├── app ├── .gitignore ├── src │ ├── main │ │ ├── res │ │ │ ├── values │ │ │ │ ├── strings.xml │ │ │ │ ├── colors.xml │ │ │ │ ├── dimens.xml │ │ │ │ └── styles.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-w820dp │ │ │ │ └── dimens.xml │ │ │ └── layout │ │ │ │ └── activity_main.xml │ │ ├── AndroidManifest.xml │ │ └── java │ │ │ └── com │ │ │ └── kanade │ │ │ └── treeview │ │ │ ├── User.java │ │ │ └── MainActivity.java │ ├── test │ │ └── java │ │ │ └── com │ │ │ └── kanade │ │ │ └── treeview │ │ │ └── ExampleUnitTest.java │ └── androidTest │ │ └── java │ │ └── com │ │ └── kanade │ │ └── treeview │ │ └── ExampleInstrumentedTest.java ├── proguard-rules.pro └── build.gradle ├── treeadapter ├── .gitignore ├── src │ ├── main │ │ ├── res │ │ │ ├── drawable-hdpi │ │ │ │ ├── ic_detail.png │ │ │ │ └── ic_node_toggle.png │ │ │ ├── drawable-mdpi │ │ │ │ ├── ic_detail.png │ │ │ │ └── ic_node_toggle.png │ │ │ ├── drawable-xhdpi │ │ │ │ ├── ic_detail.png │ │ │ │ └── ic_node_toggle.png │ │ │ ├── drawable-xxhdpi │ │ │ │ ├── ic_detail.png │ │ │ │ └── ic_node_toggle.png │ │ │ ├── drawable │ │ │ │ └── touch_bg.xml │ │ │ ├── drawable-v21 │ │ │ │ └── touch_bg.xml │ │ │ └── layout │ │ │ │ └── rv_item_tree.xml │ │ ├── AndroidManifest.xml │ │ └── java │ │ │ └── com │ │ │ └── kanade │ │ │ └── treeadapter │ │ │ ├── TreeItemClickListener.java │ │ │ ├── RvTree.java │ │ │ ├── TreeHelper.java │ │ │ ├── Node.java │ │ │ └── TreeAdapter.java │ ├── test │ │ └── java │ │ │ └── com │ │ │ └── kanade │ │ │ └── treeadapter │ │ │ └── ExampleUnitTest.java │ └── androidTest │ │ └── java │ │ └── com │ │ └── kanade │ │ └── treeadapter │ │ └── ExampleInstrumentedTest.java ├── proguard-rules.pro └── build.gradle ├── settings.gradle ├── treeviewGif.gif ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── README.md ├── gradlew.bat ├── gradlew └── LICENSE.txt /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /treeadapter/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app', ':treeadapter' 2 | -------------------------------------------------------------------------------- /treeviewGif.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/treeviewGif.gif -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | TreeView 3 | 4 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable-hdpi/ic_detail.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/treeadapter/src/main/res/drawable-hdpi/ic_detail.png -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable-mdpi/ic_detail.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/treeadapter/src/main/res/drawable-mdpi/ic_detail.png -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable-xhdpi/ic_detail.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/treeadapter/src/main/res/drawable-xhdpi/ic_detail.png -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable-xxhdpi/ic_detail.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/treeadapter/src/main/res/drawable-xxhdpi/ic_detail.png -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable-hdpi/ic_node_toggle.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/treeadapter/src/main/res/drawable-hdpi/ic_node_toggle.png -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable-mdpi/ic_node_toggle.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/treeadapter/src/main/res/drawable-mdpi/ic_node_toggle.png -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable-xhdpi/ic_node_toggle.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/treeadapter/src/main/res/drawable-xhdpi/ic_node_toggle.png -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable-xxhdpi/ic_node_toggle.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pye52/TreeView/HEAD/treeadapter/src/main/res/drawable-xxhdpi/ic_node_toggle.png -------------------------------------------------------------------------------- /treeadapter/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | -------------------------------------------------------------------------------- /treeadapter/src/main/java/com/kanade/treeadapter/TreeItemClickListener.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeadapter; 2 | 3 | public interface TreeItemClickListener { 4 | void OnClick(Node node); 5 | } 6 | -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #3F51B5 4 | #303F9F 5 | #FF4081 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16dp 4 | 16dp 5 | 6 | -------------------------------------------------------------------------------- /treeadapter/src/main/java/com/kanade/treeadapter/RvTree.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeadapter; 2 | 3 | public interface RvTree { 4 | long getNid(); 5 | 6 | long getPid(); 7 | 8 | String getTitle(); 9 | 10 | int getImageResId(); 11 | } 12 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Tue Aug 08 19:35:37 CST 2017 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-3.3-all.zip 7 | -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable/touch_bg.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values-w820dp/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 64dp 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /treeadapter/src/main/res/drawable-v21/touch_bg.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /app/src/test/java/com/kanade/treeview/ExampleUnitTest.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeview; 2 | 3 | import org.junit.Test; 4 | 5 | import static org.junit.Assert.*; 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * @see Testing documentation 11 | */ 12 | public class ExampleUnitTest { 13 | @Test 14 | public void addition_isCorrect() throws Exception { 15 | assertEquals(4, 2 + 2); 16 | } 17 | } -------------------------------------------------------------------------------- /treeadapter/src/test/java/com/kanade/treeadapter/ExampleUnitTest.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeadapter; 2 | 3 | import org.junit.Test; 4 | 5 | import static org.junit.Assert.*; 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * @see Testing documentation 11 | */ 12 | public class ExampleUnitTest { 13 | @Test 14 | public void addition_isCorrect() throws Exception { 15 | assertEquals(4, 2 + 2); 16 | } 17 | } -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /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 C:\Users\kanade\AppData\Local\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 | -------------------------------------------------------------------------------- /treeadapter/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 C:\Users\kanade\AppData\Local\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/androidTest/java/com/kanade/treeview/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeview; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumentation test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.kanade.treeview", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /treeadapter/src/androidTest/java/com/kanade/treeadapter/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeadapter; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumentation test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.kanade.treeadapter", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /treeadapter/src/main/res/layout/rv_item_tree.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 13 | 14 | 19 | 20 | 26 | -------------------------------------------------------------------------------- /treeadapter/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.library' 2 | 3 | android { 4 | compileSdkVersion 26 5 | buildToolsVersion "26.0.2" 6 | 7 | defaultConfig { 8 | minSdkVersion 16 9 | targetSdkVersion 26 10 | versionCode 1 11 | versionName "0.2.3" 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 | dependencies { 25 | compile fileTree(include: ['*.jar'], dir: 'libs') 26 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 27 | exclude group: 'com.android.support', module: 'support-annotations' 28 | }) 29 | testCompile 'junit:junit:4.12' 30 | compile 'com.android.support:appcompat-v7:26.1.0' 31 | compile 'com.android.support:recyclerview-v7:26.1.0' 32 | } 33 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 26 5 | buildToolsVersion "26.0.2" 6 | defaultConfig { 7 | applicationId "com.kanade.treeview" 8 | minSdkVersion 16 9 | targetSdkVersion 26 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | compile project(':treeadapter') 24 | compile fileTree(include: ['*.jar'], dir: 'libs') 25 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 26 | exclude group: 'com.android.support', module: 'support-annotations' 27 | }) 28 | compile 'com.android.support:appcompat-v7:26.1.0' 29 | testCompile 'junit:junit:4.12' 30 | compile 'com.google.code.gson:gson:2.8.2' 31 | } 32 | -------------------------------------------------------------------------------- /app/src/main/java/com/kanade/treeview/User.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeview; 2 | 3 | import com.kanade.treeadapter.RvTree; 4 | 5 | public class User implements RvTree { 6 | private long id; 7 | private long pid; 8 | private String title; 9 | private int resId; 10 | 11 | public User(){} 12 | 13 | public User(long id, long pid, String title) { 14 | this.id = id; 15 | this.pid = pid; 16 | this.title = title; 17 | } 18 | 19 | @Override 20 | public long getNid() { 21 | return id; 22 | } 23 | 24 | public void setId(long id) { 25 | this.id = id; 26 | } 27 | 28 | @Override 29 | public long getPid() { 30 | return pid; 31 | } 32 | 33 | public void setPid(long pid) { 34 | this.pid = pid; 35 | } 36 | 37 | @Override 38 | public String getTitle() { 39 | return title; 40 | } 41 | 42 | public void setTitle(String title) { 43 | this.title = title; 44 | } 45 | 46 | public int getResId() { 47 | return resId; 48 | } 49 | 50 | public void setResId(int resId) { 51 | this.resId = resId; 52 | } 53 | 54 | @Override 55 | public int getImageResId() { 56 | return R.drawable.ic_detail; 57 | } 58 | } -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # TreeView 2 | RecyclerView用多层级TreeView，如果层级比较少推荐使用[Brvah](https://github.com/CymChad/BaseRecyclerViewAdapterHelper/wiki/%E5%88%86%E7%BB%84%E7%9A%84%E4%BC%B8%E7%BC%A9%E6%A0%8F)。直接上图 3 | 4 | ![image](https://github.com/pye52/TreeView/blob/master/treeviewGif.gif) 5 | 6 | 引入： 7 | 8 | ```groovy 9 | allprojects { 10 | repositories { 11 | ... 12 | maven { url 'https://jitpack.io' } 13 | } 14 | } 15 | 16 | dependencies { 17 | compile 'com.github.pye52:TreeView:0.2.3' 18 | } 19 | ``` 20 | 21 | Json例子结构 22 | 23 | ```json 24 | [ 25 | { 26 | "id": 1, 27 | "title": "A1", 28 | "pid": 0 29 | }, 30 | { 31 | "id": 2, 32 | "title": "B1", 33 | "pid": 1 34 | }, 35 | { 36 | "id": 3, 37 | "title": "C1", 38 | "pid": 2 39 | }, 40 | { 41 | "id": 4, 42 | "title": "C2", 43 | "pid": 2 44 | }, 45 | { 46 | "id": 5, 47 | "title": "C3", 48 | "pid": 2 49 | }, 50 | { 51 | "id": 6, 52 | "title": "B2", 53 | "pid": 1 54 | }, 55 | { 56 | "id": 7, 57 | "title": "C4", 58 | "pid": 6 59 | }, 60 | { 61 | "id": 8, 62 | "title": "C5", 63 | "pid": 6 64 | }, 65 | { 66 | "id": 9, 67 | "title": "D1", 68 | "pid": 5 69 | }, 70 | { 71 | "id": 10, 72 | "title": "E1", 73 | "pid": 9 74 | } 75 | ] 76 | ``` 77 | 78 | 使用： 79 | 80 | ```java 81 | public class User implements RvTree{ 82 | ... 83 | } 84 | 85 | Type type = new TypeToken>(){}.getType(); 86 | List list = new Gson().fromJson(testStr, type); 87 | // TreeAdapter adapter = new TreeAdapter<>(this, list); 88 | TreeAdapter adapter = new TreeAdapter<>(this); 89 | // 若不在初始化时指定数据，则需要手动调用notifyDataSetChanged来刷新列表 90 | adapter.setNodes(list); 91 | adapter.notifyDataSetChanged(); 92 | 93 | recyclerview.setAdapter(adapter); 94 | 95 | final List C1Childs = new ArrayList<>(); 96 | C1Childs.add(new User(11, 3, "C11")); 97 | C1Childs.add(new User(12, 3, "C12")); 98 | C1Childs.add(new User(13, 3, "C13")); 99 | adapter.setListener(new TreeItemClickListener() { 100 | @Override 101 | public void OnClick(Node node) { 102 | if (node.getId() == 3) { 103 | // 向id为3的节点下面添加数据并展开 104 | adapter.addChildrenById(3, C1Childs); 105 | } 106 | Toast.makeText(MainActivity.this, node.getName(), Toast.LENGTH_SHORT).show(); 107 | } 108 | }); 109 | ``` 110 | 111 | -------------------------------------------------------------------------------- /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 | -------------------------------------------------------------------------------- /treeadapter/src/main/java/com/kanade/treeadapter/TreeHelper.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeadapter; 2 | 3 | import java.util.ArrayList; 4 | import java.util.List; 5 | 6 | /** 7 | * 树状列表的工具类 8 | * Created by kanade on 2016/11/15. 9 | */ 10 | 11 | public class TreeHelper { 12 | /** 13 | * 传入要显示的数据，转化为排序后的Node数组 14 | * @param data 用户数据，数据model需要继承{@link RvTree} 15 | * @param defaultExpandLevel 默认展开层级 16 | * @return node数组 17 | */ 18 | public static List> getSortedNode(List data, int defaultExpandLevel) { 19 | List> result = new ArrayList<>(); 20 | // 将用户数据转化为List以及设置Node间关系(父子关系) 21 | List> nodes = convertData2Node(data); 22 | // 拿到根节点 23 | List> rootNodes = getRootNodes(nodes); 24 | 25 | // 排序 26 | for (Node node : rootNodes) { 27 | addNode(result, node, defaultExpandLevel, 1); 28 | } 29 | return result; 30 | } 31 | 32 | /** 33 | * 过滤出所有可见的Node 34 | */ 35 | public static List> filterVisibleNode(List> nodes) { 36 | List> result = new ArrayList<>(); 37 | 38 | for (Node node : nodes) { 39 | // 如果为根节点，或者上层目录为展开状态 40 | if (node.isRoot() || node.isParentExpand()) { 41 | result.add(node); 42 | } 43 | } 44 | return result; 45 | } 46 | 47 | private static List> convertData2Node(List data) { 48 | List> list = new ArrayList<>(); 49 | for (T item : data) { 50 | Node node = new Node<>(); 51 | node.setId(item.getNid()); 52 | node.setpId(item.getPid()); 53 | node.setName(item.getTitle()); 54 | node.setResId(item.getImageResId()); 55 | node.setItem(item); 56 | list.add(node); 57 | } 58 | linkNodes(list); 59 | return list; 60 | } 61 | 62 | /** 63 | * 将子节点挂到相应的父节点之下 64 | */ 65 | private static void linkNodes(List> list) { 66 | for (int i = 0; i < list.size(); i++) { 67 | Node n = list.get(i); 68 | for (int j = i + 1; j < list.size(); j++) { 69 | Node m = list.get(j); 70 | 71 | if (n.getpId() == m.getId()) { 72 | m.getChildren().add(n); 73 | n.setParent(m); 74 | continue; 75 | } 76 | 77 | if (m.getpId() == n.getId()) { 78 | n.getChildren().add(m); 79 | m.setParent(n); 80 | } 81 | } 82 | } 83 | } 84 | 85 | // 获取根节点 86 | private static List> getRootNodes(List> nodes) { 87 | List> root = new ArrayList<>(); 88 | for (Node node : nodes) { 89 | if (node.isRoot()) { 90 | root.add(node); 91 | } 92 | } 93 | return root; 94 | } 95 | 96 | /** 97 | * 添加某节点以下的所有子节点 98 | */ 99 | private static void addNode(List> nodes, Node node, int defaultExpandLeval, int currentLevel) { 100 | nodes.add(node); 101 | if (defaultExpandLeval == currentLevel) { 102 | node.setExpand(true); 103 | } 104 | 105 | if (node.isLeaf()) { 106 | return; 107 | } 108 | 109 | for (int i = 0; i < node.getChildren().size(); i++) { 110 | addNode(nodes, node.getChildren().get(i), defaultExpandLeval, currentLevel + 1); 111 | } 112 | } 113 | } 114 | -------------------------------------------------------------------------------- /app/src/main/java/com/kanade/treeview/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeview; 2 | 3 | import android.support.v7.app.AppCompatActivity; 4 | import android.os.Bundle; 5 | import android.support.v7.widget.LinearLayoutManager; 6 | import android.support.v7.widget.RecyclerView; 7 | import android.widget.Toast; 8 | 9 | import com.google.gson.Gson; 10 | import com.google.gson.reflect.TypeToken; 11 | import com.kanade.treeadapter.Node; 12 | import com.kanade.treeadapter.TreeAdapter; 13 | import com.kanade.treeadapter.TreeItemClickListener; 14 | 15 | import java.lang.reflect.Type; 16 | import java.util.ArrayList; 17 | import java.util.List; 18 | 19 | import static android.R.attr.type; 20 | import static android.R.id.list; 21 | 22 | public class MainActivity extends AppCompatActivity { 23 | private List list; 24 | private RecyclerView rv; 25 | @Override 26 | protected void onCreate(Bundle savedInstanceState) { 27 | super.onCreate(savedInstanceState); 28 | setContentView(R.layout.activity_main); 29 | 30 | String testStr = "[\n" + 31 | " {\n" + 32 | " \"id\": 1,\n" + 33 | " \"title\": \"A1\",\n" + 34 | " \"pid\": 0\n" + 35 | " },\n" + 36 | " {\n" + 37 | " \"id\": 2,\n" + 38 | " \"title\": \"B1\",\n" + 39 | " \"pid\": 1\n" + 40 | " },\n" + 41 | " {\n" + 42 | " \"id\": 3,\n" + 43 | " \"title\": \"C1\",\n" + 44 | " \"pid\": 2\n" + 45 | " },\n" + 46 | " {\n" + 47 | " \"id\": 4,\n" + 48 | " \"title\": \"C2\",\n" + 49 | " \"pid\": 2\n" + 50 | " },\n" + 51 | " {\n" + 52 | " \"id\": 5,\n" + 53 | " \"title\": \"C3\",\n" + 54 | " \"pid\": 2\n" + 55 | " },\n" + 56 | " {\n" + 57 | " \"id\": 6,\n" + 58 | " \"title\": \"B2\",\n" + 59 | " \"pid\": 1\n" + 60 | " },\n" + 61 | " {\n" + 62 | " \"id\": 7,\n" + 63 | " \"title\": \"C4\",\n" + 64 | " \"pid\": 6\n" + 65 | " },\n" + 66 | " {\n" + 67 | " \"id\": 8,\n" + 68 | " \"title\": \"C5\",\n" + 69 | " \"pid\": 6\n" + 70 | " },\n" + 71 | " {\n" + 72 | " \"id\": 9,\n" + 73 | " \"title\": \"D1\",\n" + 74 | " \"pid\": 5\n" + 75 | " },\n" + 76 | " {\n" + 77 | " \"id\": 10,\n" + 78 | " \"title\": \"E1\",\n" + 79 | " \"pid\": 9\n" + 80 | " }\n" + 81 | "]"; 82 | 83 | Type type = new TypeToken>(){}.getType(); 84 | list = new Gson().fromJson(testStr, type); 85 | rv = findViewById(R.id.rv); 86 | rv.setLayoutManager(new LinearLayoutManager(this)); 87 | final TreeAdapter adapter = new TreeAdapter<>(this); 88 | 89 | final List childs = new ArrayList<>(); 90 | childs.add(new User(11, 3, "C11")); 91 | childs.add(new User(12, 3, "C12")); 92 | childs.add(new User(13, 3, "C13")); 93 | 94 | adapter.setNodes(list); 95 | adapter.setListener(new TreeItemClickListener() { 96 | @Override 97 | public void OnClick(Node node) { 98 | if (node.getId() == 3) { 99 | adapter.addChildrenById(3, childs); 100 | } 101 | Toast.makeText(MainActivity.this, node.getName(), Toast.LENGTH_SHORT).show(); 102 | } 103 | }); 104 | rv.setAdapter(adapter); 105 | } 106 | } 107 | -------------------------------------------------------------------------------- /treeadapter/src/main/java/com/kanade/treeadapter/Node.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeadapter; 2 | 3 | import java.util.ArrayList; 4 | import java.util.List; 5 | 6 | public class Node { 7 | 8 | private long id; 9 | /** 根节点pId为0 */ 10 | private long pId = 0; 11 | 12 | private String name; 13 | 14 | private T item; 15 | 16 | /** 是否展开 */ 17 | private boolean isExpand = false; 18 | 19 | private int icon; 20 | 21 | /** 下一级的子Node */ 22 | private List> children = new ArrayList<>(); 23 | 24 | /** 父Node */ 25 | private Node parent; 26 | 27 | private int resId; 28 | 29 | public int getIcon() { 30 | return icon; 31 | } 32 | 33 | public void setIcon(int icon) { 34 | this.icon = icon; 35 | } 36 | 37 | public long getId() { 38 | return id; 39 | } 40 | 41 | public void setId(long id) { 42 | this.id = id; 43 | } 44 | 45 | public long getpId() { 46 | return pId; 47 | } 48 | 49 | public void setpId(long pId) { 50 | this.pId = pId; 51 | } 52 | 53 | public T getItem() { 54 | return item; 55 | } 56 | 57 | public void setItem(T item) { 58 | this.item = item; 59 | } 60 | 61 | public String getName() { 62 | return name; 63 | } 64 | 65 | public void setName(String name) { 66 | this.name = name; 67 | } 68 | 69 | public boolean isExpand() { 70 | return isExpand; 71 | } 72 | 73 | public List> getChildren() { 74 | return children; 75 | } 76 | 77 | public void setChildren(List> children) { 78 | this.children = children; 79 | } 80 | 81 | public Node getParent() { 82 | return parent; 83 | } 84 | 85 | public void setParent(Node parent) { 86 | this.parent = parent; 87 | } 88 | 89 | public int getResId() { 90 | return resId; 91 | } 92 | 93 | public void setResId(int resId) { 94 | this.resId = resId; 95 | } 96 | 97 | /** 98 | * 是否为根节点 99 | */ 100 | public boolean isRoot() { 101 | return parent == null; 102 | } 103 | 104 | /** 105 | * 判断父节点是否展开 106 | */ 107 | public boolean isParentExpand() { 108 | return parent != null && parent.isExpand(); 109 | } 110 | 111 | /** 112 | * 是否是叶子界点 113 | */ 114 | public boolean isLeaf() { 115 | return children.size() == 0; 116 | } 117 | 118 | /** 119 | * 获取level 120 | */ 121 | public int getLevel() { 122 | return parent == null ? 0 : parent.getLevel() + 1; 123 | } 124 | 125 | /** 126 | * 设置展开 127 | */ 128 | public void setExpand(boolean isExpand) { 129 | this.isExpand = isExpand; 130 | } 131 | 132 | @Override 133 | public boolean equals(Object o) { 134 | if (this == o) return true; 135 | if (o == null || getClass() != o.getClass()) return false; 136 | 137 | Node node = (Node) o; 138 | 139 | if (id != node.id) return false; 140 | if (pId != node.pId) return false; 141 | if (isExpand != node.isExpand) return false; 142 | if (icon != node.icon) return false; 143 | if (resId != node.resId) return false; 144 | if (name != null ? !name.equals(node.name) : node.name != null) return false; 145 | if (item != null ? !item.equals(node.item) : node.item != null) return false; 146 | if (children != null ? !children.equals(node.children) : node.children != null) 147 | return false; 148 | return parent != null ? parent.equals(node.parent) : node.parent == null; 149 | 150 | } 151 | 152 | @Override 153 | public int hashCode() { 154 | int result = (int) (id ^ (id >>> 32)); 155 | result = 31 * result + (int) (pId ^ (pId >>> 32)); 156 | result = 31 * result + (name != null ? name.hashCode() : 0); 157 | result = 31 * result + (item != null ? item.hashCode() : 0); 158 | result = 31 * result + (isExpand ? 1 : 0); 159 | result = 31 * result + icon; 160 | result = 31 * result + (children != null ? children.hashCode() : 0); 161 | result = 31 * result + (parent != null ? parent.hashCode() : 0); 162 | result = 31 * result + resId; 163 | return result; 164 | } 165 | } 166 | -------------------------------------------------------------------------------- /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 | -------------------------------------------------------------------------------- /treeadapter/src/main/java/com/kanade/treeadapter/TreeAdapter.java: -------------------------------------------------------------------------------- 1 | package com.kanade.treeadapter; 2 | 3 | import android.content.Context; 4 | import android.support.v7.widget.RecyclerView; 5 | import android.view.LayoutInflater; 6 | import android.view.View; 7 | import android.view.ViewGroup; 8 | import android.widget.ImageView; 9 | import android.widget.TextView; 10 | 11 | import java.util.List; 12 | 13 | /** 14 | * 多层级树状列表，适用于recyclerview 15 | * Created by kanade on 2016/11/15. 16 | */ 17 | 18 | public class TreeAdapter extends RecyclerView.Adapter{ 19 | private static final int PADDING = 30; 20 | private Context mContext; 21 | private List> mNodes; 22 | private TreeItemClickListener mListener; 23 | 24 | /** 25 | * 要在{@link #setNodes(List)}之后才会刷新数据 26 | */ 27 | public TreeAdapter(Context context) { 28 | mContext = context; 29 | } 30 | 31 | public TreeAdapter(Context context, List data) { 32 | mContext = context; 33 | setNodes(data); 34 | } 35 | 36 | public void setListener(TreeItemClickListener mListener) { 37 | this.mListener = mListener; 38 | } 39 | 40 | /** 41 | * 获取指定下标节点的源数据 42 | * @param index 指定的下标 43 | */ 44 | public T getItem(int index) { 45 | return mNodes.get(index).getItem(); 46 | } 47 | 48 | /** 49 | * 获取指定id的源数据 50 | * @param id 指定的id 51 | */ 52 | public T getItemById(int id) { 53 | for (Node node : mNodes) { 54 | if (node.getId() == id) { 55 | return node.getItem(); 56 | } 57 | } 58 | return null; 59 | } 60 | 61 | /** 62 | * 需要传入数据才会刷新treeview，默认所有节点都会折叠，只保留根节点 63 | */ 64 | public void setNodes(List data) { 65 | List> allNodes = TreeHelper.getSortedNode(data, 0); 66 | mNodes = TreeHelper.filterVisibleNode(allNodes); 67 | } 68 | 69 | /** 70 | * 在给定下标的节点处添加子节点，并展开该节点 71 | * 注意执行该方法是强制将数据挂在指定节点下 72 | * 如子节点的实际父节点并非指定节点，则在下一次调用{@link #setNodes(List)}时会重新调整 73 | * @param index 将数据添加到该下标的节点处 74 | * @param data 要添加的数据 75 | */ 76 | public void addChildrenByIndex(int index, List data) { 77 | Node parent = mNodes.get(index); 78 | List> childNodes = TreeHelper.getSortedNode(data, 0); 79 | List> children = parent.getChildren(); 80 | parent.setExpand(true); 81 | for (Node node : childNodes) { 82 | node.setParent(parent); 83 | children.add(node); 84 | } 85 | // 展开节点 86 | int count = addChildNodes(parent, index + 1); 87 | notifyItemChanged(index); 88 | notifyItemRangeInserted(index + 1, count); 89 | } 90 | 91 | /** 92 | * 向指定id节点下添加子节点，并展开该节点 93 | * 注意执行该方法是强制将数据挂在指定节点下 94 | * 如子节点的实际父节点并非指定节点，则在下一次调用{@link #setNodes(List)}时会重新调整 95 | * @param id 作为父节点的id 96 | * @param data 要添加的数据 97 | */ 98 | public void addChildrenById(int id, List data) { 99 | int index = findNode(id); 100 | if (index != -1) { 101 | addChildrenByIndex(index, data); 102 | } 103 | } 104 | 105 | /** 106 | * 根据id查找指定节点 107 | * @param id 需要查找的节点id 108 | * @return 查找成功的下标，若不存在该节点，返回-1 109 | */ 110 | public int findNode(int id) { 111 | int size = mNodes.size(); 112 | for (int i = 0; i < size; i++) { 113 | Node node = mNodes.get(i); 114 | if (node.getId() == id) { 115 | return i; 116 | } 117 | } 118 | return -1; 119 | } 120 | 121 | @Override 122 | public TreeViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 123 | LayoutInflater inflater = LayoutInflater.from(mContext); 124 | View view = inflater.inflate(R.layout.rv_item_tree, parent, false); 125 | return new TreeViewHolder(view); 126 | } 127 | 128 | @Override 129 | public void onBindViewHolder(TreeAdapter.TreeViewHolder holder, int position) { 130 | Node node = mNodes.get(position); 131 | // holder.itemView.setPadding(node.getLevel() * PADDING, 3, 3, 3); 132 | holder.setControl(node); 133 | } 134 | 135 | @Override 136 | public int getItemCount() { 137 | return mNodes.size(); 138 | } 139 | 140 | class TreeViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{ 141 | private ImageView icon; 142 | private TextView title; 143 | private ImageView detail; 144 | 145 | private TreeViewHolder(View itemView) { 146 | super(itemView); 147 | 148 | icon = (ImageView) itemView.findViewById(R.id.rv_item_tree_icon); 149 | title = (TextView) itemView.findViewById(R.id.rv_item_tree_title); 150 | detail = (ImageView) itemView.findViewById(R.id.tv_item_tree_detail); 151 | 152 | itemView.setOnClickListener(this); 153 | detail.setOnClickListener(this); 154 | itemView.setTag(System.currentTimeMillis()); 155 | } 156 | 157 | private void setControl(Node node) { 158 | title.setText(node.getName()); 159 | title.setPadding(node.getLevel() * PADDING, 3, 3, 3); 160 | detail.setImageResource(node.getResId()); 161 | if (node.isLeaf()) { 162 | icon.setImageResource(0); 163 | return; 164 | } 165 | 166 | int rotateDegree = node.isExpand() ? 90 : 0; 167 | icon.setRotation(0); 168 | icon.setRotation(rotateDegree); 169 | icon.setImageResource(R.drawable.ic_node_toggle); 170 | } 171 | 172 | @Override 173 | public void onClick(View view) { 174 | Node node = mNodes.get(getLayoutPosition()); 175 | if (view.getId() == R.id.tv_item_tree_detail) { 176 | if (mListener != null) { 177 | mListener.OnClick(node); 178 | } 179 | return; 180 | } 181 | 182 | if (node != null && !node.isLeaf()) { 183 | long lastClickTime = (long) itemView.getTag(); 184 | // 避免过快点击 185 | if (System.currentTimeMillis() - lastClickTime < 200) { 186 | return; 187 | } 188 | 189 | itemView.setTag(System.currentTimeMillis()); 190 | int rotateDegree = node.isExpand() ? -90 : 90; 191 | icon.animate() 192 | .setDuration(100) 193 | .rotationBy(rotateDegree) 194 | .start(); 195 | 196 | boolean isExpand = node.isExpand(); 197 | node.setExpand(!isExpand); 198 | if (!isExpand) { 199 | notifyItemRangeInserted(getLayoutPosition() + 1, addChildNodes(node, getLayoutPosition() + 1)); 200 | } else { 201 | notifyItemRangeRemoved(getLayoutPosition() + 1, removeChildNodes(node)); 202 | } 203 | } 204 | } 205 | } 206 | 207 | private int addChildNodes(Node n, int startIndex) { 208 | List> childList = n.getChildren(); 209 | int addChildCount = 0; 210 | for (Node node : childList) { 211 | mNodes.add(startIndex + addChildCount++, node); 212 | // 递归展开其下要展开的子元素 213 | if (node.isExpand()) { 214 | addChildCount += addChildNodes(node, startIndex + addChildCount); 215 | } 216 | } 217 | return addChildCount; 218 | } 219 | 220 | // 折叠父节点时删除其下所有子元素 221 | private int removeChildNodes(Node n) { 222 | if (n.isLeaf()) { 223 | return 0; 224 | } 225 | 226 | List> childList = n.getChildren(); 227 | int removeChildCount = childList.size(); 228 | mNodes.removeAll(childList); 229 | for (Node node : childList) { 230 | if (node.isExpand()) { 231 | removeChildCount += removeChildNodes(node); 232 | } 233 | } 234 | return removeChildCount; 235 | } 236 | } 237 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 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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