larkintuckerllc

...
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    TextView dateTextView = findViewById(R.id.tvDate);
    MyExample myExample = MyExample.getInstance();
    dateTextView.setText((new Date(myExample.getDate())).toString());
}
...

larkintuckerllc

...
dependencies {
    ...
    compile  'com.google.dagger:dagger:2.13'
    annotationProcessor 'com.google.dagger:dagger-compiler:2.13'
}

larkintuckerllc

...
<TextView
    android:id="@+id/tvDate"
    android:layout_width="wrap_content"
...

larkintuckerllc

...
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    TextView dateTextView = findViewById(R.id.tvDate);
...

larkintuckerllc

package com.larkintuckerllc.dagger;

interface MyExample {
    
    long getDate();
    
}

larkintuckerllc

package com.larkintuckerllc.dagger;

import java.util.Date;

class MyExampleImpl implements MyExample {

    private long mDate;
    
    MyExampleImpl() {
        mDate = new Date().getTime();

larkintuckerllc

package com.larkintuckerllc.dagger;

import javax.inject.Singleton;
import dagger.Module;
import dagger.Provides;

@Module
class MyModule {

    @Provides

larkintuckerllc

package com.larkintuckerllc.dagger;

import javax.inject.Singleton;
import dagger.Component;

@Singleton
@Component(modules = MyModule.class)
interface MyComponent {

    void inject(MainActivity mainActivity);

larkintuckerllc

...
<application
    ...
    android:theme="@style/AppTheme"
    android:name=".MyApplication"
...

larkintuckerllc

import android.app.Application;

    public class MyApplication extends Application {
    private MyComponent mMyComponent;

    @Override
    public void onCreate() {
        super.onCreate();
        mMyComponent = createMyComponent();
    }