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dagger code added
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‎dagger/README.md‎

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# dagger
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This is repository of http://androidcode.pl blog. It shows uses Dagger in Android. It is a part of Libraries - Dagger post in the blog.

‎dagger/common/dependency/ComplexDependency.java‎

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public class ComplexDependency {
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private NetworkManager networkManager;
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//more fields
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public ComplexDependency(NetworkManager networkManager) {
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this.networkManager = networkManager;
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}
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public String getInfo() {
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return "ComplexDependency is " + networkManager.getUrl() + ":" + networkManager.getPort();
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}
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//do some actions
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}

‎dagger/common/dependency/NetworkManager.java‎

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public class NetworkManager {
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private int port;
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private String url;
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public NetworkManager(String url, int port) {
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this.url = url;
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this.port = port;
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}
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public int getPort() {
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return port;
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}
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public void setPort(int port) {
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this.port = port;
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}
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public String getUrl() {
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return url;
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}
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public void setUrl(String url) {
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this.url = url;
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}
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//do some work
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}

‎dagger/common/dependency/SimpleDependency.java‎

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public class SimpleDependency {
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private String color;
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private String shape;
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private SimpleDependency(Builder builder) {
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this.color = builder.color;
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this.shape = builder.shape;
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}
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public String getInfo() {
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return "SimpleDependency is " + color + " " + shape;
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}
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public static class Builder {
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private String color;
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private String shape;
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public Builder setColor(String color) {
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this.color = color;
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return this;
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}
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public Builder setShape(String shape) {
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this.shape = shape;
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return this;
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}
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public SimpleDependency build() {
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return new SimpleDependency(this);
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}
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}
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}

‎dagger/common/dependency/UserManager.java‎

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public class UserManager {
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private String configuration;
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//more fields
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public UserManager(String configuration) {
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this.configuration = configuration;
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}
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public String getConfiguration() {
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return configuration;
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}
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public void setConfiguration(String configuration) {
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this.configuration = configuration;
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}
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}

‎dagger/common/module/AppModule.java‎

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//create main app module to provide Application and Context
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@Module
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public class AppModule {
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private Application application;
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public AppModule(Application application) {
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this.application = application;
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}
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@Provides @Singleton
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Application providesApplication() {
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return application;
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}
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}

‎dagger/common/module/ManagerModule.java‎

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//some manager module
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@Module
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public class ManagerModule {
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private String url;
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public ManagerModule(String name) {
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this.url = name;
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}
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@Provides @Named("red")
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SimpleDependency provideSimpleDependencyRed() {
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SimpleDependency.Builder builder = new SimpleDependency.Builder();
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builder.setColor("red").setShape("oval");
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return builder.build();
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}
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@Provides @Named("blue")
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SimpleDependency provideSimpleDependencyBlue() {
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SimpleDependency.Builder builder = new SimpleDependency.Builder();
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builder.setColor("blue").setShape("triangle");
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return builder.build();
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}
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@Provides @Singleton
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ComplexDependency provideComplexDependency(NetworkManager networkDependency) {
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return new ComplexDependency(networkDependency);
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}
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@Provides @Singleton
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NetworkManager provideNetworkDependency() {
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return new NetworkManager(url, 80);
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}
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@Provides @Singleton
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SharedPreferences providesSharedPreferences(Application application) {
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return PreferenceManager.getDefaultSharedPreferences(application);
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}
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}

‎dagger/common/module/UserModule.java‎

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@Module
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public class UserModule {
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private final UserActivity activity;
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public UserModule(UserActivity activity) {
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this.activity = activity;
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}
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@Provides @UserScope
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public UserManager providesUserDependency() {
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return new UserManager("global");
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}
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}

‎dagger/common/qualifier/Type.java‎

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@Qualifier
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@Retention(RUNTIME)
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public @interface Type {
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//qualifier annotations to use like @Named, for example:
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//@Inject @Type("type")
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SimpleDependency dependency
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}

‎dagger/common/scope/UserScope.java‎

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@Scope
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@Retention(value = RetentionPolicy.RUNTIME)
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public @interface UserScope {
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//informs about custom lifecycle time
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//use this annotations in cases like @Singleton
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}

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