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我在使用MPAndroid庫的Android應用程序中顯示簡單的條形圖。條形圖有時可以完美顯示數據。但是,有時,儘管DataSet具有數據,但它顯示消息「無圖表數據可用」。MPAndroid條形圖僅在點擊圖表區域後顯示圖形,否則顯示「無圖表數據可用」
圖表僅在我點擊圖表區域時顯示。我GOOGLE了這一點,但我找不到解決方案。以下是代碼:
if (mCount > 0){mBarDataSet = new BarDataSet(mBarEntryAssessmentList, "Assessment Count");
mBarDataSet.setBarSpacePercent(5f);
mBarData = new BarData(trimmedSubjectNameList, mBarDataSet);
mBarData.setValueFormatter(new BarEntryValueFormatter()); // Setting a Value formatter to show Integer data instead of Float
mBarChart.setData(mBarData);
mBarChart.setDescription("");
mBarChart.setDrawGridBackground(false);
mBarChart.setDragEnabled(true);
mBarChart.setTouchEnabled(true);
mBarChart.setClickable(true);
mBarChart.setScaleXEnabled(false);
mBarChart.setScaleYEnabled(false);
mBarChart.setVisibleXRange(1, 4);
mBarChart.setHighlightPerDragEnabled(false);
mBarChart.setHighlightPerTapEnabled(true); // set this to true if we want to listen to click events
mBarChart.setOnChartValueSelectedListener(StudentProgressActivity.this);
XAxis xAxis = mBarChart.getXAxis();
xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
xAxis.setDrawLabels(true);
xAxis.setDrawGridLines(false);
xAxis.setLabelsToSkip(0); // Shows all the labels as initially we had problems showing all the labels
YAxis leftAxis = mBarChart.getAxisLeft();
leftAxis.setDrawLabels(true);
leftAxis.setDrawGridLines(false);
leftAxis.setAxisMinValue(0f); // Removes padding below YAxis minimum value and XAxis labels
YAxis rightAxis = mBarChart.getAxisRight();
rightAxis.setDrawLabels(false);
rightAxis.setDrawGridLines(false);
} else {
mBarChart.setDescription("");
mBarChart.setNoDataText("No Assessments yet");
}
任何援助將不勝感激。
它確實解決了這個問題。謝謝。 – Bot