text (e.g. color, size, style)
When canvas is used as a text drawing, the fontmetrics object is used to calculate the coordinates of the position. The idea is basically the same as that of Java. AWT. fontmetrics.The fontmetrics object is based on four basic coordinates:
Fontmetrics. TopFontmetrics. AscentFontmetrics. DescentFontmetrics. Bottom
Paint textpaint = new paint (paint. anti_alias_flag );
Textpaint. settextsize (35 );
Textpaint. setcolor (color. White );
// Fontmetrics object
Fontmetri
meaning: Shifts one digit to the right is equivalent to dividing 2, and shifts n digits to the right is equivalent to dividing by the Npower of 2.>>> Operation rule: in binary format, all numbers are moved to the right to correspond to the steep digits. The low position is removed (discarded), and the high position is filled with zero. For a positive value, it is the same as the shifted right value. For a negative number, it is different.Other structures are similar to>.SummaryBinary operators,
that it is not EXACTLY (if you specify it explicitly, We will ignore it ), calculate what you want based on the padding and progress bar width. If it is not EXACTLY, we encapsulate the padding theight and pass it to the control to measure the height.
After the measurement is complete, it's our onDraw ~~~4. onDraw
@ Overrideprotected synchronized void onDraw (Canvas canvas) {canvas. save (); // the paint brush is moved to the specified position of paddingLeft and getHeight ()/2. Note that the
. drawRoundRect (new RectF (circleOffset, 0, circleOffset + redReginWidth, height), height/2, height/2, paint); // display the text sliderText in the middle of the painting. setTextSize (textSize); paint. setColor (Color. WHITE); int yCenterPos = (int) (canvas. getHeight ()/2)-(paint. descent () + paint. ascent ()/2 )); // Calculate the value in Y int startX = circleOffset + (redReginWidth-(int) paint. measureText (sliderText, 0, sliderText. length ()
fontHeight = fmPaint. bottom-fmPaint. top; int drHeight = rect. bottom-rect. top; int top = drHeight/2-fontHeight/4; int bottom = drHeight/2 + fontHeight/4; fontMetricsInt. ascent =-bottom; fontMetricsInt. top =-bottom; fontMetricsInt. bottom = top; fontMetricsInt. descent = top;} return rect. right ;}@ Override public void draw (Canvas canvas, CharSequence text, int start, int end, float x, int top, int y, int bottom, Paint paint) {Drawable drawable
be result = specSize; } else { // Measure the text (beware: ascent is a negative number) result = (int) (-mAscent + mTextPaint.descent()) + mPaddingTop + mPaddingBottom; if (specMode == MeasureSpec.AT_MOST) { // Respect AT_MOST value if that was what is called for by measureSpec result = Math.min(result, specSize); } } return r
): setting this parameter to true helps display the text on the LCD screen.
SetTextAlign(Paint. Align align): sets the alignment direction of the drawn text.
SetTextScaleX(Float scaleX): sets the scale ratio of the X axis of the drawn text to achieve the text stretching effect.
SetTextSize(Float textSize): Set the font size of the drawn text.
SetTextSkewX(Float skewX): Set italic text. skewX is a skewed radian.
SetTypeface(Typeface typeface): Set the Typeface object, that is, the font style
This time I studied mangos, the legendary open-source online game server framework, which has a good Chinese name called mango. This Dongdong likes to eat, so it immediately draws closer to me. It is a research study. So far, I have only read its skills.CodeMy goal is to learn some of its design ideas, code organization skills, and technical processing in game logic. After all, it is because wow's private server is widely used in the industry.
After understanding the basic process of skill proc
disk (and every day platform volume of the sun but the price does not rise or a small The principle of practical application of the Series Yin Wash dish:1, the application of a series of yin washing plate in the ascent and the bottom of the flat, after the full speculation of the stock in the crash on the way to disable.2, the Yang line to eat a string of yin, for the best purchase point.3, some of the rise in the stock, the share price in a relativ
After deploying the bookstore example in the previous book, you can see the login page and cannot enter it at all. The following error occurs. This book is basically useless. You have to buy another book.
17:30:13, 288 [COM. ascent. Dao. hibernate. mermerhibernatedao]-[Error]Failed to get user information based on user name!Org. springframework. JDBC. uncategorizedsqlexception: (hibernate operation): encouNtered sqlexception [illegal mix of collati
]=> int (1) [1]=> Int (3) [2]=> string (1) "2" [3]=> int (2) [4]= > int (1) } }
After sorting in this example, the first array will contain 10,100,100, "a" (sorted as String ascent), and the second array will contain 1, 3, "2", and 1 (sorted as numeric drop).
Example 2. Sorting multi-dimensional array
The code is as follows
Copy Code
$ar = Array (Array ("A", "one, One,", "a"),Array (1, 2, "2", 3, 1));
' leg. Click the intersection of the two rulers in the upper-left corner and drag to the intersection of 0 points and 317 (the values in this example).
Now, you can place other guides according to the values we've calculated earlier: Ascending, upper-case, and X-Heights.
Now, back to the illustrator document where you originally drew the new font, select your a, copy it. Then switch to the new document where you draw the guides and paste a in.
The
(object-Arrange-before), but it is generally the case because it was created later. Select all paths (the new ending path and the string path) and make a clipping mask (object-clipping mask-make, Command/ctrl + 7), and now a small portion of the letter "K" should disappear behind the lower part of the letter C.
Repeat this step for the letter "F" on the fourth string.
5.3.jpg (32.02 KB)
The lower part of the letter "E" in "Me" should now coincide with th
monitoringMrecyclerview.addonscrolllistener (NewRecyclerview.onscrolllistener () {@Override Public voidOnscrollstatechanged (Recyclerview Recyclerview,intnewstate) { //View Source There are three states of State: Scroll_state_idle (stationary), scroll_state_dragging (Ascent), scroll_state_settling (drop) if(newstate = = Scroll_state_idle) {//Load picture resources when scrolling at rest, greatly improving smoothnessMrecyclerviewadapter.
is to say, in the time you hesitate, it is still falling down, so an irreversible situation. Still need to think about it?!Follow the guidance of the Buddha. Put down, such a helpless thing, why pay attention to it,At this point, the abandonment may be just a few months of user coverage is missing, but the coverage will be higher. and is self-motivated.Spend time on more meaningful things. Make the product better, this is the direction that should be actively selected.Well, the conclusion came
situation.In this way, whether it is the game or AR, VR, including the image of the high demand for the app, and so on, can be improved through the very scary technology. This is the difference between "flying in the Sky" and "underground Running", as Yu Chengdong mentioned.Ladder building: What are the scary technologies that will shorten the ascent path for Android?It is noteworthy that the Huawei-led technology upgrade, not only for the Glory play
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