android-graphview

问题 I wanted to plot real time data via http://www.android-graphview.org/ for data acquired in a Bluetooth thread. Thread code: InputStream tmpIn = mSocket.getInputStream(); while (true) { try { BufferedReader r = new BufferedReader(new InputStreamReader(tmpIn)); String line; while ((line = r.readLine()) != null) { final String tmp = line; runOnUiThread(new Runnable() { @Override public void run() { addData(Integer.parseInt(tmp)); } }); } } catch (IOException e) { Log.e("BT", "BtConnectionThread

问题 I am creating sound meter app in android I want to show values in line graph on real time anyone please tell me how I can do it? 回答1: For time operations please see android.text.format.Time http://developer.android.com/reference/android/text/format/Time.html This is official sample code from there: Time time = new Time(); time.set(4, 10, 2007); // set the date to Nov 4, 2007, 12am time.normalize(false); // this sets isDst = 1 time.monthDay += 1; // changes the date to Nov 5, 2007, 12am millis

问题 I am using GraphView Android Library to plot the data of Light Sensor of my Smartphone. The Y-values of the resulting Graph are correct but the Graph cannot plot the floating point values of the X-axis which is the time in milliseconds at which it gets the reading. It truncates the fractional part of the valueand plots only agains the values 1,2,3... which doesn't give the realtime look to the graph. Here's my code to get data from the Sensor: @Override public void onSensorChanged(SensorEvent

问题 When trying to create a line graph with the graph-view library in android studio part of the numbers on the vertical line are being cut out.Does anybody know how to fix this? <com.jjoe64.graphview.GraphView android:layout_width="300dp" android:layout_height="200dip" android:id="@+id/graph" android:layout_centerVertical="true" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_gravity="center_horizontal" android:nestedScrollingEnabled="false" /> final

问题 i found i great library to draw graphs. I want to create one that displays in the x axis the time and in y the battery percentage. My goal is create a graph like this: You can see the percentage on the left and the date/time on bottom. Starting from this example code : https://github.com/jjoe64/GraphView-Demos/blob/master/src/com/jjoe64/graphviewdemos/CustomLabelFormatterActivity.java i want insert the correct data but i never used graphs. This is the activity public class

问题 I am trying to incorporate Android GraphView project into my app and all the time I have some strange problem with it. My app requires drawing graph from real time data. I have thread with all the communication that is providing the data. In main thread I am reading this data and simply use mSeries1.appendData(new DataPoint(counter,data[0]),true,100); where counter is int that is incremented after each update. Unfortunately at some point it freeze. I've tried putting it in synchronized block

问题 I just want to show only X Y axes and labels on these axes and don't want to show grid lines in Android GraphView . How can I do that? Thanks in advance. 回答1: I believe the following call should do the trick : your_graph.getGridLabelRenderer().setGridStyle( GridLabelRenderer.GridStyle.NONE ); Please do note I haven't tested the above call :) 回答2: If you use this all the grid lines will be Removed your_graph.getGridLabelRenderer().setGridStyle( GridLabelRenderer.GridStyle.NONE ); For Setting

问题 I have the following function, well it is the formula of the normal distribution and my goal is to graph it using the GraphView library. Well, I have the following: Id -- plot code kotlin class ExampleActivity : AppCompatActivity() { lateinit var series1: LineGraphSeries<DataPoint> override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_example) series1 = LineGraphSeries<DataPoint>() val media = 8.0 val sd = 2.0 fun linspace

问题 I'm trying to plot the data in a GraphView while plotting I'm getting some extra line starting of the graph. Ihe package I'm using com.jjoe64.graphview.GraphView My code is : public class ABIModeActivity extends AppCompatActivity { private LineGraphSeries<DataPoint> mSeries2; private double graph2LastXValue = 5d; static GraphView graph2; Context context; Button okbutton; CountDownTimer cTimer = null; int i=0; int[] BP_Data=new int[]{115,115,115,115,115,115,115,115,115,115,115,115,115,115,115

问题 I am trying out the GraphView Library for creating charts on Android. It looks quite decent, but I am wondering if there is a way to add some space between the tick labels and the graph itself. As you can see, there is basically none: I use the following code to set up the graph (very similar to the example): GraphView graph = (GraphView)view.findViewById(R.id.graph); LineGraphSeries<DataPoint> series = new LineGraphSeries<DataPoint>(new DataPoint[] { new DataPoint(0, 1), new DataPoint(1, 5),