CODEWITHSUNDEEP
androidheightwidthbar-chartmpandroidchart
dhar619
dhar619

Reputation: 55

How to set height and width to MPAndroidChart BarChart?

I am trying to add a static BarChart to the activity, but its covering whole screen. The code i am using is below -

MainActivity.java

 BarChart bc = (BarChart) findViewById(R.id.chart);


    ArrayList<BarEntry> entries = new ArrayList<>();
    entries.add(new BarEntry(4f, 0));
    entries.add(new BarEntry(8f, 1));
    entries.add(new BarEntry(6f, 2));
    entries.add(new BarEntry(12f, 3));
    entries.add(new BarEntry(18f, 4));
    entries.add(new BarEntry(9f, 5));
    entries.add(new BarEntry(12f, 6));
    entries.add(new BarEntry(10f, 7));

    BarDataSet dataset = new BarDataSet(entries, "# of Calls");

    ArrayList<String> labels = new ArrayList<String>();
    labels.add("January");
    labels.add("February");
    labels.add("March");
    labels.add("April");
    labels.add("May");
    labels.add("June");
    labels.add("July");
    labels.add("August");
bc=new BarChart(this);

    BarData data = new BarData(labels, dataset);


    setContentView(bc);

   bc.setData(data);

MainActivity.xml

<com.github.mikephil.charting.charts.BarChart
    android:layout_width="200dp"
    android:layout_height="200dp"
    android:id="@+id/chart"
    android:layout_below="@+id/textView"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_marginTop="62dp">

    </com.github.mikephil.charting.charts.BarChart>

Where i am going wrong? Any suggestions

Upvotes: 3

Views: 6117

Answers (1)

j449li
j449li

Reputation: 103

When you call setContentView() the layout parameters of the specified view are ignored, and set to the default MATCH_PARENT, so in your code setContentView(bc) will cause your BarChart to fill the entire screen.

One solution would be to place your static BarChart view under a ViewGroup, like LinearLayout, in activity_main.xml, and call setContentView(R.layout.activity_main).

EDIT:

Another thing, in your code you obtained the BarChart defined in your xml by doing:

BarChart bc = (BarChart) findViewById(R.id.chart);

Which is correct... but later on in your code, you made the above line pointless by assigning bcto another BarChart you instantiated:

bc=new BarChart(this);

So, remove this line and you should be able to see your BarChart.

Upvotes: 2

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