this is my thingspeak chart <</matlabcentral/answers/uploaded_files/135202/thingspeak%E5%9C%96.PNG>> I want to show Field 1 2 3 chart and this is my android studio app chart <</matlabcentral/answers/uploaded_files/135203/app%E5%9C%96.png>> the time interval can't show like thingspeak's chart and this is my code package com.macroyau.thingspeakandroid.demo; import android.graphics.Color; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.Toast; import com.macroyau.thingspeakandroid.ThingSpeakChannel; import com.macroyau.thingspeakandroid.ThingSpeakLineChart; import com.macroyau.thingspeakandroid.model.ChannelFeed; import java.time.DayOfWeek; import java.time.Month; import java.util.Calendar; import java.util.Date; import lecho.lib.hellocharts.model.LineChartData; import lecho.lib.hellocharts.model.Viewport; import lecho.lib.hellocharts.view.LineChartView; public class DemoActivity extends AppCompatActivity { private ThingSpeakChannel tsChannel; private ThingSpeakLineChart tsChart,tsChart2,tsChart3; private LineChartView chartView,chartView2,chartView3; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Connect to ThinkSpeak Channel 9 tsChannel = new ThingSpeakChannel(566541); // Set listener for Channel feed update events tsChannel.setChannelFeedUpdateListener(new ThingSpeakChannel.ChannelFeedUpdateListener() { @Override public void onChannelFeedUpdated(long channelId, String channelName, ChannelFeed channelFeed) { // Show Channel ID and name on the Action Bar getSupportActionBar().setTitle(channelName); getSupportActionBar().setSubtitle("Channel " + channelId); // Notify last update time of the Channel feed through a Toast message Date lastUpdate = channelFeed.getChannel().getUpdatedAt(); Toast.makeText(DemoActivity.this, lastUpdate.toString(), Toast.LENGTH_LONG).show(); } }); // Fetch the specific Channel feed tsChannel.loadChannelFeed(); // Create a Calendar object dated 5 minutes ago Calendar calendar = Calendar.getInstance(); calendar.add(Calendar.DAY_OF_MONTH,-2); //calendar.roll(Calendar.DATE, 1); // 只增加月的欄位值為10個月 // Configure LineChartView chartView = findViewById(R.id.chart); chartView2 = findViewById(R.id.chart2); chartView3 = findViewById(R.id.chart3); chartView.setZoomEnabled(true); chartView.setValueSelectionEnabled(true); chartView2.setZoomEnabled(true); chartView2.setValueSelectionEnabled(true); chartView3.setZoomEnabled(true); chartView3.setValueSelectionEnabled(true); // Create a line chart from Field1 of ThinkSpeak Channel 9 tsChart = new ThingSpeakLineChart(566541, 1); tsChart2 = new ThingSpeakLineChart(566541,2); tsChart3 = new ThingSpeakLineChart(566541,3); // Get 200 entries at maximum tsChart.setNumberOfEntries(50); // Set value axis labels on 10-unit interval tsChart.setValueAxisLabelInterval(8); // Set date axis labels on 5-minute interval tsChart.setDateAxisLabelInterval(-2); // Show the line as a cubic spline tsChart.useSpline(false); // Set the line color tsChart.setLineColor(Color.parseColor("#D32F2F")); // Set the axis color tsChart.setAxisColor(Color.parseColor("#455a64")); // Set the starting date (5 minutes ago) for the default viewport of the chart tsChart.setChartStartDate(calendar.getTime()); // Set listener for chart data update tsChart.setListener(new ThingSpeakLineChart.ChartDataUpdateListener() { @Override public void onChartDataUpdated(long channelId, int fieldId, String title, LineChartData lineChartData, Viewport maxViewport, Viewport initialViewport) { // Set chart data to the LineChartView chartView.setLineChartData(lineChartData); // Set scrolling bounds of the chart chartView.setMaximumViewport(maxViewport); // Set the initial chart bounds chartView.setCurrentViewport(initialViewport); } }); // Load chart data asynchronously tsChart.loadChartData(); tsChart2.setNumberOfEntries(30); // Set value axis labels on 10-unit interval tsChart2.setValueAxisLabelInterval(10); // Set date axis labels on 5-minute interval tsChart2.setDateAxisLabelInterval(10); // Show the line as a cubic spline tsChart2.useSpline(false); // Set the line color tsChart2.setLineColor(Color.parseColor("#D32F2F")); // Set the axis color tsChart2.setAxisColor(Color.parseColor("#455a64")); // Set the starting date (5 minutes ago) for the default viewport of the chart tsChart2.setChartStartDate(calendar.getTime()); // Set listener for chart data update tsChart2.setListener(new ThingSpeakLineChart.ChartDataUpdateListener() { @Override public void onChartDataUpdated(long channelId, int fieldId, String title, LineChartData lineChartData, Viewport maxViewport, Viewport initialViewport) { // Set chart data to the LineChartView chartView2.setLineChartData(lineChartData); // Set scrolling bounds of the chart chartView2.setMaximumViewport(maxViewport); // Set the initial chart bounds chartView2.setCurrentViewport(initialViewport); } }); // Load chart data asynchronously tsChart2.loadChartData(); tsChart3.setNumberOfEntries(30); // Set value axis labels on 10-unit interval tsChart3.setValueAxisLabelInterval(2); // Set date axis labels on 5-minute interval tsChart3.setDateAxisLabelInterval(10); // Show the line as a cubic spline tsChart3.useSpline(false); // Set the line color tsChart3.setLineColor(Color.parseColor("#D32F2F")); // Set the axis color tsChart3.setAxisColor(Color.parseColor("#455a64")); // Set the starting date (5 minutes ago) for the default viewport of the chart tsChart3.setChartStartDate(calendar.getTime()); // Set listener for chart data update tsChart3.setListener(new ThingSpeakLineChart.ChartDataUpdateListener() { @Override public void onChartDataUpdated(long channelId, int fieldId, String title, LineChartData lineChartData, Viewport maxViewport, Viewport initialViewport) { // Set chart data to the LineChartView chartView3.setLineChartData(lineChartData); // Set scrolling bounds of the chart chartView3.setMaximumViewport(maxViewport); // Set the initial chart bounds chartView3.setCurrentViewport(initialViewport); } }); // Load chart data asynchronously tsChart3.loadChartData(); } } Thank you for everyone
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