getpaint

EventThe button cannot be placed in the linearlayout. Otherwise, when you click the entire linearlayout, you cannot execute the click command in the area occupied by the button. (Maybe you can solve it by setting focusable) 18. The gettext method of edittext does not return null.(Therefore, gettext is called without mull judgment ). 19. textview: You can use Android: textstyle = "bold" in the XML file to set English to bold, However, you cannot set Chinese to bold, The method to set Ch

image copied to the target region. Because the text content of the TextView component is not// Draw from the top. Therefore, you need to recalculate the ordinate of the drawn image.Target. top = (int) (getMeasuredHeight ()-getTextSize ()/2) + 1;Target. bottom = target. top + textHeight;// To ensure that the image is not deformed, the width of the image needs to be recalculated based on the Image Height.Target. right = (int) (textHeight * (bitmap. getWidth ()/(float) bitmap. getHeight ()));// St

(context, attrs, defStyle );}@ OverrideProtected void onDraw (Canvas canvas ){// TODO Auto-generated method stubSuper. onDraw (canvas );If (! IsMeasure) {// you only need to obtain the text width once.GetTextWidth ();IsMeasure = true;}}/*** Get Text width*/Private void getTextWidth (){Paint paint = this. getPaint ();String str = this. getText (). toString ();TextWidth = (int) paint. measureText (str );}@ OverridePublic void run (){CurrentScrollX-= 2;

ImportAndroid.content.Context;ImportAndroid.graphics.Canvas;ImportAndroid.graphics.Paint;ImportAndroid.util.AttributeSet;ImportAndroid.util.Log;ImportAndroid.widget.TextView; Public classSlidetextviewextendsTextViewImplementsRunnable {Private intCurrentscrollx; Private BooleanIsstop =false; Private intTextWidth; Private BooleanIsmeasure =false; PublicSlidetextview (Context context) {Super(context); //TODO auto-generated Constructor stub } PublicSlidetextview (Context context, AttributeSe

, R.DRAWABLE.IMG3, R.DRAWABLE.IMG4, r.drawable.img5}; Private arraylist4. Create a small Origin custom object CircleShapePackage Com.world.hello.circleindicator;import Android.graphics.paint;import Android.graphics.drawable.shapedrawable;import android.graphics.drawable.shapes.shape;/** * Small Dot class * Created by Chengguo on 2016/6/1. */public class CircleShape {//Set default value private float x = 0; Private float y = 0; Private shapedrawable shape; private paint paint;

); ColorIndex = (colorindex + 1)% 3; Invalidate (); } }; Public Gradienttextview (Context context) {This (context, NULL); } public Gradienttextview (context context, AttributeSet Attrs) {This (context, attrs, 0); } public Gradienttextview (context context, AttributeSet attrs, int defstyleattr) {Super (context, Attrs, defstyl EATTR); } @Override protected void onmeasure (int widthmeasurespec, int heightmeasurespec) {super.onmeasure (widthmeas Urespec, Heigh

the android SDK provides a powerful class drawable. What does the abstract class drawable represent and how to use it? Drawable is a very abstract concept. It is learned and understood by a simple Program . Let's take a look at a simple example and draw a picture using the sub-class shapedrawable of drawable, as shown below: public class testview extends view { private shapedrawable mdrawable; Public testview (context) { super (context); int x = 10; int y = 10; int width = 300; int Height

Google found that there are several ways to do this in Android, but after actual testing, we found that the following method is the most accurate Rect bounds =NewRect (); string text= "Hello World"; Textpaint paint; Paint=Findviewbyid (R. Id. hello_world). getpaint (); paint. gettextbounds (text,0, Text. Length (), bounds );IntWidth = bounds. Width (); Paint pfont =NewPaint (); rect=NewRect (); pfont. gettextbounds ("Beans", 0, 1, Rect); log. V (T

Package COM. puppet. custom. component; import android. content. context; import android. graphics. canvas; import android. graphics. color; import android. graphics. paint; import android. widget. edittext; public class searchedittext extends edittext {private paint; Public searchedittext (context) {super (context); // defines paint = getpaint (); // define the stroke width style paint. setstyle (paint. style. stroke); // define the stroke color pain

!=OLDH) {Isshimmer=true; Mwdith=W; Mheight=h; Mpaint=Getpaint (); Mlineargradient=NewLinearGradient (0,0,mwdith,mheight,New int[]{0x33ffffff, 0xFFFFFFFF, 0x33ffffff},New float[] {0, 0.5f, 1}, Shader.TileMode.CLAMP); Mmatrix=NewMatrix (); Mlineargradient.setlocalmatrix (Mmatrix); DeltaX= MWDITH/10; Mpaint.setshader (mlineargradient); }} @Overrideprotected voidOnDraw (canvas canvas) {Super. OnDraw (canvas); if(isshimmer) {if(Mtranslate

Listview selects the last item by default.Android: stackFromBottom = "true" android: transcriptMode = "alwaysScroll"Android Chinese boldAndroid: FIG = "#000000"Android: shadowDx = "0.2" android: shadowDy = "0.0" android: shadowRadius = "0.2"Android: textStyle = "bold" can be used in xml files to set English to bold, but Chinese cannot be set to bold,The method for setting Chinese characters to bold is TextView TV = (TextView) findViewById (R. id. TextView01 );TextPaint tp = TV.

. getPaddingRight (); TextPaint paint = TV. getPaint (); float moreText = TV. getTextSize () * 3; float availableTextWidth = (TV. getWidth ()-paddingLeft-paddingRight) * 2-moreText; CharSequence ellipsizeStr = TextUtils. ellipsize (desc, paint, availableTextWidth, TextUtils. truncateAt. END); if (ellipsizeStr. length () = 16) {TV. getViewTreeObserver (). removeOnGlobalLayoutListener (this);} else {TV. getViewTreeObserver (). removeGlobalOnLayou

Facebook open-source Shimmer, a loading effect tool, enables the font to shine as follows: The link here is ghost (no object-c, ghost ZR), so I searched Shimmer android. Someone actually did it. Here, https://github.com/romainpiel/shimmer-android. The following is VcnBtq + release/Y1sajrM/Cw + a + zcC01/release + release = "brush: java;"> public class MyTextView extends TextView {private LinearGradient mLinearGradient; private Matrix mGradientMatrix; private Paint mPaint; private int mViewWidt

, boolean need2Recycle) {this. mItemCover. setImageBitmap (bitmap); if (need2Recycle) {if (bitmap! = Null) {bitmap = null; System. gc () ;}} public void loadItemCover (String remoteUrl) {UILManager. displayImage (remoteUrl, this. mItemCover, UILManager. optionsPicsPreview);} public void setItemTitle (String title) {this. mItemTitle. setText (title);} public String getItemTitle () {if (! TextUtils. isEmpty (this. mItemTitle. getText () {return this. mItemTitle. getText (). toString ();} return nu

. setImageUrl (url);} public void setItemCover (Bitmap bitmap, boolean need2Recycle) {this. mItemCover. setImageBitmap (bitmap); if (need2Recycle) {if (bitmap! = Null) {bitmap = null; System. gc () ;}} public void loadItemCover (String remoteUrl) {UILManager. displayImage (remoteUrl, this. mItemCover, UILManager. optionsPicsPreview);} public void setItemTitle (String title) {this. mItemTitle. setText (title);} public String getItemTitle () {if (! TextUtils. isEmpty (this. mItemTitle. getText ()

Summary of 16 small experiences developed by Android and 16 articles developed by Android Summary of 16 small experiences in Android development. I hope it will be helpful to anyone who is engaged in Android development. 　　1. The getTextSize returned value in TextView is in pixels (px, The unit of setTextSize () is sp. Therefore, an error occurs when the returned value is directly set. The solution is to use another form of setTextSize (). You can specify the unit: setTextSize(intunit,intsize)

(context, attrs ); } @ Override Public void onDraw (Canvas canvas ){ Super. onDraw (canvas ); DrawText (canvas, 0xffff0000 ); Super. onDraw (canvas ); } // Note: only single-line word processing is performed here. Private void drawText (Canvas canvas, int bg ){ Paint paint = getPaint (); // Obtain textview text String text = String. valueOf (getText ()); // Obtain the left margin of the first line of text Float startX = getLayout (). getLineLeft (0 )

context, AttributeSet Attrs) {Super (context, attrs);Initview ();}Public Autoscrolltextview (context context, AttributeSet attrs, int defstyle) {Super (context, attrs, Defstyle);Initview ();} private void Initview (){Setonclicklistener (this);}public void init (WindowManager windowmanager){Paint = Getpaint ();Text = GetText (). toString ();TextLength = Paint.measuretext (text);Viewwidth = GetWidth ();if (Viewwidth = = 0){if (WindowManager! = null){Di

measurehight = Measureheight (Heightmeasurespec); int measurewidth = 1024; int measurehight = 300; Viewwidth = Measurewidth; Viewhight = Measurehight; Setmeasureddimension (Viewwidth, viewhight); } privateint measurewidth (int widthmeasurespec) {int specmode = Measurespec.getmode (Widthmeasurespec); int specsize = measurespec.getsize (Widthmeasurespec); if (Specmode = = measurespec.unspecified) {return viewwidth; else {return viewwidth; } private int Measureheight (int widthmeasurespe

line.The following code is copied directly from the project on Git. The code is as follows Copy Code Package Com.example.shimmer; Import Android.content.Context;Import Android.graphics.Canvas;Import android.graphics.LinearGradient;Import Android.graphics.Matrix;Import Android.graphics.Paint;Import Android.graphics.Shader;Import Android.util.AttributeSet;Import Android.widget.TextView; public class Mytextview extends TextView { Private LinearGradient mlineargradient;P