├── sample ├── .gitignore ├── src │ └── main │ │ ├── res │ │ ├── values │ │ │ ├── strings.xml │ │ │ ├── colors.xml │ │ │ └── styles.xml │ │ ├── mipmap-hdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── mipmap-anydpi-v26 │ │ │ ├── ic_launcher.xml │ │ │ └── ic_launcher_round.xml │ │ ├── layout │ │ │ └── activity_main.xml │ │ ├── drawable-v24 │ │ │ └── ic_launcher_foreground.xml │ │ └── drawable │ │ │ └── ic_launcher_background.xml │ │ ├── AndroidManifest.xml │ │ └── java │ │ └── nu │ │ └── aaro │ │ └── gustav │ │ └── sample │ │ └── MainActivity.java ├── proguard-rules.pro └── build.gradle ├── PassWordStrengthMeter ├── .gitignore ├── src │ └── main │ │ ├── res │ │ └── values │ │ │ ├── strings.xml │ │ │ └── attrs.xml │ │ ├── AndroidManifest.xml │ │ └── java │ │ └── nu │ │ └── aaro │ │ └── gustav │ │ └── passwordstrengthmeter │ │ ├── OnPasswordAccceptedListener.java │ │ ├── PasswordStrengthLevel.java │ │ ├── PasswordStrengthCalculator.java │ │ ├── StrengthIndicatorView.java │ │ └── PasswordStrengthMeter.java ├── proguard-rules.pro └── build.gradle ├── settings.gradle ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── .gitignore ├── gradle.properties ├── gradlew.bat ├── gradlew ├── README.md └── LICENSE /sample/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /PassWordStrengthMeter/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':passwordstrengthmeter', ':sample' 2 | -------------------------------------------------------------------------------- /sample/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | sample 3 | 4 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /PassWordStrengthMeter/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | PasswordStrengthMeter 3 | 4 | -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/workspace.xml 5 | /.idea/libraries 6 | .DS_Store 7 | /build 8 | /captures 9 | .externalNativeBuild 10 | -------------------------------------------------------------------------------- /PassWordStrengthMeter/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-hdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-hdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-mdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-mdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-xhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-xhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-xxhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-xxhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gustavaa/AndroidPasswordStrengthMeter/HEAD/sample/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /PassWordStrengthMeter/src/main/java/nu/aaro/gustav/passwordstrengthmeter/OnPasswordAccceptedListener.java: -------------------------------------------------------------------------------- 1 | package nu.aaro.gustav.passwordstrengthmeter; 2 | 3 | public interface OnPasswordAcceptedListener { 4 | public void onPasswordAccepted(); 5 | } 6 | -------------------------------------------------------------------------------- /sample/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #3F51B5 4 | #303F9F 5 | #FF4081 6 | 7 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Mon Feb 08 19:33:43 CET 2021 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip 7 | -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-anydpi-v26/ic_launcher.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /sample/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /PassWordStrengthMeter/src/main/res/values/attrs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /PassWordStrengthMeter/src/main/java/nu/aaro/gustav/passwordstrengthmeter/PasswordStrengthLevel.java: -------------------------------------------------------------------------------- 1 | package nu.aaro.gustav.passwordstrengthmeter; 2 | 3 | /** 4 | * Created by gustavaaro on 2018-10-04. 5 | */ 6 | 7 | public class PasswordStrengthLevel { 8 | 9 | private int indicatorColor; 10 | private String displayName; 11 | 12 | public PasswordStrengthLevel(String displayName, int indicatorColor){ 13 | this.indicatorColor = indicatorColor; 14 | this.displayName = displayName; 15 | } 16 | 17 | public String getDisplayName() { 18 | return displayName; 19 | } 20 | 21 | public int getIndicatorColor() { 22 | return indicatorColor; 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | org.gradle.jvmargs=-Xmx1536m 13 | 14 | # When configured, Gradle will run in incubating parallel mode. 15 | # This option should only be used with decoupled projects. More details, visit 16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 17 | # org.gradle.parallel=true 18 | -------------------------------------------------------------------------------- /sample/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /sample/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /PassWordStrengthMeter/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /sample/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 27 5 | defaultConfig { 6 | applicationId "nu.aaro.gustav.sample" 7 | minSdkVersion 17 8 | targetSdkVersion 27 9 | versionCode 1 10 | versionName "1.0" 11 | 12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 13 | 14 | } 15 | 16 | buildTypes { 17 | release { 18 | minifyEnabled false 19 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 20 | } 21 | } 22 | 23 | } 24 | 25 | dependencies { 26 | implementation fileTree(dir: 'libs', include: ['*.jar']) 27 | 28 | implementation 'com.android.support:appcompat-v7:27.1.1' 29 | implementation 'com.android.support.constraint:constraint-layout:1.1.3' 30 | testImplementation 'junit:junit:4.12' 31 | androidTestImplementation 'com.android.support.test:runner:1.0.2' 32 | androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2' 33 | implementation project(":passwordstrengthmeter") 34 | 35 | } 36 | -------------------------------------------------------------------------------- /PassWordStrengthMeter/src/main/java/nu/aaro/gustav/passwordstrengthmeter/PasswordStrengthCalculator.java: -------------------------------------------------------------------------------- 1 | package nu.aaro.gustav.passwordstrengthmeter; 2 | 3 | /** 4 | * Created by gustavaaro on 2018-10-04. 5 | */ 6 | 7 | 8 | public interface PasswordStrengthCalculator { 9 | 10 | /** 11 | * Calculates the current password strength. 12 | * @param password the password entered by the user 13 | * @return an int in the range [0-N], where n is the number of defined security levels. 14 | */ 15 | int calculatePasswordSecurityLevel(String password); 16 | 17 | 18 | /** 19 | * Defines the minimum length of a password 20 | * @return An integer value which represents the minimum length of a password. 21 | */ 22 | int getMinimumLength(); 23 | 24 | 25 | /** 26 | * Defines what minimum security level is required for an accepted password. 27 | * @param level the current security level of the password. 28 | */ 29 | 30 | boolean passwordAccepted(int level); 31 | 32 | /** 33 | * Is called when the password is accepted. 34 | * @param password the current password. 35 | */ 36 | void onPasswordAccepted(String password); 37 | 38 | } -------------------------------------------------------------------------------- /PassWordStrengthMeter/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.library' 2 | apply plugin: 'com.vanniktech.maven.publish' 3 | 4 | android { 5 | compileSdkVersion 28 6 | 7 | defaultConfig { 8 | minSdkVersion 17 9 | targetSdkVersion 28 10 | versionCode 1 11 | versionName "1.0" 12 | 13 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 14 | } 15 | 16 | buildTypes { 17 | release { 18 | minifyEnabled false 19 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 20 | } 21 | } 22 | 23 | } 24 | 25 | buildscript { 26 | repositories { 27 | jcenter() 28 | mavenCentral() 29 | } 30 | dependencies { 31 | classpath 'com.vanniktech:gradle-maven-publish-plugin:0.13.0' 32 | classpath 'org.jetbrains.dokka:dokka-gradle-plugin:1.4.10.2' 33 | } 34 | } 35 | 36 | dependencies { 37 | implementation fileTree(dir: 'libs', include: ['*.jar']) 38 | testImplementation 'junit:junit:4.12' 39 | androidTestImplementation 'com.android.support.test:runner:1.0.2' 40 | androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2' 41 | } 42 | -------------------------------------------------------------------------------- /sample/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 11 | 12 | 18 | 19 | 29 | 30 | 31 | 32 | -------------------------------------------------------------------------------- /sample/src/main/java/nu/aaro/gustav/sample/MainActivity.java: -------------------------------------------------------------------------------- 1 | package nu.aaro.gustav.sample; 2 | 3 | import android.support.v7.app.AppCompatActivity; 4 | import android.os.Bundle; 5 | import android.widget.EditText; 6 | import android.widget.LinearLayout; 7 | 8 | import nu.aaro.gustav.passwordstrengthmeter.PasswordStrengthLevel; 9 | import nu.aaro.gustav.passwordstrengthmeter.PasswordStrengthMeter; 10 | 11 | 12 | public class MainActivity extends AppCompatActivity { 13 | 14 | @Override 15 | protected void onCreate(Bundle savedInstanceState) { 16 | super.onCreate(savedInstanceState); 17 | setContentView(R.layout.activity_main); 18 | 19 | // Meter initialized from XML 20 | EditText passwordInput = findViewById(R.id.password_input); 21 | PasswordStrengthMeter meter1 = findViewById(R.id.passwordInputMeter); 22 | meter1.setEditText(passwordInput); 23 | 24 | 25 | // Meter initialized programmatically 26 | PasswordStrengthMeter meter = new PasswordStrengthMeter(this); 27 | meter.setEditText(passwordInput); 28 | meter.setStrengthLevels(new PasswordStrengthLevel[]{ 29 | new PasswordStrengthLevel("Level 0", android.R.color.white), 30 | new PasswordStrengthLevel("Level 1", android.R.color.holo_red_light), 31 | new PasswordStrengthLevel("Level 2", android.R.color.holo_orange_light), 32 | new PasswordStrengthLevel("Level 4", android.R.color.holo_green_light)}); 33 | meter.setAnimationDuration(300); 34 | meter.setShowStrengthIndicator(true); 35 | meter.setShowStrengthLabel(true); 36 | 37 | 38 | LinearLayout ll = findViewById(R.id.container); 39 | //ll.addView(meter); 40 | 41 | } 42 | } 43 | -------------------------------------------------------------------------------- /sample/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /PassWordStrengthMeter/src/main/java/nu/aaro/gustav/passwordstrengthmeter/StrengthIndicatorView.java: -------------------------------------------------------------------------------- 1 | package nu.aaro.gustav.passwordstrengthmeter; 2 | 3 | 4 | import android.animation.ArgbEvaluator; 5 | import android.animation.PropertyValuesHolder; 6 | import android.animation.ValueAnimator; 7 | import android.content.Context; 8 | import android.graphics.Canvas; 9 | import android.graphics.Paint; 10 | import android.util.AttributeSet; 11 | import android.view.View; 12 | import android.view.animation.AccelerateDecelerateInterpolator; 13 | 14 | /** 15 | * Created by gustavaaro on 2018-10-04. 16 | */ 17 | 18 | class StrengthIndicatorView extends View { 19 | private int height; 20 | private int currentLineWidth; 21 | private int correctLineWidth; 22 | private int currentColor; 23 | private int correctColor; 24 | private Paint linePaint = new Paint(); 25 | private Paint backgroundPaint = new Paint(); 26 | private int securityLevel; 27 | 28 | private static String TAG = "StrengthIndicatorView"; 29 | private boolean animate; 30 | private int animDuration; 31 | 32 | //Colors used for the different security levels 33 | private PasswordStrengthLevel[] levels; 34 | 35 | /** 36 | * Constructor 37 | * @param context the context of the component. 38 | */ 39 | 40 | public StrengthIndicatorView(Context context) { 41 | super(context); 42 | securityLevel = 0; 43 | } 44 | 45 | public void setPasswordStrengthLevels(PasswordStrengthLevel[] levels) { 46 | backgroundPaint.setColor(getResources().getColor(levels[0].getIndicatorColor())); 47 | currentColor = getResources().getColor(levels[0].getIndicatorColor()); 48 | this.levels = levels; 49 | invalidate(); 50 | refresh(); 51 | } 52 | 53 | /** 54 | * Default constructor 55 | * @param context the context of the component. 56 | * @param attrs AttributeSet received from the XML. 57 | */ 58 | public StrengthIndicatorView(Context context, AttributeSet attrs) { 59 | super(context, attrs); 60 | securityLevel = 0; 61 | } 62 | 63 | public void setAnimDuration(int animDuration) { 64 | this.animDuration = animDuration; 65 | } 66 | 67 | public void setAnimate(boolean animate) { 68 | this.animate = animate; 69 | } 70 | 71 | /** 72 | * Sets the view's height 73 | * @param height the height 74 | */ 75 | 76 | public void setHeight(int height){ 77 | this.height = height; 78 | } 79 | 80 | public void refresh(){ 81 | int duration = animate ? animDuration : 0; 82 | PropertyValuesHolder colorProp = PropertyValuesHolder.ofInt("color",currentColor,correctColor); 83 | PropertyValuesHolder widthProperty = PropertyValuesHolder.ofInt("width",currentLineWidth,correctLineWidth); 84 | 85 | ValueAnimator colorAnim = new ValueAnimator(); 86 | colorAnim.setDuration(duration); 87 | colorAnim.setValues(colorProp,widthProperty); 88 | colorAnim.setEvaluator(new ArgbEvaluator()); 89 | colorAnim.setInterpolator(new AccelerateDecelerateInterpolator() 90 | ); 91 | colorAnim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 92 | @Override 93 | public void onAnimationUpdate(ValueAnimator animation) { 94 | currentColor = (int) animation.getAnimatedValue("color"); 95 | currentLineWidth = (int) animation.getAnimatedValue("width"); 96 | invalidate(); 97 | } 98 | }); 99 | colorAnim.start(); 100 | } 101 | 102 | @Override 103 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 104 | setMeasuredDimension(widthMeasureSpec, height); 105 | } 106 | 107 | @Override 108 | protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 109 | super.onLayout(changed, left, top, right, bottom); 110 | if(changed) setSecurityLevel(securityLevel, true); 111 | } 112 | 113 | /** 114 | * Sets the current security level 115 | * @param level The calculated security level. 116 | */ 117 | 118 | public void setSecurityLevel(int level, boolean force){ 119 | if(force || this.securityLevel != level){ 120 | this.securityLevel = level; 121 | correctLineWidth = level+1 == levels.length ? getWidth() : (getMeasuredWidth()/(levels.length-1))*level; 122 | correctColor = getResources().getColor(levels[level].getIndicatorColor()); 123 | refresh(); 124 | } 125 | } 126 | 127 | @Override 128 | protected void onDraw(Canvas canvas) { 129 | super.onDraw(canvas); 130 | linePaint.setStrokeWidth(height); 131 | linePaint.setColor(currentColor); 132 | backgroundPaint.setStrokeWidth(height); 133 | canvas.drawLine(0, height/2, getWidth(), height/2, backgroundPaint); 134 | canvas.drawLine(0,height/2, currentLineWidth,height/2,linePaint); 135 | } 136 | 137 | } 138 | 139 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # Attempt to set APP_HOME 46 | # Resolve links: $0 may be a link 47 | PRG="$0" 48 | # Need this for relative symlinks. 49 | while [ -h "$PRG" ] ; do 50 | ls=`ls -ld "$PRG"` 51 | link=`expr "$ls" : '.*-> \(.*\)$'` 52 | if expr "$link" : '/.*' > /dev/null; then 53 | PRG="$link" 54 | else 55 | PRG=`dirname "$PRG"`"/$link" 56 | fi 57 | done 58 | SAVED="`pwd`" 59 | cd "`dirname \"$PRG\"`/" >/dev/null 60 | APP_HOME="`pwd -P`" 61 | cd "$SAVED" >/dev/null 62 | 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 64 | 65 | # Determine the Java command to use to start the JVM. 66 | if [ -n "$JAVA_HOME" ] ; then 67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 68 | # IBM's JDK on AIX uses strange locations for the executables 69 | JAVACMD="$JAVA_HOME/jre/sh/java" 70 | else 71 | JAVACMD="$JAVA_HOME/bin/java" 72 | fi 73 | if [ ! -x "$JAVACMD" ] ; then 74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 75 | 76 | Please set the JAVA_HOME variable in your environment to match the 77 | location of your Java installation." 78 | fi 79 | else 80 | JAVACMD="java" 81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 82 | 83 | Please set the JAVA_HOME variable in your environment to match the 84 | location of your Java installation." 85 | fi 86 | 87 | # Increase the maximum file descriptors if we can. 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 89 | MAX_FD_LIMIT=`ulimit -H -n` 90 | if [ $? -eq 0 ] ; then 91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 92 | MAX_FD="$MAX_FD_LIMIT" 93 | fi 94 | ulimit -n $MAX_FD 95 | if [ $? -ne 0 ] ; then 96 | warn "Could not set maximum file descriptor limit: $MAX_FD" 97 | fi 98 | else 99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 100 | fi 101 | fi 102 | 103 | # For Darwin, add options to specify how the application appears in the dock 104 | if $darwin; then 105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 106 | fi 107 | 108 | # For Cygwin, switch paths to Windows format before running java 109 | if $cygwin ; then 110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 112 | JAVACMD=`cygpath --unix "$JAVACMD"` 113 | 114 | # We build the pattern for arguments to be converted via cygpath 115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 116 | SEP="" 117 | for dir in $ROOTDIRSRAW ; do 118 | ROOTDIRS="$ROOTDIRS$SEP$dir" 119 | SEP="|" 120 | done 121 | OURCYGPATTERN="(^($ROOTDIRS))" 122 | # Add a user-defined pattern to the cygpath arguments 123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 125 | fi 126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 127 | i=0 128 | for arg in "$@" ; do 129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 131 | 132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 134 | else 135 | eval `echo args$i`="\"$arg\"" 136 | fi 137 | i=$((i+1)) 138 | done 139 | case $i in 140 | (0) set -- ;; 141 | (1) set -- "$args0" ;; 142 | (2) set -- "$args0" "$args1" ;; 143 | (3) set -- "$args0" "$args1" "$args2" ;; 144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 150 | esac 151 | fi 152 | 153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 154 | function splitJvmOpts() { 155 | JVM_OPTS=("$@") 156 | } 157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 159 | 160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 161 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Android Password Strength Meter 2 | 3 | Password strength meter is an easy-to-implement and flexible password strength indicator for Android. It is fully customizable and features an animated strength indicator and a matching label. 4 | 5 | 6 | 7 | ## Usage 8 | 9 | **Project level build.gradle** 10 | 11 | ~~~~gradle 12 | allprojects { 13 | repositories { 14 | mavenCentral() 15 | } 16 | } 17 | ~~~~ 18 | 19 | App level build.gradle 20 | 21 | ~~~~gradle 22 | dependencies { 23 | implementation 'nu.aaro.gustav:passwordstrengthmeter:0.4' 24 | } 25 | ~~~~ 26 | 27 | ## Examples 28 | 29 | ### XML 30 | 31 | PasswordStrengthMeter can be initialized by defining it in a layout XML file, for example: 32 | 33 | ~~~~xml 34 | 45 | ~~~~ 46 | 47 | Then all you have to do is to set it up like this in your activity of fragment 48 | 49 | ~~~~java 50 | PasswordStrengthMeter meter = findViewById(R.id.passwordInputMeter); 51 | meter.setEditText(passwordInputEditText); 52 | ~~~~ 53 | 54 | #### XML properties 55 | * **showStrengthBar:** Define whether or not the view should show the strength indicator bar. Default: true 56 | * **strengthBarHeight:** The height of the strength indicator bar. Default: 5dp 57 | * **animateChanges:** Define whether or not the bar should animate changes. Default: true 58 | * **animationDuration:** The duration of the password strength level change animation in ms. Default: 300ms. 59 | * **showStrengthLabel:** Define whether or not the view should show a label which show the current strength level display name. Default: true 60 | * **labelTextSize:** The label text size. Default: 12sp 61 | 62 | ### Java 63 | PasswordStrengthMeter can also be initalized programatically: 64 | 65 | ~~~~java 66 | PasswordStrengthMeter meter = new PasswordStrengthMeter(this); 67 | meter.setEditText(passwordInput); 68 | linearLayout.addView(meter); 69 | 70 | // And some customization can be done by: 71 | meter.setAnimationDuration(300); 72 | meter.setShowStrengthIndicator(true); 73 | meter.setShowStrengthLabel(true); 74 | ~~~~ 75 | 76 | ## Customization 77 | Apart from the basic cosmetic customization described above, PasswordStrengthMeter can also be customized in other aspects. 78 | 79 | ### Password strength calculation algorithm 80 | 81 | PasswordStrengthMeter implements a default algorithm for password strength estimation, although it is very basic and should not be considered the main contribution of this library. Instead, I recommend you to implement an algorithm that fits your system the best using the `PasswordStrengthCalculator`interface: 82 | 83 | ~~~~java 84 | meter.setPasswordStrengthCalculator(new PasswordStrengthCalculator() { 85 | @Override 86 | public int calculatePasswordSecurityLevel(String password) { 87 | // Do some calculation and return an int corresponding to the "points" or "level" the user password got 88 | return points; 89 | } 90 | 91 | @Override 92 | public int getMinimumLength() { 93 | // Define the minimum length of a password. Anything below this should always yield a score of 0 94 | return 8; 95 | } 96 | 97 | @Override 98 | public boolean passwordAccepted(int level) { 99 | // Define whether or not the level is an accepted level or not. 100 | return level > 3; 101 | } 102 | 103 | @Override 104 | public void onPasswordAccepted(String password) { 105 | // Called when the password entered meets your requirements of length and strength levels 106 | } 107 | }); 108 | ~~~~ 109 | 110 | ### Password strength levels 111 | 112 | PasswordStrengthMeter has 5 (or 6 if you count level 0) default password strength levels. These are simply `PasswordStrengthLevel` objects that defines a display name and a color associated with the level. These are stored in an array, where the index corresponds to the numerical "level" or "score" from the password strength calculation algorithm. 113 | 114 | The default levels are defined as follows: 115 | 116 | ~~~~java 117 | PasswordStrengthLevel[] strengthLevels = { 118 | new PasswordStrengthLevel("Too short", android.R.color.darker_gray), // level 0 119 | new PasswordStrengthLevel("Weak", android.R.color.holo_red_dark), // level 1 120 | new PasswordStrengthLevel("Fair", android.R.color.holo_orange_dark), // level 2 121 | new PasswordStrengthLevel("Good", android.R.color.holo_orange_light), // level 3 122 | new PasswordStrengthLevel("Strong", android.R.color.holo_blue_light), // level 4 123 | new PasswordStrengthLevel("Very strong", android.R.color.holo_green_dark)}; // level 5 124 | ~~~~ 125 | 126 | These levels can easily be changed by simply creating a similar array and call `setStrengthLevels`: 127 | 128 | ~~~~java 129 | PasswordStrengthMeter meter = new PasswordStrengthMeter(this); 130 | meter.setStrengthLevels(new PasswordStrengthLevel[]{ 131 | new PasswordStrengthLevel("Level 0", android.R.color.white), 132 | new PasswordStrengthLevel("Level 1", android.R.color.holo_red_light), 133 | new PasswordStrengthLevel("Level 2", android.R.color.holo_orange_light), 134 | new PasswordStrengthLevel("Level 3", android.R.color.holo_green_light)}); 135 | ~~~~ 136 | 137 | **NOTE** that for the best result, you should provide the meter with a number of levels that is adapted for the strength estimation algorithm used. I.e. if the algorithm yields a level between 0 and 5 (as the default implementation), you should provide the meter with a total of 6 strength levels. 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | -------------------------------------------------------------------------------- /sample/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /PassWordStrengthMeter/src/main/java/nu/aaro/gustav/passwordstrengthmeter/PasswordStrengthMeter.java: -------------------------------------------------------------------------------- 1 | package nu.aaro.gustav.passwordstrengthmeter; 2 | 3 | /** 4 | * Created by gustavaaro on 2018-10-04. 5 | */ 6 | 7 | import android.content.Context; 8 | import android.content.res.TypedArray; 9 | import android.text.Editable; 10 | import android.text.TextWatcher; 11 | import android.util.AttributeSet; 12 | import android.util.DisplayMetrics; 13 | import android.util.TypedValue; 14 | import android.view.Gravity; 15 | import android.view.View; 16 | import android.view.ViewGroup; 17 | import android.widget.EditText; 18 | import android.widget.LinearLayout; 19 | import android.widget.TextView; 20 | 21 | /** 22 | * Created by gustavaaro on 2016-11-09. 23 | */ 24 | 25 | public class PasswordStrengthMeter extends LinearLayout { 26 | 27 | // Meter preferences 28 | private boolean animateChanges = true; 29 | private boolean showStrengthLabel = true; 30 | private boolean showStrengthBar = true; 31 | private int animationDuration = 300; 32 | private float strengthBarHeight; 33 | private float textSize; 34 | 35 | private Context context; 36 | private TextView strengthLabel; 37 | private StrengthIndicatorView strengthIndicatorView; 38 | private TextWatcher textWatcher; 39 | private EditText input; 40 | 41 | public static final int ID_MODIFIER = 321; 42 | 43 | private static String TAG = "PasswordStrengthMeter"; 44 | private PasswordStrengthCalculator passwordStrengthCalculator; 45 | private OnPasswordAcceptedListener onPasswordAcceptedListener; 46 | 47 | // The default array with the defined strength display names and colors for the different levels in order 48 | private PasswordStrengthLevel[] strengthLevels = { 49 | new PasswordStrengthLevel("Too short", android.R.color.darker_gray), 50 | new PasswordStrengthLevel("Weak", android.R.color.holo_red_dark), 51 | new PasswordStrengthLevel("Fair", android.R.color.holo_orange_dark), 52 | new PasswordStrengthLevel("Good", android.R.color.holo_orange_light), 53 | new PasswordStrengthLevel("Strong", android.R.color.holo_blue_light), 54 | new PasswordStrengthLevel("Very strong", android.R.color.holo_green_dark)}; 55 | 56 | 57 | /** 58 | * Constructor used when created programmatically 59 | * 60 | * @param context the context of the component 61 | */ 62 | 63 | public PasswordStrengthMeter(Context context) { 64 | super(context); 65 | this.context = context; 66 | setId(View.generateViewId()); 67 | strengthBarHeight = convertDpToPx(5); 68 | textSize = convertDpToPx(14); 69 | initStrengthMeter(); 70 | } 71 | 72 | /** 73 | * Constructor used when created from xml. 74 | * 75 | * @param context the context of the component. 76 | * @param attrs the AttributeSet with properties from the xml. 77 | */ 78 | 79 | public PasswordStrengthMeter(Context context, AttributeSet attrs) { 80 | super(context, attrs); 81 | this.context = context; 82 | 83 | TypedArray a = context.getTheme().obtainStyledAttributes( 84 | attrs, 85 | R.styleable.PasswordStrengthMeter, 86 | 0, 0); 87 | 88 | try { 89 | showStrengthLabel = a.getBoolean(R.styleable.PasswordStrengthMeter_showStrengthLabel, true); 90 | showStrengthBar = a.getBoolean(R.styleable.PasswordStrengthMeter_showStrengthBar, true); 91 | animateChanges = a.getBoolean(R.styleable.PasswordStrengthMeter_animateChanges, true); 92 | animationDuration = a.getInt(R.styleable.PasswordStrengthMeter_animationDuration, animationDuration); 93 | strengthBarHeight = a.getDimension(R.styleable.PasswordStrengthMeter_strengthBarHeight, convertDpToPx(5)); 94 | textSize = a.getDimension(R.styleable.PasswordStrengthMeter_labelTextSize, convertDpToPx(14)); 95 | } finally { 96 | a.recycle(); 97 | } 98 | 99 | initStrengthMeter(); 100 | } 101 | 102 | @Override 103 | public void setOrientation(int orientation) { 104 | super.setOrientation(HORIZONTAL); 105 | } 106 | 107 | /** 108 | * Initializes the view by defining components and laying them out 109 | */ 110 | 111 | public void initStrengthMeter() { 112 | setOrientation(HORIZONTAL); 113 | setVerticalGravity(Gravity.CENTER_VERTICAL); 114 | this.setPasswordStrengthCalculator(defaultPassWordStrengthCalculator); 115 | 116 | if (showStrengthBar) { 117 | strengthIndicatorView = new StrengthIndicatorView(context); 118 | strengthIndicatorView.setPasswordStrengthLevels(strengthLevels); 119 | strengthIndicatorView.setAnimDuration(animationDuration); 120 | strengthIndicatorView.setAnimate(animateChanges); 121 | strengthIndicatorView.setHeight((int) strengthBarHeight); 122 | strengthIndicatorView.setId(View.generateViewId()); 123 | addView(strengthIndicatorView); 124 | } 125 | 126 | if (showStrengthLabel) { 127 | strengthLabel = new TextView(context); 128 | strengthLabel.setGravity(Gravity.END); 129 | strengthLabel.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize); 130 | addView(strengthLabel); 131 | strengthLabel.setMinWidth(getMaxWidth()); 132 | strengthLabel.setText(strengthLevels[0].getDisplayName()); 133 | strengthLabel.setTextColor(getResources().getColor(strengthLevels[0].getIndicatorColor())); 134 | strengthLabel.setId(View.generateViewId()); 135 | } 136 | setLayoutParams(); 137 | 138 | textWatcher = new TextWatcher() { 139 | @Override 140 | public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) { 141 | 142 | } 143 | 144 | @Override 145 | public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) { 146 | 147 | } 148 | 149 | @Override 150 | public void afterTextChanged(Editable editable) { 151 | refresh(); 152 | } 153 | }; 154 | } 155 | 156 | /** 157 | * Set animation duration for meter change animations 158 | * 159 | * @param animationDuration 160 | */ 161 | public void setAnimationDuration(int animationDuration) { 162 | this.animationDuration = animationDuration; 163 | strengthIndicatorView.setAnimDuration(animationDuration); 164 | } 165 | 166 | @Override 167 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 168 | setLayoutParams(); 169 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); 170 | } 171 | 172 | @Override 173 | protected void onLayout(boolean changed, int l, int t, int r, int b) { 174 | super.onLayout(changed, l, t, r, b); 175 | if (changed) setLayoutParams(); 176 | } 177 | 178 | 179 | private void refresh() { 180 | if (input != null) { 181 | int level = normalizeLevel(passwordStrengthCalculator.calculatePasswordSecurityLevel(input.getText().toString())); 182 | 183 | if (this.passwordStrengthCalculator.passwordAccepted(level)) { 184 | this.passwordStrengthCalculator.onPasswordAccepted(input.getText().toString()); 185 | if (this.onPasswordAcceptedListener != null) { 186 | onPasswordAcceptedListener.onPasswordAccepted(); 187 | } 188 | } 189 | 190 | if (showStrengthBar) { 191 | strengthIndicatorView.setSecurityLevel(normalizeLevel(level), false); 192 | } 193 | 194 | if (showStrengthLabel) { 195 | strengthLabel.setText(strengthLevels[level].getDisplayName()); 196 | strengthLabel.setTextColor(getResources().getColor(strengthLevels[level].getIndicatorColor())); 197 | } 198 | } 199 | } 200 | 201 | /** 202 | * Get the maximum width of all level display names 203 | * 204 | * @return the maximum width of the displaynames 205 | */ 206 | private int getMaxWidth() { 207 | int max = 0; 208 | strengthLabel.setMinWidth(0); 209 | for (PasswordStrengthLevel level : strengthLevels) { 210 | strengthLabel.setText(level.getDisplayName()); 211 | strengthLabel.measure(0, 0); 212 | max = strengthLabel.getMeasuredWidth() > max ? strengthLabel.getMeasuredWidth() : max; 213 | } 214 | return max; 215 | } 216 | 217 | 218 | /** 219 | * Safety methods that normalizes the calculated level to one that is defined. If the strength calculation 220 | * algorithm returns a number that correctly corresponds to the number of levels defined, this won't do anything. 221 | * 222 | * @param level the non normalized strength level 223 | * @return normalized strength level 224 | */ 225 | private int normalizeLevel(int level) { 226 | if (level < 0) { 227 | level = 0; 228 | } else if (level >= strengthLevels.length) { 229 | level = strengthLevels.length - 1; 230 | } 231 | return level; 232 | } 233 | 234 | /** 235 | * Calculates the width of the components 236 | */ 237 | private void setLayoutParams() { 238 | int labelWidth = 0; 239 | int marginEnd = 0; 240 | int marginStart = 0; 241 | if (showStrengthLabel) { 242 | strengthLabel.measure(0, 0); 243 | labelWidth = strengthLabel.getMeasuredWidth(); 244 | marginEnd = convertDpToPx(2); 245 | marginStart = convertDpToPx(10); 246 | LayoutParams labelparams = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); 247 | labelparams.setMarginEnd(marginEnd); 248 | labelparams.setMarginStart(marginStart); 249 | strengthLabel.setLayoutParams(labelparams); 250 | } 251 | 252 | if (showStrengthBar) { 253 | int indicatorWidth = getWidth() - labelWidth - marginEnd - marginStart; 254 | if (indicatorWidth < 0) indicatorWidth = 0; 255 | LayoutParams indicatorParams = new LayoutParams(indicatorWidth, ViewGroup.LayoutParams.WRAP_CONTENT); 256 | indicatorParams.setMargins(0, convertDpToPx(8), 0, convertDpToPx(8)); 257 | strengthIndicatorView.setLayoutParams(indicatorParams); 258 | } 259 | } 260 | 261 | /** 262 | * Sets the strength levels for the meter, defined by a color and a display name 263 | * 264 | * @param strengthLevels array of PasswordStrengthLevel 265 | */ 266 | public void setStrengthLevels(PasswordStrengthLevel[] strengthLevels) { 267 | this.strengthLevels = strengthLevels; 268 | strengthIndicatorView.setPasswordStrengthLevels(strengthLevels); 269 | strengthIndicatorView.invalidate(); 270 | strengthLabel.setMinWidth(getMaxWidth()); 271 | refresh(); 272 | invalidate(); 273 | } 274 | /** 275 | Sets a listener for when the password was accepted by the standard rules 276 | */ 277 | 278 | public void setOnPasswordAcceptedListener(OnPasswordAcceptedListener onPasswordAcceptedListener) { 279 | this.onPasswordAcceptedListener = onPasswordAcceptedListener; 280 | } 281 | 282 | /** 283 | * Sets whether or not the line indicator should be visible. 284 | * 285 | * @param showStrengthIndicator show strength indicator boolean. 286 | */ 287 | 288 | public void setShowStrengthIndicator(boolean showStrengthIndicator) { 289 | showStrengthBar = showStrengthIndicator; 290 | if (showStrengthIndicator) strengthIndicatorView.setVisibility(VISIBLE); 291 | else strengthIndicatorView.setVisibility(GONE); 292 | } 293 | 294 | 295 | public void setEditText(EditText passwordInput) { 296 | passwordInput.addTextChangedListener(textWatcher); 297 | this.input = passwordInput; 298 | } 299 | 300 | /** 301 | * Sets whether or not the text indicator should be visible. 302 | * 303 | * @param showStrengthLabel show text indicator boolean. 304 | */ 305 | 306 | public void setShowStrengthLabel(boolean showStrengthLabel) { 307 | this.showStrengthLabel = showStrengthLabel; 308 | if (showStrengthLabel) strengthLabel.setVisibility(VISIBLE); 309 | else strengthLabel.setVisibility(GONE); 310 | } 311 | 312 | 313 | /** 314 | * Sets the handler responsible for the strength-algorithm. The default value is 315 | * this class itself. 316 | * 317 | * @param passwordStrengthCalculator handler responsible for calculations and requirements. 318 | */ 319 | 320 | public void setPasswordStrengthCalculator(PasswordStrengthCalculator passwordStrengthCalculator) { 321 | this.passwordStrengthCalculator = passwordStrengthCalculator; 322 | } 323 | 324 | 325 | /** 326 | * Default algorithm for calculating password strength, providing 5 basic strength levels 327 | * NOTE: This is a very basic algorithm and you are strongly advised to implement one customized to your needs 328 | */ 329 | 330 | private PasswordStrengthCalculator defaultPassWordStrengthCalculator = new PasswordStrengthCalculator() { 331 | @Override 332 | public int calculatePasswordSecurityLevel(String password) { 333 | int level = 0; 334 | int minLength = getMinimumLength(); 335 | 336 | // Checks if password meets minimum length 337 | if (password.length() < minLength) { 338 | return 0; 339 | } else { 340 | ++level; 341 | } 342 | 343 | // Give level for extra long password 344 | if (password.length() >= (minLength * (3.0 / 2))) ++level; 345 | 346 | boolean hasUppercase = !password.equals(password.toLowerCase()); 347 | boolean hasLowercase = !password.equals(password.toUpperCase()); 348 | 349 | // Give level for password containing both upper and lower case letters 350 | if (hasLowercase && hasUppercase) ++level; 351 | 352 | // Give level for password containing digits 353 | boolean hasNumber = password.matches(".*\\d.*"); 354 | if (hasNumber) ++level; 355 | 356 | // Give level for password containing special characters 357 | boolean hasSpecial = password.matches(".*[!@#€£©§|≈$%^&*].*"); 358 | if (hasSpecial) ++level; 359 | 360 | return level; 361 | } 362 | 363 | @Override 364 | public int getMinimumLength() { 365 | return 8; 366 | } 367 | 368 | @Override 369 | public boolean passwordAccepted(int level) { 370 | return level > 0; 371 | } 372 | 373 | @Override 374 | public void onPasswordAccepted(String password) { 375 | 376 | } 377 | }; 378 | 379 | /** 380 | * Convinience method for calculating dp values to pixel values 381 | * 382 | * @param dp the value in dp 383 | * @return the value in px 384 | */ 385 | private int convertDpToPx(int dp) { 386 | DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics(); 387 | return Math.round(dp * (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT)); 388 | } 389 | 390 | 391 | } --------------------------------------------------------------------------------