height", "dimen", "android");
        //获取NavigationBar的高度
        int height = resources.getDimensionPixelSize(resourceId);
        return height;
    } else {
        print("有物理导航栏，小米非全面屏");
        //有物理导航栏，小米非全面屏
        return 0;
    }
}
 

@Override
public void inflate(Resources res, XmlPullParser parser, AttributeSet attrs, Theme theme)
        throws XmlPullParserException, IOException {
    final VectorDrawableState state = mVectorState;
    final VPathRenderer pathRenderer = new VPathRenderer();
    state.mVPathRenderer = pathRenderer;

    final TypedArray a = obtainAttributes(res, theme, attrs, R.styleable.VectorDrawable);
    updateStateFromTypedArray(a);
    a.recycle();

    state.mCacheDirty = true;
    inflateInternal(res, parser, attrs, theme);

    mTintFilter = updateTintFilter(mTintFilter, state.mTint, state.mTintMode);
}
 

private static void addEmotions(SpannableString value) {
    // Paint.FontMetrics fontMetrics = mEditText.getPaint().getFontMetrics();
    // int size = (int)(fontMetrics.descent-fontMetrics.ascent);
    int size = 50;

    Map<String, Integer> smiles = SmileyMap.getInstance().getSmiles();
    Resources resources = BeeboApplication.getAppContext().getResources();

    Matcher localMatcher = EMOTION_URL.matcher(value);
    while (localMatcher.find()) {
        String key = localMatcher.group(0);
        if (smiles.containsKey(key)) {
            int k = localMatcher.start();
            int m = localMatcher.end();
            if (m - k < 8) {
                Drawable drawable = resources.getDrawable(smiles.get(key));
                if (drawable != null) {
                    drawable.setBounds(0, 0, size, size);
                }
                ImageSpan localImageSpan = new ImageSpan(drawable, ImageSpan.ALIGN_BASELINE);
                value.setSpan(localImageSpan, k, m, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
            }
        }

    }
}
 

public static Sound[] getSounds(Context context) {
    Resources res = context.getApplicationContext().getResources();

    TypedArray labels = res.obtainTypedArray(R.array.labels);
    TypedArray ids = res.obtainTypedArray(R.array.ids);

    Sound[] sounds = new Sound[labels.length()];

    for (int i = 0; i < sounds.length; i++) {
        sounds[i] = new Sound(labels.getString(i), ids.getResourceId(i, -1));
    }

    labels.recycle();
    ids.recycle();

    return sounds;
}
 

private HolographicOutlineHelper(Context context) {
    Resources res = context.getResources();

    float mediumBlur = res.getDimension(R.dimen.blur_size_medium_outline);
    mMediumOuterBlurMaskFilter = new BlurMaskFilter(mediumBlur, BlurMaskFilter.Blur.OUTER);
    mMediumInnerBlurMaskFilter = new BlurMaskFilter(mediumBlur, BlurMaskFilter.Blur.NORMAL);

    mThinOuterBlurMaskFilter = new BlurMaskFilter(
            res.getDimension(R.dimen.blur_size_thin_outline), BlurMaskFilter.Blur.OUTER);

    mShadowBlurMaskFilter = new BlurMaskFilter(
            res.getDimension(R.dimen.blur_size_click_shadow), BlurMaskFilter.Blur.NORMAL);

    mDrawPaint.setFilterBitmap(true);
    mDrawPaint.setAntiAlias(true);
    mBlurPaint.setFilterBitmap(true);
    mBlurPaint.setAntiAlias(true);
    mErasePaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_OUT));
    mErasePaint.setFilterBitmap(true);
    mErasePaint.setAntiAlias(true);
}
 

public static String getDisplayMetricsDesc() {
    DisplayMetrics curDisplayMetrics = null;
    Resources res = null;
    int swdp = 0;
    if (sContext != null) {
        res = sContext.getResources();
    }
    if (res != null) {
        curDisplayMetrics = res.getDisplayMetrics();
        swdp = res.getConfiguration().smallestScreenWidthDp;
    }
    StringBuilder sb = new StringBuilder();
    sb.append("当前显示信息:").append(curDisplayMetrics)
            .append(" --> 实际显示信息:").append(displayMetrics)
            .append(" 最短宽 dpi:").append(swdp)
    ;
    return sb.toString();
}
 

public static WindowManager.LayoutParams createLayoutParams(Context context) {
  Resources res = context.getResources();
  int width = res.getDimensionPixelSize(R.dimen.data_inspector_menu_width);

  final WindowManager.LayoutParams params =
      new WindowManager.LayoutParams(width, WRAP_CONTENT, TYPE_SYSTEM_ERROR,
          FLAG_NOT_FOCUSABLE | FLAG_NOT_TOUCH_MODAL | FLAG_LAYOUT_NO_LIMITS
              | FLAG_LAYOUT_INSET_DECOR | FLAG_LAYOUT_IN_SCREEN, TRANSLUCENT);
  params.y = res.getDimensionPixelSize(R.dimen.data_inspector_toolbar_height);
  if (Build.VERSION.SDK_INT == 23) { // MARSHMALLOW
    params.y = res.getDimensionPixelSize(R.dimen.data_inspector_toolbar_height_m);
  }
  params.gravity = Gravity.TOP | Gravity.RIGHT;

  return params;
}
 

public QrCodeFinderView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    mPaint = new Paint();

    Resources resources = getResources();
    mMaskColor = resources.getColor(R.color.qr_code_finder_mask);
    mFrameColor = resources.getColor(R.color.qr_code_finder_frame);
    mLaserColor = resources.getColor(R.color.qr_code_finder_laser);
    mTextColor = resources.getColor(R.color.qr_code_white);

    mFocusThick = 1;
    mAngleThick = 8;
    mAngleLength = 40;
    mScannerAlpha = 0;
    init(context);
}
 

private Drawable resolveResource() {
	Resources rsrc = getResources();
	if (rsrc == null) {
		return null;
	}

	Drawable d = null;

	if (mResource != 0) {
		try {
			d = rsrc.getDrawable(mResource);
		} catch (Exception e) {
			Log.w(TAG, "Unable to find resource: " + mResource, e);
			// Don't try again.
			mResource = 0;
		}
	}
	return RoundedDrawable.fromDrawable(d);
}
 

public FingerprintHelper initialize(@NonNull Resources resources) {
    if (mAuthenticator != null) return this;

    sensorMissing = resources.getString(R.string.fingerprint_sensor_hardware_missing);
    fingerprintNotSetup = resources.getString(R.string.fingerprint_not_set_up);

    // Try Pass first
    try {
        mAuthenticator = new SamsungPass();
        registerAuthenticator(mAuthenticator);
    } catch (Exception e) {
        // nothing to do. Try native next
        logger.debug("Couldn't use Pass. Trying native fingerprint.");
    }

    // Native fingerprint is supported on M+ only.
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        registerAuthenticator(new NativeFingerprint());
    }

    return this;
}
 

private void upgradeAutocorrectionSettings(final SharedPreferences prefs, final Resources res) {
    final String thresholdSetting =
            prefs.getString(PREF_AUTO_CORRECTION_THRESHOLD_OBSOLETE, null);
    if (thresholdSetting != null) {
        SharedPreferences.Editor editor = prefs.edit();
        editor.remove(PREF_AUTO_CORRECTION_THRESHOLD_OBSOLETE);
        final String autoCorrectionOff =
                res.getString(R.string.auto_correction_threshold_mode_index_off);
        if (thresholdSetting.equals(autoCorrectionOff)) {
            editor.putBoolean(PREF_AUTO_CORRECTION, false);
        } else {
            editor.putBoolean(PREF_AUTO_CORRECTION, true);
        }
        editor.commit();
    }
}
 

@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;
}
 

/**
 * Execute {@link #job(Resources)} method in specified system locale exclusively.
 *
 * @param res the resources to use.
 * @param newLocale the locale to change to. Run in system locale if null.
 * @return the value returned from {@link #job(Resources)}.
 */
public T runInLocale(final Resources res, final Locale newLocale) {
    synchronized (sLockForRunInLocale) {
        final Configuration conf = res.getConfiguration();
        if (newLocale == null || newLocale.equals(conf.locale)) {
            return job(res);
        }
        final Locale savedLocale = conf.locale;
        try {
            conf.locale = newLocale;
            res.updateConfiguration(conf, null);
            return job(res);
        } finally {
            conf.locale = savedLocale;
            res.updateConfiguration(conf, null);
        }
    }
}
 

public @Nullable String getDescription() {
    final Resources res = Resources.getSystem();
    if ((flags & FLAG_SD) != 0) {
        if (isInteresting(label)) {
            return res.getString(com.android.internal.R.string.storage_sd_card_label, label);
        } else {
            return res.getString(com.android.internal.R.string.storage_sd_card);
        }
    } else if ((flags & FLAG_USB) != 0) {
        if (isInteresting(label)) {
            return res.getString(com.android.internal.R.string.storage_usb_drive_label, label);
        } else {
            return res.getString(com.android.internal.R.string.storage_usb_drive);
        }
    } else {
        return null;
    }
}
 

private void initFastScrollerEx(Context context, AttributeSet attrs, int defStyleAttr) {
    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RecyclerView,
            defStyleAttr, 0);
    StateListDrawable verticalThumbDrawable = (StateListDrawable) a
            .getDrawable(R.styleable.RecyclerView_fastScrollVerticalThumbDrawable);
    Drawable verticalTrackDrawable = a
            .getDrawable(R.styleable.RecyclerView_fastScrollVerticalTrackDrawable);
    StateListDrawable horizontalThumbDrawable = (StateListDrawable) a
            .getDrawable(R.styleable.RecyclerView_fastScrollHorizontalThumbDrawable);
    Drawable horizontalTrackDrawable = a
            .getDrawable(R.styleable.RecyclerView_fastScrollHorizontalTrackDrawable);
    Resources resources = getContext().getResources();
    new FastScrollerEx(this, verticalThumbDrawable, verticalTrackDrawable,
            horizontalThumbDrawable, horizontalTrackDrawable,
            resources.getDimensionPixelSize(R.dimen.fastscroll_default_thickness),
            resources.getDimensionPixelSize(R.dimen.fastscroll_minimum_range),
            resources.getDimensionPixelOffset(R.dimen.fastscroll_margin));
}
 

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

}
 

public void init(List<Integer> milliliter) {
	if (null == milliliter || milliliter.size() == 0)
		return;
	this.milliliter = delZero(milliliter);
	Resources res = getResources();
	tb = res.getDimension(R.dimen.historyscore_tb);
	interval_left_right = tb * 2.0f;
	interval_left = tb * 0.5f;

	paint_date = new Paint();
	paint_date.setStrokeWidth(tb * 0.1f);
	paint_date.setTextSize(tb * 1.2f);
	paint_date.setColor(fineLineColor);

	paint_brokenLine = new Paint();
	paint_brokenLine.setStrokeWidth(tb * 0.1f);
	paint_brokenLine.setColor(blueLineColor);
	paint_brokenLine.setAntiAlias(true);

	paint_dottedline = new Paint();
	paint_dottedline.setStyle(Paint.Style.STROKE);
	paint_dottedline.setColor(fineLineColor);

	paint_brokenline_big = new Paint();
	paint_brokenline_big.setStrokeWidth(tb * 0.4f);
	paint_brokenline_big.setColor(fineLineColor);
	paint_brokenline_big.setAntiAlias(true);

	framPanint = new Paint();
	framPanint.setAntiAlias(true);
	framPanint.setStrokeWidth(2f);

	path = new Path();
	bitmap_point = BitmapFactory.decodeResource(getResources(),
			R.drawable.wire_frame_icon_point_blue);
	setLayoutParams(new LayoutParams(
			(int) (this.milliliter.size() * interval_left_right),
			LayoutParams.MATCH_PARENT));
}
 

static String getAppIdFromResource(Context ctx) {
    try {
        Resources res = ctx.getResources();
        String pkgName = ctx.getPackageName();
        int res_id = res.getIdentifier("app_id", "string", pkgName);
        return res.getString(res_id);
    } catch (Exception ex) {
        ex.printStackTrace();
        return "??? (failed to retrieve APP ID)";
    }
}
 

/**
 * Create a VectorDrawableCompat from inside an XML document using an optional
 * {@link Resources.Theme}. Called on a parser positioned at a tag in an XML
 * document, tries to create a Drawable from that tag. Returns {@code null}
 * if the tag is not a valid drawable.
 */
@SuppressLint("NewApi")
public static VectorDrawableCompat createFromXmlInner(Resources r, XmlPullParser parser,
                                                      AttributeSet attrs, Resources.Theme theme) throws XmlPullParserException, IOException {
    final VectorDrawableCompat drawable = new VectorDrawableCompat();
    drawable.inflate(r, parser, attrs, theme);
    return drawable;
}
 

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

    mShortMonthLabels = new DateFormatSymbols().getShortMonths();

    mNormalTextColor = getColor(context, R.color.bsp_text_color_primary_light);
    // Same as background color
    mSelectedMonthTextColor = getColor(context, R.color.bsp_date_picker_view_animator);
    mCurrentMonthTextColor = Utils.getThemeAccentColor(context);
    mDisabledMonthTextColor = getColor(context, R.color.bsp_text_color_disabled_light);

    Calendar now = Calendar.getInstance();
    mCurrentMonth = now.get(Calendar.MONTH);
    mCurrentYear = now.get(Calendar.YEAR);

    MONTH_LABEL_TEXT_SIZE = res.getDimensionPixelSize(R.dimen.bsp_month_picker_month_label_size);
    MONTH_SELECTED_CIRCLE_SIZE = res.getDimensionPixelSize(R.dimen.bsp_month_select_circle_radius);

    mRowHeight = (res.getDimensionPixelOffset(R.dimen.bsp_date_picker_view_animator_height)
            - MONTH_NAVIGATION_BAR_SIZE) / NUM_ROWS;
    mEdgePadding = res.getDimensionPixelSize(R.dimen.bsp_month_view_edge_padding);

    // TODO: Set up accessibility components.
    // Sets up any standard paints that will be used
    initView();
}
 

/**
 * 获取虚拟按键的高度
 *
 * @param context
 * @return
 */
public static int getNavigationBarHeight(Context context) {
    int result = 0;
    if (hasNavigationBar(context)) {
        Resources res = context.getResources();
        int resourceId = res.getIdentifier("navigation_bar_height", "dimen", "android");
        if (resourceId > 0) {
            result = res.getDimensionPixelSize(resourceId);
        }
    }
    return result;
}
 

/**
 * Return the feature bits set by default on a window.
 * @param context The context used to access resources
 */
public static int getDefaultFeatures(Context context) {
    int features = 0;

    final Resources res = context.getResources();
    if (res.getBoolean(com.android.internal.R.bool.config_defaultWindowFeatureOptionsPanel)) {
        features |= 1 << FEATURE_OPTIONS_PANEL;
    }

    if (res.getBoolean(com.android.internal.R.bool.config_defaultWindowFeatureContextMenu)) {
        features |= 1 << FEATURE_CONTEXT_MENU;
    }

    return features;
}
 

/**
 * Creates a custom Bitmap containing a letter, digit, or default image (if no letter
 * or digit can be resolved), positioned at the center, with a randomized background
 * color, picked from {@link #colors}, based on the hashed value of the given string.
 *
 * @param displayName Any string value
 * @return {@link Bitmap}
 */
public Bitmap getLetterTile(String displayName) {
    // Don't allow empty strings
    if (displayName == null || displayName.length() == 0) { return null; }

    final char firstChar = displayName.charAt(0);

    // Create a Bitmap with the width & height specified from resources
    final Bitmap bitmap = Bitmap.createBitmap(tileSize, tileSize, Bitmap.Config.ARGB_8888);

    // Setup our canvas for drawing
    final Canvas c = canvas;
    c.setBitmap(bitmap);
    c.drawColor(pickColor(displayName));

    // We want to use the default Bitmap if our character is not a letter or digit
    if (Character.isLetterOrDigit(firstChar)) {
        this.firstChar[0] = Character.toUpperCase(firstChar);

        // Set the paint text size as half the bitmap's height
        this.paint.setTextSize(tileSize >> 1);

        // Measure the bounds of our first character
        this.paint.getTextBounds(this.firstChar, 0, 1, bounds);

        // Draw the character on the Canvas
        c.drawText(this.firstChar, 0, 1,
                tileSize / 2,
                tileSize / 2 + (bounds.bottom - bounds.top) / 2,
                paint);
    } else {
        // (32 - 24) / 2 = 4
        final float density = Resources.getSystem().getDisplayMetrics().density;
        final float defSize = (4f * density);
        c.drawBitmap(defaultBitmap, defSize, defSize, null);
    }

    return bitmap;
}
 

@Nullable
public static String getString(int resId, Context context) {
  try {
    return context.getString(resId);
  } catch (Resources.NotFoundException e) {
    return null;
  }
}
 

/**
 * turn an array of resource-colors (contains resource-id integers) into an
 * array list of actual color integers
 * 
 * @param r
 * @param colors an integer array of resource id's of colors
 * @return
 */
public static List<Integer> createColors(Resources r, int[] colors) {

    List<Integer> result = new ArrayList<Integer>();

    for (int i : colors) {
        result.add(r.getColor(i));
    }

    return result;
}
 

public static int getScriptId(final Resources resources,
        @Nonnull final InputMethodSubtype subtype) {
    final Integer value = sScriptIdsForSubtypes.get(subtype);
    if (null == value) {
        final int scriptId = Builder.readScriptId(resources, subtype);
        sScriptIdsForSubtypes.put(subtype, scriptId);
        return scriptId;
    }
    return value;
}
 

private CharSequence getTopText(long occupancy, final String suffix) {
    final String str = String.valueOf(occupancy) + "\n" + suffix;
    final int len = str.length();
    final int lenFx = len - suffix.length();
    final Resources resources = getResources();

    SpannableString span = new SpannableString(str);
    span.setSpan(new AbsoluteSizeSpan(resources.getDimensionPixelSize(R.dimen.font_20)),
            0, lenFx, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    span.setSpan(new ForegroundColorSpan(resources.getColor(R.color.white_alpha_224)),
            0, lenFx, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

    return span;
}
 

@Test
public void testHasVisibleCustomDrawable() {
  final Resources resources = getApplicationContext().getResources();
  final Drawable customDrawable = resources.getDrawable(R.drawable.custom_drawable);
  final Predicate<View> hasVisibleDrawable = ViewPredicates.hasVisibleDrawable(customDrawable);

  assertThat(hasVisibleDrawable.apply(mImageViewWithCustomDrawable)).isTrue();
  mImageViewWithCustomDrawable.setVisibility(View.GONE);
  assertThat(hasVisibleDrawable.apply(mImageViewWithCustomDrawable)).isFalse();
}
 

/**
 * Update the background color of the mBgCircle image view.
 */
public void setBackgroundColorResource(int colorRes) {
    if (getBackground() instanceof ShapeDrawable) {
        final Resources res = getResources();
        ((ShapeDrawable) getBackground()).getPaint().setColor(res.getColor(colorRes));
    }
}
 

/**
 * Display the error dialog of not connect device.
 *
 * @param name device name
 */
private void showErrorDialogNotConnect(final String name) {
    Resources res = getActivity().getResources();
    String message;
    if (name == null) {
        message = res.getString(R.string.heart_rate_setting_dialog_error_message,
                getString(R.string.heart_rate_setting_default_name));
    } else {
        message = res.getString(R.string.heart_rate_setting_dialog_error_message, name);
    }
    showErrorDialog(message);
}