Android XML使用
16lz
2021-01-23
1. XML资源文件中可以定义普通字符串，引用字符串，HTML 字符串和可替换字符串。
定义字符串资源的XML语法
<?xml version="1.0" encoding="utf-8"?> simple string "quoted 'xyz' string \"double quoted\" hello %2$s Java format string. %1$s again Hello Slanted Android,you are bold 在java代码中使用字符串资源
String simpleString=activity.getString(R.string.simple_string);String quotedString=activity.getString(R.string.quoted_string);String doubleQuotedString=activity.getString(R.string.double_quoted_string);String javaFormatString=activity.getString(R.string.java_format_string);String substitutedString=String.format(javaFormatString, "Hello","Android");String htmlTaggedString=activity.getString(R.string.tagged_string);Spanned textSpan=android.text.Html.fromHtml(htmlTaggedString);textView.setText(textSpan);2.定义颜色资源的XML
示例：
#foo #ooooff #fofo #ffffff00 int mainBackgroundColor=activity.getResources.getColor(R.color.main_back_ground_color);参阅了颜色的代码
统计下android:的类型，方便下次查阅
android:layout_width=""
android:layout_height=""
android:layout_weight=""
android:layout_gravity=""
android:layout_margin=""
android:layout_marginLeft=""
android:layout_marginTop=""
android:layout_marginRight=""
android:layout_marginBottom=""
android:layout_marginStart=""
android:layout_marginEnd=""
android:lineSpacingMultiplier=""
android:fontFamily=""
android:textColorLink=""
android:cursorVisible=""
android:maxLines=""
android:maxHeight=""
android:lines=""
android:height=""
android:minLines=""
android:minHeight=""
android:maxEms=""
android:maxWidth=""
android:ems=""
android:width=""
android:minEms=""
android:minWidth=""
android:gravity=""
android:scrollHorizontally=""
android:password=""
android:singleLine=""
android:enabled=""
android:selectAllOnFocus=""
android:includeFontPadding=""
android:maxLength=""
android:shadowColor=""
android:shadowDx=""
android:shadowDy=""
android:shadowRadius=""
android:autoLink=""
android:linksClickable=""
android:numeric=""
android:digits=""
android:phoneNumber=""
android:inputMethod=""
android:capitalize
android:autoText
android:editable
android:freezesText
android:ellipsize
android:drawableTop
android:drawableBottom
android:drawableRight
android:drawableStart
android:drawableEnd
android:drawablePadding
android:lineSpacingExtra
android:lineSpacingMultiplier
android:marqueeRepeatlimit
android:inputType
android:imeOptions
android:privateImeOptions
android:imeActionLabel
android:imeActionId
android:editorExtras
android:textSelectHandleLeft
android:textSelectHandleRight
android:textSelectHandle
android:textEditPasteWindowLayout
android:textEditNoPasteWindowLayout
android:textEditSuggestionItemLayout
android:textCursorDrawable
android:textIsSelectable
android:textAllCaps
android:id
android:tag
android:scrollX
android:scrollY
android:background
android:padding
android:paddingLeft
android:paddingTop
android:paddingRight
android:paddingBottom
android:paddingStart
android:paddingEnd
android:focusableInTouchMode
android:visibility
android:fitsSystemWindows
android:scrollbarStyle
android:isScrollContainer
android:fadeScrollbars
android:scrollbarFadeDuration
android:scrollbarDefaultDelayBeforeFade
android:scrollbarSize
android:scrollbarThumbHorizontal
android:scrollbarThumbVertical
android:scrollbarThumbVertical
android:scrollbarTrackHorizontal
android:scrollbarTrackVertical
android:scrollbarAlwaysDrawHorizontalTrack
android:scrollbarAlwaysDrawVerticalTrack
android:fadingEdge
android:requiresFadingEdge
android:fadingEdgeLength
android:nextFocusLeft
android:nextFocusRight
android:nextFocusUp
android:nextFocusDown
android:newxtFocusForward
android:clickable
android:longClickable
android:saveEnabled
android:filterTouchesWhenObscured
android:drawingCacheQuality
android:keepScreenOn
android:duplicateParentState
android:minHeight
android:minWidth
android:soundEffectsEnable
android:hapticFeedbackEnabled
android:contentDescription
android:onClick
android:overScrollMode
android:alpha
android:translationX
android:translationY
android:transformPivotX
android:transformPivotY
android:rotation
android:rotationX
android:rotationY
android:scaleX
android:scaleY
android:verticalScrollbarPosition
android:layerType
android:layoutDirection
android:textDirection
android:textAlignment
android:importantForAccessibility
android:accessibilityLiveRegion
android:lableFor
android:bufferType
android:text
android:hint
android:textColor
android:textColorHighlight
android:textColorHint
android:textAppearance
android:textSize
android:textScaleX
android:typeface/>
3.定义尺寸XML
1px >5dp 100sp in：英寸
mm：毫米
pt：磅
dp：与密度无关的像素，基于160dpi（每英寸的像素数）屏幕（尺寸适应屏幕密度）
sp：与比例无关的像素（这种尺寸支持用户调整大小，适合在字体中使用）
float dimen=activity.getResources().getDimension(R.dimen.mysize_in_pixels);4.图像资源
在xml中布局
BitmapDrawable d=activity.getResources().getDrawable(R.drawable.sample_image);button.setBackgroundDrawable(d);button.setBackgroundResource(R.drawable.sample_image);5.获取XML
Resources res=activity.getResources();XmlResourceParser xpp=res.getXml(R.xml.test);6.使用原始资源
String getStringFromRawFile(Activity activity)throws IOException{Resources r=activity.getResources();InputStream is=r.openRawResourceFd(R.raw.test);String myText=convertStreamToString(is);is.close();return myText;}String convertStreamToString(InputStream is)throws IOException{ByteArrayOutputStream baos=new ByteArrayOutputStream();int i=is.read();while(i!=-1){baos.write(i);i=is.read();}return baos.toString();}assets和/res同样级别，未包含在/res子目录中。/assets中的文件不会在R.java中生成ID，必须指定以/assets开头的文件路径才能读取，使用AssetManager来访问
String getStringFromAssetFile(Activity activity){AssetManager am=activity.getAssets();InputStream is=am.open("test.txt");String s=convertStreamToString(is);is.close();return s;}更多相关文章
- Android – 自定义Loading圆点
- android定义圆形按钮Shape，选中改变颜色
- 获取资源的id
- Android Studio动态自定义编译输出的apk文件名
- Android 自定义RadioButton或CheckBox选择样式
- android调用camera实现自定义照相
- android 圆形头像—— android开源系列：CircleImageView自定义圆