Grafik pada android

Grafik adalah salah satu komponen yang di mana berguna untuk  penyajian data yang bisa berupa garis, chart, pie dll. di android kita juga bisa membuat grafik tersebut dengan menggunakan library HoloGraph, Untuk implementasi bisa lihat code di bawah ini

package com.example.tesholograp;

import com.echo.holographlibrary.Line;
import com.echo.holographlibrary.LineGraph;
import com.echo.holographlibrary.LinePoint;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.app.Activity;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.view.Menu;
import android.widget.TextView;

@SuppressLint("NewApi")
public class Lineeee extends Activity {
TextView x,y;
 @Override
 protected void onCreate(Bundle savedInstanceState)
 {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_lineeee);
  x=(TextView)findViewById(R.id.x);
  y=(TextView)findViewById(R.id.y);
  Line l = new Line();
  LinePoint p = new LinePoint();
  
  ActionBar actionBar = getActionBar();
  actionBar.setTitle("Grafik Penjualan");
  actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
  actionBar.setDisplayHomeAsUpEnabled(true);
  actionBar.setDisplayShowTitleEnabled(true);
  actionBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#FF5722")));
  
  p.setX(0);
  p.setY(5);
  l.addPoint(p);
  p = new LinePoint();
  p.setX(8);
  p.setY(8);
  l.addPoint(p);
  p = new LinePoint();
  p.setX(10);
  p.setY(4);
  l.addPoint(p);
  l.setColor(Color.parseColor("#CC0000"));
        x.setText("x :"+p.getX()+"  ");
        y.setText("y:"+p.getY());
  LineGraph li = (LineGraph)findViewById(R.id.graph);
  li.addLine(l);
  li.setRangeY(0, 10);
  li.setLineToFill(0);
  
 }

 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  // Inflate the menu; this adds items to the action bar if it is present.
  getMenuInflater().inflate(R.menu.lineeee, menu);
  return true;
 }

}

Untuk XML

 
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/AbsoluteLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#BDBDBD"
    tools:context=".Lineeee" >

    <com.echo.holographlibrary.LineGraph
        android:id="@+id/graph"
        android:layout_width="294dp"
        android:layout_height="138dp"
        android:layout_x="14dp"
        android:layout_y="75dp"
        android:background="#ffffff" />

    <LinearLayout
        android:layout_width="294dp"
        android:layout_height="30dp"
        android:layout_x="14dp"
        android:layout_y="39dp"
        android:background="#ffffff"
        android:orientation="horizontal" >

        <TextView
            android:id="@+id/x"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Medium Text"
            android:textAppearance="?android:attr/textAppearanceMedium" />

        <TextView
            android:id="@+id/y"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Medium Text"
            android:textAppearance="?android:attr/textAppearanceMedium" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="294dp"
        android:layout_height="18dp"
        android:layout_x="14dp"
        android:layout_y="22dp"
        android:background="#ffffff"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/TextView01"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="#33B5E5"
            android:text="  Real Time Coordinate  "
            android:textAppearance="?android:attr/textAppearanceSmall"
            android:textColor="#ffffff" />
    </LinearLayout>

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_x="14dp"
        android:layout_y="74dp"
        android:background="#33B5E5"
        android:text="  Real Time Graph  "
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="#ffffff" />

</AbsoluteLayout>