I am trying to use MPAndroidChart library in my project. This is how my layout and Activity code. It is not showing up anything in my layout when I run this. I am sure I'm missing something really small. But what is it? It is really bugging me why it is not showing up
graph_activity.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin">
<com.github.mikephil.charting.charts.BarChart
android:id="@+id/chart"
android:visibility="visible"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
GraphTestActivity.java
public class GraphTestActivity extends ActionBarActivity {
private LineChart responseTimeChart;
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(R.layout.graph_activity);
showBarChart();
}
private void showBarChart() {
BarChart chart = (BarChart) findViewById(R.id.chart);
BarData data = new BarData(getXAxisValues(), getDataSet());
chart.setData(data);
chart.setDescription("My Chart");
chart.animateXY(2000, 2000);
chart.invalidate();
}
private ArrayList<BarDataSet> getDataSet() {
ArrayList<BarDataSet> dataSets = null;
ArrayList<BarEntry> valueSet1 = new ArrayList<>();
BarEntry v1e1 = new BarEntry(110.000f, 0); // Jan
valueSet1.add(v1e1);
BarEntry v1e2 = new BarEntry(40.000f, 1); // Feb
valueSet1.add(v1e2);
BarEntry v1e3 = new BarEntry(60.000f, 2); // Mar
valueSet1.add(v1e3);
BarEntry v1e4 = new BarEntry(30.000f, 3); // Apr
valueSet1.add(v1e4);
BarEntry v1e5 = new BarEntry(90.000f, 4); // May
valueSet1.add(v1e5);
BarEntry v1e6 = new BarEntry(100.000f, 5); // Jun
valueSet1.add(v1e6);
ArrayList<BarEntry> valueSet2 = new ArrayList<>();
BarEntry v2e1 = new BarEntry(150.000f, 0); // Jan
valueSet2.add(v2e1);
BarEntry v2e2 = new BarEntry(90.000f, 1); // Feb
valueSet2.add(v2e2);
BarEntry v2e3 = new BarEntry(120.000f, 2); // Mar
valueSet2.add(v2e3);
BarEntry v2e4 = new BarEntry(60.000f, 3); // Apr
valueSet2.add(v2e4);
BarEntry v2e5 = new BarEntry(20.000f, 4); // May
valueSet2.add(v2e5);
BarEntry v2e6 = new BarEntry(80.000f, 5); // Jun
valueSet2.add(v2e6);
BarDataSet barDataSet1 = new BarDataSet(valueSet1, "Brand 1");
barDataSet1.setColor(Color.rgb(0, 155, 0));
BarDataSet barDataSet2 = new BarDataSet(valueSet2, "Brand 2");
barDataSet2.setColors(ColorTemplate.COLORFUL_COLORS);
dataSets = new ArrayList<>();
dataSets.add(barDataSet1);
dataSets.add(barDataSet2);
return dataSets;
}
private ArrayList<String> getXAxisValues() {
ArrayList<String> xAxis = new ArrayList<>();
xAxis.add("JAN");
xAxis.add("FEB");
xAxis.add("MAR");
xAxis.add("APR");
xAxis.add("MAY");
xAxis.add("JUN");
return xAxis;
}
}
Since the version 22.1.0, the class
ActionBarActivity
is deprecated. You should useAppCompatActivity
.Maybe this could be an issue why something is not showing? Are you sure your issue is related to the library? Have you added e.g. a
TextView
to the .xml file and verified if it is showing?