我正在尝试使用mpandroid图表创建BarChart（分组数据集）图表，同时使用来自sqlite的实时数据设置值但是当我从webservice获取数据并尝试将值设置为Chart时，我得到的错误就像数据集条目长于x chartdata对象的轴值 这是我的代码：
import android.database.Cursor;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.android.volley.RequestQueue;
import com.github.mikephil.charting.charts.BarChart;
import com.github.mikephil.charting.data.BarData;
import com.github.mikephil.charting.data.BarDataSet;
import com.github.mikephil.charting.data.BarEntry;
import com.github.mikephil.charting.interfaces.datasets.IBarDataSet;
import java.util.ArrayList;
import java.util.List;
import SqliteDatabase.TimeTrackerDAO;
import model.DashboardModelCommercial;
/**
* Created by 4264 on 27-06-2016.
*/
public class DashBoardCommercial extends Fragment implements LoaderManager.LoaderCallbacks<Cursor>{
RequestQueue mrequestqueue;
TimeTrackerDAO timeTrackerDAO;
private int dashboard = 1;
Cursor c;
List<DashboardModelCommercial>listobj;
View view;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_commercial, container, false);
BarChart chart = (BarChart)view. findViewById(R.id.chart);
timeTrackerDAO=new TimeTrackerDAO(getContext().getApplicationContext());
listobj=new ArrayList<>();
getLoaderManager().initLoader(dashboard, null, this);
return view;
}
/*private ArrayList<IBarDataSet> getDataSet() {
ArrayList<IBarDataSet> 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);
ArrayList<BarEntry> valueSet3 = new ArrayList<>();
BarEntry v2e= new BarEntry(150.000f, 0); // Jan
valueSet3.add(v2e);
BarEntry v = new BarEntry(90.000f, 1); // Feb
valueSet3.add(v);
BarEntry vv = new BarEntry(120.000f, 2); // Mar
valueSet3.add(vv);
BarEntry vvv = new BarEntry(60.000f, 3); // Apr
valueSet3.add(vvv);
BarEntry vvvv = new BarEntry(20.000f, 4); // May
valueSet3.add(vvvv);
BarEntry vvvvv = new BarEntry(80.000f, 5); // Jun
valueSet3.add(vvvvv);
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);
BarDataSet barDataSet3 = new BarDataSet(valueSet3, "Brand 3");
barDataSet3.setColors(ColorTemplate.COLORFUL_COLORS);
dataSets = new ArrayList<>();
dataSets.add(barDataSet1);
dataSets.add(barDataSet2);
dataSets.add(barDataSet3);
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;
}
*/
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
return new CursorLoader(getContext().getApplicationContext(), TimeTrackerDAO.DB_Timetracker_DashBoardCommercial, null, null, null, null){
ForceLoadContentObserver mObserver=new ForceLoadContentObserver();
@Override
public Cursor loadInBackground() {
c = timeTrackerDAO.DashBoardCommercial();
if(c==null){
Log.d("No Data", "No Data");
}
else {
c.getCount();
c.registerContentObserver(mObserver);
c.setNotificationUri(getContext().getContentResolver(), getUri());
}
return c;
}
};
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
BarChart chart = (BarChart) view.findViewById(R.id.chart);
if (getDataSet(data)
!= null) {
BarData data_commercial = new BarData(getXAxisValues(), getDataSet(data));
chart.setData(data_commercial);
chart.setDescription("My Chart");
chart.animateXY(2000, 2000);
chart.invalidate();
}
else {
Log.e("err", "err");
}
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
}
private ArrayList<IBarDataSet> getDataSet(Cursor c) {
ArrayList<IBarDataSet> dataSets = null;
ArrayList<BarEntry> valueSet1 = new ArrayList<>();
List<DashboardModelCommercial>liststatus=new ArrayList<>();
c=timeTrackerDAO.DashBoardCommercialStatus0();
if (c.moveToFirst()) {
do {
DashboardModelCommercial dashboardModelCommercial=new DashboardModelCommercial();
dashboardModelCommercial.setCount(c.getInt(c.getColumnIndex(DashboardModelCommercial.Commercial_Count)));
liststatus.add(dashboardModelCommercial);
} while (c.moveToNext());
}
for(int i=0;i<liststatus.size();i++){
valueSet1.add(new BarEntry(liststatus.get(i).getCount(),i));//Status 0
}
ArrayList<BarEntry> valueSet2 = new ArrayList<>();
List<DashboardModelCommercial>liststatus1=new ArrayList<>();
c=timeTrackerDAO.DashBoardCommercialStatus1();
if (c.moveToFirst()) {
do {
DashboardModelCommercial dashboardModelCommercial=new DashboardModelCommercial();
dashboardModelCommercial.setCount(c.getInt(c.getColumnIndex(DashboardModelCommercial.Commercial_Count)));
liststatus1.add(dashboardModelCommercial);
} while (c.moveToNext());
}
for(int i=0;i<liststatus1.size();i++){
valueSet2.add(new BarEntry(liststatus1.get(i).getCount(),i));//Status 0
}
ArrayList<BarEntry> valueSet3 = new ArrayList<>();
List<DashboardModelCommercial>liststatus2=new ArrayList<>();
c=timeTrackerDAO.DashBoardCommercialStatus2();
if(c.moveToFirst()){
do {
{
DashboardModelCommercial dashboardModelCommercial=new DashboardModelCommercial();
dashboardModelCommercial.setCount(c.getInt(c.getColumnIndex(DashboardModelCommercial.Commercial_Count)));
liststatus2.add(dashboardModelCommercial);
}
}while (c.moveToNext());
}
for (int i=0;i<liststatus2.size();i++){
valueSet3.add(new BarEntry(liststatus2.get(i).getCount(),i));
}
ArrayList<BarEntry>valueSet4=new ArrayList<>();
List<DashboardModelCommercial>liststatus3=new ArrayList<>();
c=timeTrackerDAO.DashBoardCommercialStatus3();
if(c.moveToFirst()){
do {
{
DashboardModelCommercial dashboardModelCommercial=new DashboardModelCommercial();
dashboardModelCommercial.setCount(c.getInt(c.getColumnIndex(DashboardModelCommercial.Commercial_Count)));
liststatus3.add(dashboardModelCommercial);
}
}while (c.moveToNext());
}
for (int i=0;i<liststatus3.size();i++){
valueSet4.add(new BarEntry(liststatus3.get(i).getCount(),i));
}
BarDataSet barDataSet1 = new BarDataSet(valueSet1, "Not Started");
barDataSet1.setColor(Color.rgb(0, 155, 0));
BarDataSet barDataSet2 = new BarDataSet(valueSet2, "In Progress");
barDataSet2.setColor(Color.rgb(164, 228, 251));
BarDataSet barDataSet3 = new BarDataSet(valueSet3, "Completed");
barDataSet3.setColor(Color.rgb(242, 247, 158));
BarDataSet barDataSet4 = new BarDataSet(valueSet4, " Not Completed");
barDataSet4.setColor(Color.rgb(200, 220, 170));
dataSets = new ArrayList<>();
dataSets.add(barDataSet1);
dataSets.add(barDataSet2);
dataSets.add(barDataSet3);
dataSets.add(barDataSet4);
return dataSets;
}
private ArrayList<String> getXAxisValues() {
ArrayList<String> xAxis = new ArrayList<>();
xAxis.add("Billable");
xAxis.add("Non Billable");
return xAxis;
}
}
我不知道在哪里弄错了如何重新认识如果我只是在墙上撞了好几个小时都可以帮助我解决这个问题！
答案 0 :(得分：0)
条形码计数和XAxis标签计数应该相等。
您只在getXAxisValues()方法中添加了2个XAxis标签。
您的BarDataSet可能会获得超过2个条目的条目。
在BarDataSet中添加等于条形项的XAxis标签。