├── .gitignore ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── buildware │ │ └── widget │ │ └── sample │ │ └── MainActivity.java │ └── res │ ├── layout │ ├── activity_main.xml │ └── content_main.xml │ ├── mipmap-hdpi │ └── ic_launcher.png │ ├── mipmap-mdpi │ └── ic_launcher.png │ ├── mipmap-xhdpi │ └── ic_launcher.png │ ├── mipmap-xxhdpi │ └── ic_launcher.png │ ├── mipmap-xxxhdpi │ └── ic_launcher.png │ └── values │ ├── dimens.xml │ ├── strings.xml │ └── styles.xml ├── art ├── 3-state checkboxes.png ├── logo.png └── screenshot1.png ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── library ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── topjohnwu │ │ └── widget │ │ ├── IndeterminateCheckBox.java │ │ └── IndeterminateSavedState.java │ └── res │ ├── anim │ ├── ic_checkbox_checked_animation_interpolator_0.xml │ ├── ic_checkbox_checked_animation_interpolator_1.xml │ ├── ic_checkbox_indeterminate_animation_interpolator_1.xml │ ├── ic_checkbox_indeterminate_to_checked_box_inner_merged_animation.xml │ ├── ic_checkbox_indeterminate_to_checked_icon_null_animation.xml │ ├── ic_checkbox_to_checked_box_inner_merged_animation.xml │ ├── ic_checkbox_to_checked_box_outer_merged_animation.xml │ ├── ic_checkbox_to_checked_icon_null_animation.xml │ ├── ic_checkbox_to_indeterminate_from_checked_box_inner_merged_animation.xml │ ├── ic_checkbox_to_indeterminate_from_checked_icon_null_animation.xml │ ├── ic_checkbox_to_indeterminate_from_unchecked_box_inner_merged_animation.xml │ ├── ic_checkbox_to_indeterminate_from_unchecked_box_outer_merged_animation.xml │ ├── ic_checkbox_to_indeterminate_from_unchecked_icon_null_animation.xml │ ├── ic_checkbox_to_unchecked_box_inner_merged_animation.xml │ ├── ic_checkbox_to_unchecked_check_path_merged_animation.xml │ ├── ic_checkbox_to_unchecked_from_indeterminate_box_inner_merged_animation.xml │ ├── ic_checkbox_to_unchecked_from_indeterminate_check_path_merged_animation.xml │ ├── ic_checkbox_to_unchecked_from_indeterminate_icon_null_animation.xml │ ├── ic_checkbox_to_unchecked_icon_null_animation.xml │ ├── ic_checkbox_unchecked_animation_interpolator_0.xml │ └── ic_checkbox_unchecked_animation_interpolator_1.xml │ ├── drawable │ ├── btn_checkmark.xml │ ├── ic_checkbox_checked.xml │ ├── ic_checkbox_checked_to_indeterminate_animation.xml │ ├── ic_checkbox_checked_to_unchecked_animation.xml │ ├── ic_checkbox_indeterminate.xml │ ├── ic_checkbox_indeterminate_to_checked_animation.xml │ ├── ic_checkbox_indeterminate_to_unchecked_animation.xml │ ├── ic_checkbox_unchecked.xml │ ├── ic_checkbox_unchecked_to_checked_animation.xml │ └── ic_checkbox_unchecked_to_indeterminate_animation.xml │ └── values │ └── attrs.xml └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # Created by https://www.gitignore.io 2 | 3 | ### Android ### 4 | 5 | # Files for the Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | 15 | # Gradle files 16 | .gradle/ 17 | build/ 18 | 19 | # Local configuration file (sdk path, etc) 20 | local.properties 21 | 22 | # Proguard folder generated by Eclipse 23 | proguard/ 24 | 25 | # Log Files 26 | *.log 27 | 28 | 29 | ### Intellij ### 30 | # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm 31 | 32 | *.iml 33 | 34 | ## 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You need to have this in your project's `build.gradle` file: 16 | 17 | ```Gradle 18 | allprojects { 19 | repositories { 20 | jcenter() 21 | maven { url "https://jitpack.io" } 22 | } 23 | } 24 | ``` 25 | 2. You need this in your app's module `build.gradle` file: 26 | ```Gradle 27 | dependencies { 28 | compile 'com.github.topjohnwu:indeterminate-checkbox:1.0.7' 29 | } 30 | ``` 31 | 32 | 3. The Support library's `MaterialComponents` theme or its variant must be set for your application or your activity in the manifest: 33 | ```Manifest 34 | 38 | ``` 39 | 40 | ## Usage 41 | 42 | ##### In XML layout 43 | Add this to your layout: 44 | ```XML 45 | 51 | 53 | ``` 54 | 55 | 56 | #### Listening for state changes 57 | 58 | Both changes of the 'checked' state and the 'indeterminate' state can be received in one listener. So, the `OnCheckedChangeListener` is not needed at all. The `OnStateChangedListener` is called just after the standard `OnCheckedChangeListener`. 59 | ```Java 60 | IndeterminateCheckBox indetermCheck; 61 | ... 62 | indetermCheck.setOnStateChangedListener(new OnStateChangedListener() { 63 | @Override 64 | public void onStateChangedListener(IndeterminateCheckBox check, @Nullable Boolean state) { 65 | if (state == null) { 66 | // The new state is 'indeterminate' 67 | } else if (state) { 68 | // The new state is 'checked' 69 | } else { 70 | // The new state is 'unchecked' 71 | } 72 | } 73 | } 74 | ``` 75 | 76 | #### State 77 | Note that when user clicks an checkbox in 'indeterminate' state it always becomes 'checked' no matter of its current 'checked' state. Its 'checked' state is not getting toggled, it becomes 'checked'. Clicking it again and it's becomes 'unchecked'. Then another click toggles it back to 'checked' state and so on. In other words user does not toggle all three states one after another. With normal operations (clicks, keypresses) it's not possible. This behaviour is normal and follows various UX guidelines. However switching back to 'indeterminate' state is possible programatically if you decide it is appropriate (see next). 78 | 79 | #### Controlling the state programmatically 80 | 81 | Switching to 'indeterminate' state at any time is possible with: 82 | ```Java 83 | indetermCheck.setIndeterminate(true); 84 | // or 85 | indetermCheck.setState(null); 86 | ``` 87 | 88 | Switching from 'indeterminate' state to 'determinate' state: 89 | ```Java 90 | indetermCheck.setChecked(true); // or false 91 | // or 92 | indetermCheck.setState(true); // or false 93 | ``` 94 | 95 | Checking the state 96 | ```Java 97 | indetermCheck.isIndeterminate(); 98 | // or 99 | indetermCheck.getState(); 100 | ``` 101 | 102 | ## Todo 103 | 104 | - `IndeterminateCheckedTextView` - would be valuable for using in dialogs 105 | - Write some tests 106 | 107 | ## License 108 | Apache License, Version 2.0 109 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion rootProject.ext.compileSdkVersion 5 | 6 | defaultConfig { 7 | applicationId "com.buildware.widget.sample" 8 | buildToolsVersion rootProject.ext.buildToolsVersion 9 | minSdkVersion rootProject.ext.minSdkVersion 10 | targetSdkVersion rootProject.ext.targetSdkVersion 11 | versionCode 1 12 | versionName "1.0" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | implementation fileTree(dir: 'libs', include: ['*.jar']) 24 | implementation project(':library') 25 | } 26 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /opt/android-sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /app/src/main/java/com/buildware/widget/sample/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.buildware.widget.sample; 2 | 3 | import android.os.Bundle; 4 | import android.view.View; 5 | import android.widget.CheckBox; 6 | 7 | import androidx.appcompat.app.AppCompatActivity; 8 | import androidx.appcompat.widget.AppCompatCheckBox; 9 | 10 | import com.topjohnwu.widget.IndeterminateCheckBox; 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 | final CheckBox checkBox = findViewById(R.id.checkBox); 20 | final AppCompatCheckBox appCompatCheckBox = findViewById(R.id.app_compat_checkbox); 21 | final IndeterminateCheckBox indetermCheckBox = findViewById(R.id.indeterm_checkbox); 22 | 23 | findViewById(R.id.btn_indeterminate).setOnClickListener(new View.OnClickListener() { 24 | @Override 25 | public void onClick(View v) { 26 | indetermCheckBox.setState(null); 27 | } 28 | }); 29 | 30 | findViewById(R.id.btn_checked).setOnClickListener(new View.OnClickListener() { 31 | @Override 32 | public void onClick(View v) { 33 | checkBox.setChecked(true); 34 | appCompatCheckBox.setChecked(true); 35 | indetermCheckBox.setChecked(true); 36 | } 37 | }); 38 | 39 | findViewById(R.id.btn_unchecked).setOnClickListener(new View.OnClickListener() { 40 | @Override 41 | public void onClick(View v) { 42 | checkBox.setChecked(false); 43 | appCompatCheckBox.setChecked(false); 44 | indetermCheckBox.setChecked(false); 45 | } 46 | }); 47 | 48 | findViewById(R.id.btn_enable).setOnClickListener(new View.OnClickListener() { 49 | @Override 50 | public void onClick(View v) { 51 | checkBox.setEnabled(true); 52 | appCompatCheckBox.setEnabled(true); 53 | indetermCheckBox.setEnabled(true); 54 | } 55 | }); 56 | 57 | findViewById(R.id.btn_disable).setOnClickListener(new View.OnClickListener() { 58 | @Override 59 | public void onClick(View v) { 60 | checkBox.setEnabled(false); 61 | appCompatCheckBox.setEnabled(false); 62 | indetermCheckBox.setEnabled(false); 63 | } 64 | }); 65 | } 66 | } 67 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /app/src/main/res/layout/content_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 10 | 11 | 16 | 17 | 21 | 22 |