Hi Guys, Maybe you all are expert in terms of using RecyclerView in android. This blog is simple example for using filter option with RecyclerView adapter. As for now you will instantiate RecyclerView and set the adapter to RecyclerView as following way. RecyclerView list = (RecyclerView) findViewById(R.id.list); list.setLayoutManager(new LinearLayoutManager(this)); list.setHasFixedSize(true); ArrayList<Number> numbers = new ArrayList<>(); String ONEs[] = {"ZERO", "ONE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN", "EIGHT", "NINE", "TEN"}; String TENs[] = {"ZERO", "TEN", "TWENTY", "THIRTY", "FOURTY", "FIFTY", "SIXTY", "SEVENTY", "EIGHTY", "NINETY", "HUNDRED"}; String HUNDREDS[] = {"ZERO", "HUNDRED", "TWO HUND...
AChartEngine is now the most widely used jar in the world to draw various types of following charts.
1. Graphical chart
2. Line chart
3. Bar chart
4. Scatter chart
5. Time chart
6. Pie chart
This article is about draw pie chart using achartengine.
Sample screen shot of pie chart drawn using achartengine.
This pie chart has the following options.
1. Movable
2. Zoomable
3. Clickable
To draw this chart first you have to import achartengine jar into your project folder. If you are using eclipse then right click on your project --> Build Path --> Configure Build Path --> Libraries tab --> Add External JARs. This is the way to import external jars into our project.
Coding:
main.xml
AChartEnginePieChartActivity.java
Related article Pie Chart in Android without using external jar
1. Graphical chart
2. Line chart
3. Bar chart
4. Scatter chart
5. Time chart
6. Pie chart
This article is about draw pie chart using achartengine.
Sample screen shot of pie chart drawn using achartengine.
This pie chart has the following options.
1. Movable
2. Zoomable
3. Clickable
To draw this chart first you have to import achartengine jar into your project folder. If you are using eclipse then right click on your project --> Build Path --> Configure Build Path --> Libraries tab --> Add External JARs. This is the way to import external jars into our project.
Coding:
main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <LinearLayout android:id="@+id/chart" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="horizontal" > </LinearLayout> </LinearLayout>
AChartEnginePieChartActivity.java
import org.achartengine.ChartFactory; import org.achartengine.GraphicalView; import org.achartengine.model.CategorySeries; import org.achartengine.model.SeriesSelection; import org.achartengine.renderer.DefaultRenderer; import org.achartengine.renderer.SimpleSeriesRenderer; import android.app.Activity; import android.graphics.Color; import android.os.Bundle; import android.view.View; import android.view.ViewGroup.LayoutParams; import android.widget.LinearLayout; import android.widget.Toast; public class AChartEnginePieChartActivity extends Activity { private static int[] COLORS = new int[] { Color.GREEN, Color.BLUE,Color.MAGENTA, Color.CYAN }; private static double[] VALUES = new double[] { 10, 11, 12, 13 }; private static String[] NAME_LIST = new String[] { "A", "B", "C", "D" }; private CategorySeries mSeries = new CategorySeries(""); private DefaultRenderer mRenderer = new DefaultRenderer(); private GraphicalView mChartView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mRenderer.setApplyBackgroundColor(true); mRenderer.setBackgroundColor(Color.argb(100, 50, 50, 50)); mRenderer.setChartTitleTextSize(20); mRenderer.setLabelsTextSize(15); mRenderer.setLegendTextSize(15); mRenderer.setMargins(new int[] { 20, 30, 15, 0 }); mRenderer.setZoomButtonsVisible(true); mRenderer.setStartAngle(90); for (int i = 0; i < VALUES.length; i++) { mSeries.add(NAME_LIST[i] + " " + VALUES[i], VALUES[i]); SimpleSeriesRenderer renderer = new SimpleSeriesRenderer(); renderer.setColor(COLORS[(mSeries.getItemCount() - 1) % COLORS.length]); mRenderer.addSeriesRenderer(renderer); } if (mChartView != null) { mChartView.repaint(); } } @Override protected void onResume() { super.onResume(); if (mChartView == null) { LinearLayout layout = (LinearLayout) findViewById(R.id.chart); mChartView = ChartFactory.getPieChartView(this, mSeries, mRenderer); mRenderer.setClickEnabled(true); mRenderer.setSelectableBuffer(10); mChartView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { SeriesSelection seriesSelection = mChartView.getCurrentSeriesAndPoint(); if (seriesSelection == null) { Toast.makeText(AChartEnginePieChartActivity.this,"No chart element was clicked",Toast.LENGTH_SHORT).show(); } else { Toast.makeText(AChartEnginePieChartActivity.this,"Chart element data point index "+ (seriesSelection.getPointIndex()+1) + " was clicked" + " point value="+ seriesSelection.getValue(), Toast.LENGTH_SHORT).show(); } } }); mChartView.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { SeriesSelection seriesSelection = mChartView.getCurrentSeriesAndPoint(); if (seriesSelection == null) { Toast.makeText(AChartEnginePieChartActivity.this,"No chart element was long pressed", Toast.LENGTH_SHORT); return false; } else { Toast.makeText(AChartEnginePieChartActivity.this,"Chart element data point index "+ seriesSelection.getPointIndex()+ " was long pressed",Toast.LENGTH_SHORT); return true; } } }); layout.addView(mChartView, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); } else { mChartView.repaint(); } } }
Related article Pie Chart in Android without using external jar
setOnLongClickListener is not working on mChartView. The rest is fine. Thanx for the tutorial.
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