com.android.tools.lint.checks

Class NegativeMarginDetector

java.lang.Object

com.android.tools.lint.detector.api.Detector

com.android.tools.lint.detector.api.ResourceXmlDetector

com.android.tools.lint.detector.api.LayoutDetector

com.android.tools.lint.checks.NegativeMarginDetector

All Implemented Interfaces:

com.android.tools.lint.detector.api.FileScanner, com.android.tools.lint.detector.api.XmlScanner, com.android.tools.lint.detector.api.XmlScannerConstants

public class NegativeMarginDetector
extends com.android.tools.lint.detector.api.LayoutDetector

Checks for negative margins in the following scenarios:

• In direct layout attribute usages, e.g. <Button android:layoutMargin="-5dp"
• In theme styles, e.g. <item name="android:layoutMargin">-5dp</item>
• In dimension usages, e.g. <Button android:layoutMargin="@dimen/foo" along with <dimen name="foo">-5dp</dimen>

Nested Class Summary

Nested classes/interfaces inherited from class com.android.tools.lint.detector.api.Detector

com.android.tools.lint.detector.api.Detector.BinaryResourceScanner, com.android.tools.lint.detector.api.Detector.ClassScanner, com.android.tools.lint.detector.api.Detector.GradleScanner, com.android.tools.lint.detector.api.Detector.OtherFileScanner, com.android.tools.lint.detector.api.Detector.ResourceFolderScanner, com.android.tools.lint.detector.api.Detector.UastScanner, com.android.tools.lint.detector.api.Detector.XmlScanner

Field Summary

Fields

Modifier and Type	Field and Description
static com.android.tools.lint.detector.api.Issue	ISSUE Negative margins

Fields inherited from interface com.android.tools.lint.detector.api.XmlScannerConstants

ALL

Constructor Summary

Constructors

Constructor and Description
NegativeMarginDetector() Constructs a new NegativeMarginDetector

Method Summary

Modifier and Type	Method and Description
boolean	appliesTo(com.android.resources.ResourceFolderType folderType)
java.util.Collection<java.lang.String>	getApplicableAttributes()
java.util.Collection<java.lang.String>	getApplicableElements()
void	visitAttribute(com.android.tools.lint.detector.api.XmlContext context, org.w3c.dom.Attr attribute)
void	visitElement(com.android.tools.lint.detector.api.XmlContext context, org.w3c.dom.Element element)

Methods inherited from class com.android.tools.lint.detector.api.ResourceXmlDetector

run

Methods inherited from class com.android.tools.lint.detector.api.Detector

afterCheckEachProject, afterCheckFile, afterCheckLibraryProject, afterCheckProject, afterCheckRootProject, analyzeCallGraph, applicableAnnotations, applicableSuperClasses, appliesTo, appliesToResourceRefs, beforeCheckEachProject, beforeCheckFile, beforeCheckLibraryProject, beforeCheckProject, beforeCheckRootProject, checkBinaryResource, checkCall, checkClass, checkClass, checkDslPropertyAssignment, checkFolder, checkInstruction, checkMethodCall, createPsiVisitor, createUastHandler, fix, getApplicableAsmNodeTypes, getApplicableCallNames, getApplicableCallOwners, getApplicableConstructorTypes, getApplicableFiles, getApplicableMethodNames, getApplicablePsiTypes, getApplicableReferenceNames, getApplicableUastTypes, getCustomVisitor, getSpeed, isApplicableAnnotationUsage, isCallGraphRequired, visitAnnotationUsage, visitAnnotationUsage, visitBuildScript, visitClass, visitClass, visitConstructor, visitConstructor, visitDocument, visitElementAfter, visitMethod, visitMethod, visitMethodCall, visitReference, visitReference, visitResourceReference, visitResourceReference

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.android.tools.lint.detector.api.XmlScanner

visitDocument, visitElementAfter

Methods inherited from interface com.android.tools.lint.detector.api.FileScanner

afterCheckFile, beforeCheckFile

Field Detail

ISSUE

public static final com.android.tools.lint.detector.api.Issue ISSUE

Negative margins

Constructor Detail

NegativeMarginDetector

public NegativeMarginDetector()

Constructs a new NegativeMarginDetector

Method Detail

appliesTo

public boolean appliesTo(@NonNull
                         com.android.resources.ResourceFolderType folderType)

Specified by:

appliesTo in interface com.android.tools.lint.detector.api.XmlScanner

Overrides:

appliesTo in class com.android.tools.lint.detector.api.LayoutDetector

getApplicableAttributes

public java.util.Collection<java.lang.String> getApplicableAttributes()

Specified by:

getApplicableAttributes in interface com.android.tools.lint.detector.api.XmlScanner

Overrides:

getApplicableAttributes in class com.android.tools.lint.detector.api.Detector

getApplicableElements

@Nullable
public java.util.Collection<java.lang.String> getApplicableElements()

Specified by:

getApplicableElements in interface com.android.tools.lint.detector.api.XmlScanner

Overrides:

getApplicableElements in class com.android.tools.lint.detector.api.Detector

visitAttribute

public void visitAttribute(@NonNull
                           com.android.tools.lint.detector.api.XmlContext context,
                           @NonNull
                           org.w3c.dom.Attr attribute)

Specified by:

visitAttribute in interface com.android.tools.lint.detector.api.XmlScanner

Overrides:

visitAttribute in class com.android.tools.lint.detector.api.Detector

visitElement

public void visitElement(@NonNull
                         com.android.tools.lint.detector.api.XmlContext context,
                         @NonNull
                         org.w3c.dom.Element element)

Specified by:

visitElement in interface com.android.tools.lint.detector.api.XmlScanner

Overrides:

visitElement in class com.android.tools.lint.detector.api.Detector