boxes for android

Android Boxes

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Image.java

import com.squareup.picasso.Picasso;
import com.squareup.picasso.RequestCreator;
import java.io.File;

/**
 * box for image we do not know exact type.
 * it can be url, or res id
 */
public class Image {
  private final Type type;
  private final int resId;
  private final String url;
  private final File file;

  private Image(Type type, int resId, String url, File file) {
    this.type = type;
    this.resId = resId;
    this.url = url;
    this.file = file;
  }

  public Image(int resId) {
    this(Type.RES, resId, null, null);
  }

  public Image(String url) {
    this(Type.URL, -1, url, null);
  }

  public Image(File file) {
    this(Type.FILE, -1, null, file);
  }

  public Type getType() {
    return type;
  }

  public int getResId() {
    return resId;
  }

  public String getUrl() {
    return url;
  }

  public File getFile() {
    return file;
  }

  public RequestCreator load(Picasso picasso) {
    switch (type) {
      case URL:
        return picasso.load(url);
      case FILE:
        return picasso.load(file);
      case RES:
        return picasso.load(resId);
      default:
        throw new IllegalArgumentException("Unknown type: " + type);
    }
  }

  public enum Type {
    URL, FILE, RES
  }
}

Label.java

import android.content.Context;
import android.support.annotation.Nullable;
import android.widget.TextView;

/**
 * box for string we don't know exact type
 */
public class Label {
  private final Type type;
  private final int resId;
  private final String s;

  private Label(Type type, int resId, String s) {
    this.type = type;
    this.resId = resId;
    this.s = s;
  }

  public Label(int resId) {
    this.type = Type.RES;
    this.resId = resId;
    this.s = null;
  }

  public Label(String s) {
    this.type = Type.PLAIN;
    this.resId = -1;
    this.s = s;
  }

  public Loader load(Context context) {
    return new Loader(getString(context));
  }

  public String getString(Context context) {
    switch (type) {
      case RES:
        return context.getString(resId);
      case PLAIN:
        return s;
      default:
        throw new IllegalStateException("Unknown type: " + type);
    }
  }

  @Nullable
  public String getString() {
    return s;
  }

  public static class Loader {
    private final String s;

    public Loader(String s) {
      this.s = s;
    }

    public void into(TextView textView) {
      textView.setText(s);
    }
  }

  public enum Type {
    RES, PLAIN
  }
}