我正在尝试使用library androidplot创建一些图表。我从源代码复制代码，但只有我看到的是黄色的蓝色屏幕。谁能告诉我有什么问题？ 这是代码：
package com.example.actionbartest;
import java.util.Arrays;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.graphics.DashPathEffect;
import android.graphics.Paint;
import android.os.Bundle;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import com.androidplot.series.XYSeries;
import com.androidplot.ui.AnchorPosition;
import com.androidplot.ui.DynamicTableModel;
import com.androidplot.ui.SizeLayoutType;
import com.androidplot.ui.SizeMetrics;
import com.androidplot.util.PaintUtils;
import com.androidplot.xy.AxisValueLabelFormatter;
import com.androidplot.xy.FillDirection;
import com.androidplot.xy.LineAndPointFormatter;
import com.androidplot.xy.RectRegion;
import com.androidplot.xy.SimpleXYSeries;
import com.androidplot.xy.XLayoutStyle;
import com.androidplot.xy.XPositionMetric;
import com.androidplot.xy.XYPlot;
import com.androidplot.xy.XYRegionFormatter;
import com.androidplot.xy.XYStepMode;
import com.androidplot.xy.YLayoutStyle;
import com.androidplot.xy.YValueMarker;
public class XYRegionExampleActivity extends Activity {
private static final int FONT_LABEL_SIZE = 13;
private XYPlot plot;
private final Number[] series1Numbers = {1, 4, 9, 9, 5, 2, 12};
private final Number[] series2Numbers = {5, 2, 3, 2, 17, 9, 1};
private final Number[] series3Numbers = {8, 9, 2, 1, 2, 1, 2};
private final Number[] series4Numbers = {2, 1, 1, 11, 6, 5, 7};
private LineAndPointFormatter lpFormatter1;
private LineAndPointFormatter lpFormatter2;
private LineAndPointFormatter lpFormatter3;
private LineAndPointFormatter lpFormatter4;
static final float PLOT_TITLE_FONT_SIZE_DP = 15;
static final float PLOT_DOMAIN_LABEL_FONT_SIZE_DP = 10;
static final float PLOT_RANGE_LABEL_FONT_SIZE_DP = 10;
static final float PLOT_TICK_LABEL_FONT_SIZE_DP = 10;
private XYSeries s1;
private XYSeries s2;
private XYSeries s3;
private XYSeries s4;
private RectRegion rr1;
private RectRegion rr2;
private RectRegion rr3;
private RectRegion rr4;
private RectRegion rr5;
private XYRegionFormatter rf1;
private XYRegionFormatter rf2;
private XYRegionFormatter rf3;
private XYRegionFormatter rf4;
private XYRegionFormatter rf5;
private CheckBox s1CheckBox;
private CheckBox s2CheckBox;
private CheckBox s3CheckBox;
private CheckBox s4CheckBox;
private CheckBox r1CheckBox;
private CheckBox r2CheckBox;
private CheckBox r3CheckBox;
private CheckBox r4CheckBox;
private CheckBox r5CheckBox;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.xyregion_example);
plot = (XYPlot) findViewById(R.id.xyRegionExamplePlot);
s1CheckBox = (CheckBox) findViewById(R.id.s1CheckBox);
s1CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
onS1CheckBoxClicked();
}
});
s2CheckBox = (CheckBox) findViewById(R.id.s2CheckBox);
s2CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
onS2CheckBoxClicked();
}
});
s3CheckBox = (CheckBox) findViewById(R.id.s3CheckBox);
s3CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
onS3CheckBoxClicked();
}
});
s4CheckBox = (CheckBox) findViewById(R.id.s4CheckBox);
s4CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
onS4CheckBoxClicked();
}
});
r1CheckBox = (CheckBox) findViewById(R.id.r1CheckBox);
r1CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
onCheckBoxClicked(r1CheckBox, lpFormatter1, rf1, rr1);
}
});
r2CheckBox = (CheckBox) findViewById(R.id.r2CheckBox);
r2CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
onCheckBoxClicked(r2CheckBox, lpFormatter1, rf2, rr2);
}
});
r3CheckBox = (CheckBox) findViewById(R.id.r3CheckBox);
r3CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
onCheckBoxClicked(r3CheckBox, lpFormatter2, rf3, rr3);
}
});
r4CheckBox = (CheckBox) findViewById(R.id.r4CheckBox);
r4CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
onCheckBoxClicked(r4CheckBox, lpFormatter2, rf4, rr4);
}
});
r5CheckBox = (CheckBox) findViewById(R.id.r5CheckBox);
r5CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
onCheckBoxClicked(r5CheckBox, lpFormatter2, rf5, rr5);
}
});
seriesSetup();
markerSetup();
axisLabelSetup();
regionSetup();
makePlotPretty();
//plot.disableAllMarkup();
}
private void onS1CheckBoxClicked() {
if(s1CheckBox.isChecked()) {
plot.addSeries(s1, lpFormatter1);
r1CheckBox.setEnabled(true);
r2CheckBox.setEnabled(true);
} else {
plot.removeSeries(s1);
r1CheckBox.setEnabled(false);
r2CheckBox.setEnabled(false);
}
plot.redraw();
}
private void onS2CheckBoxClicked() {
if(s2CheckBox.isChecked()) {
plot.addSeries(s2, lpFormatter2);
r3CheckBox.setEnabled(true);
r4CheckBox.setEnabled(true);
r5CheckBox.setEnabled(true);
} else {
plot.removeSeries(s2);
r3CheckBox.setEnabled(false);
r4CheckBox.setEnabled(false);
r5CheckBox.setEnabled(false);
}
plot.redraw();
}
private void onS3CheckBoxClicked() {
if(s3CheckBox.isChecked()) {
plot.addSeries(s3, lpFormatter3);
} else {
plot.removeSeries(s3);
}
plot.redraw();
}
private void onS4CheckBoxClicked() {
if(s4CheckBox.isChecked()) {
plot.addSeries(s4, lpFormatter4);
} else {
plot.removeSeries(s4);
}
plot.redraw();
}
/**
* Processes a check box event
* @param cb The checkbox event origin
* @param lpf LineAndPointFormatter with which rr and rf are to be added/removed
* @param rf The XYRegionFormatter with which rr should be rendered
* @param rr The RectRegion to add/remove
*/
private void onCheckBoxClicked(CheckBox cb, LineAndPointFormatter lpf,
XYRegionFormatter rf, RectRegion rr) {
if(cb.isChecked()) {
lpf.removeRegion(rr1);
} else {
lpf.addRegion(rr, rf);
}
}
/**
* Cleans up the plot's general layout and color scheme
*/
private void makePlotPretty() {
// use a 2x5 grid with room for 10 items:
plot.getLegendWidget().setTableModel(new DynamicTableModel(2, 5));
// add a semi-transparent black background to the legend
// so it's easier to see overlaid on top of our plot:
Paint bgPaint = new Paint();
bgPaint.setColor(Color.BLACK);
bgPaint.setStyle(Paint.Style.FILL);
bgPaint.setAlpha(140);
plot.getLegendWidget().setBackgroundPaint(bgPaint);
// adjust the padding of the legend widget to look a little nicer:
plot.getLegendWidget().setPadding(10, 1, 1, 1);
// adjust the legend size so there is enough room
// to draw the new legend grid:
plot.getLegendWidget().setSize(
new SizeMetrics(70, SizeLayoutType.ABSOLUTE, 80, SizeLayoutType.ABSOLUTE));
// reposition the grid so that it rests above the bottom-left
// edge of the graph widget:
plot.position(
plot.getLegendWidget(),
20,
XLayoutStyle.ABSOLUTE_FROM_RIGHT,
35,
YLayoutStyle.ABSOLUTE_FROM_BOTTOM,
AnchorPosition.RIGHT_BOTTOM);
// make our domain and range labels invisible:
plot.getDomainLabelWidget().setVisible(false);
plot.getRangeLabelWidget().setVisible(false);
plot.getGraphWidget().setRangeLabelHorizontalOffset(-1);
// add enough space to ensure range value labels arent cut off on the left/right:
plot.getGraphWidget().setRangeLabelWidth(25);
// add enough space to make sure domain value labels arent cut off on the bottom:
plot.getGraphWidget().setDomainLabelWidth(15);
plot.getGraphWidget().setDomainLabelVerticalOffset(-6);
plot.setBackgroundPaint(null);
plot.getGraphWidget().setBackgroundPaint(null);
plot.setBorderPaint(null);
plot.getGraphWidget().getGridBackgroundPaint().setColor(Color.WHITE);
Context ctx = getApplicationContext();
PaintUtils.setFontSizeDp(ctx,
plot.getDomainLabelWidget().getLabelPaint(), PLOT_DOMAIN_LABEL_FONT_SIZE_DP);
PaintUtils.setFontSizeDp(ctx,
plot.getRangeLabelWidget().getLabelPaint(), PLOT_RANGE_LABEL_FONT_SIZE_DP);
PaintUtils.setFontSizeDp(ctx,
plot.getGraphWidget().getRangeOriginLabelPaint(), PLOT_TICK_LABEL_FONT_SIZE_DP);
PaintUtils.setFontSizeDp(ctx,
plot.getGraphWidget().getRangeLabelPaint(), PLOT_TICK_LABEL_FONT_SIZE_DP);
PaintUtils.setFontSizeDp(ctx,
plot.getGraphWidget().getDomainOriginLabelPaint(), PLOT_TICK_LABEL_FONT_SIZE_DP);
PaintUtils.setFontSizeDp(ctx,
plot.getGraphWidget().getDomainLabelPaint(), PLOT_TICK_LABEL_FONT_SIZE_DP);
PaintUtils.setFontSizeDp(ctx,
plot.getTitleWidget().getLabelPaint(), PLOT_TITLE_FONT_SIZE_DP);
plot.getGraphWidget().getGridLinePaint().setPathEffect(new DashPathEffect(new float[]{1, 2, 1, 2}, 0));
plot.getTitleWidget().pack();
}
/*private void showS1() {
plot.addSeries(s1, lpFormatter1);
}*/
/*private void showS2() {
plot.addSeries(s2, lpFormatter2);
}*/
/*private void showS3() {
plot.addSeries(s3, lpFormatter3);
}*/
/*private void showS4() {
plot.addSeries(s4, lpFormatter4);
}*/
/**
* Create 4 XYSeries from the values defined above add add them to the plot.
* Also add some arbitrary regions.
*/
private void seriesSetup() {
// SERIES #1:
lpFormatter1 = new LineAndPointFormatter(
Color.rgb(100, 25, 20),
Color.rgb(4, 100, 88),
Color.rgb(66, 100, 3));
lpFormatter1.setFillPaint(null);
lpFormatter1.setVertexPaint(null);
lpFormatter1.getLinePaint().setShadowLayer(0, 0, 0, 0);
s1 = new SimpleXYSeries(Arrays.asList(series1Numbers),
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "S1");
plot.addSeries(s1, lpFormatter1);
// SERIES #2:
lpFormatter2 = new LineAndPointFormatter(
Color.rgb(100, 25, 200),
Color.rgb(114, 100, 88),
Color.rgb(66, 100, 200));
lpFormatter2.setFillPaint(null);
lpFormatter2.setVertexPaint(null);
lpFormatter2.getLinePaint().setShadowLayer(0, 0, 0, 0);
s2 = new SimpleXYSeries(Arrays.asList(series2Numbers),
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "S2");
plot.addSeries(s2, lpFormatter2);
// SERIES #3:
lpFormatter3 = new LineAndPointFormatter(
Color.rgb(200, 25, 200),
Color.rgb(200, 100, 88),
Color.rgb(66, 100, 100));
lpFormatter3.setFillPaint(null);
lpFormatter3.setVertexPaint(null);
lpFormatter3.getLinePaint().setShadowLayer(0, 0, 0, 0);
s3 = new SimpleXYSeries(Arrays.asList(series3Numbers),
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "S3");
plot.addSeries(s3, lpFormatter3);
// SERIES #4:
lpFormatter4 = new LineAndPointFormatter(
Color.rgb(220, 25, 20),
Color.rgb(4, 220, 88),
Color.rgb(1, 100, 225));
lpFormatter4.setFillPaint(null);
lpFormatter4.setVertexPaint(null);
lpFormatter4.getLinePaint().setShadowLayer(0, 0, 0, 0);
s4 = new SimpleXYSeries(Arrays.asList(series4Numbers),
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY,"S4");
plot.addSeries(s4, lpFormatter4);
plot.setTicksPerRangeLabel(3);
plot.setDomainStep(XYStepMode.INCREMENT_BY_VAL, 1);
}
/**
* Add some color coded regions to our axis labels.
*/
private void axisLabelSetup() {
plot.getGraphWidget().addRangeAxisValueLabelRegion(Double.NEGATIVE_INFINITY, 3, new AxisValueLabelFormatter(Color.RED));
plot.getGraphWidget().addRangeAxisValueLabelRegion(3, 7, new AxisValueLabelFormatter(Color.BLUE));
}
/**
* Add some markers to our plot.
*/
private void markerSetup() {
// the easy way to add a marker (uses default font color and positioning):
plot.addMarker(new YValueMarker(3, "Marker #1"));
// the comprehensive way:
plot.addMarker(new YValueMarker(
7, // y-val to mark
"Marker #2", // marker label
new XPositionMetric( // object instance to set text positioning on the marker
3, // 3 pixel positioning offset
XLayoutStyle.ABSOLUTE_FROM_LEFT // how/where the positioning offset is applied
),
Color.BLUE, // line paint color
Color.BLUE // text paint color
));
}
/**
* Add some fill regions to our series data
*/
private void regionSetup() {
// create a new region:
rf1 = new XYRegionFormatter(Color.RED);
// we want to create a vertical region so we set the minX/maxX values to
// negative and positive infinity repectively:
rr1 = new RectRegion(Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY, 0, 3, "R1");
// add the new region to the formatter for this series:
lpFormatter1.addRegion(rr1, rf1);
// and another region:
rf2 = new XYRegionFormatter(Color.BLUE);
rr2 = new RectRegion(Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY, 3, 7, "R2");
lpFormatter1.addRegion(rr2, rf2);
lpFormatter1.setFillDirection(FillDirection.RANGE_ORIGIN);
plot.setUserRangeOrigin(3);
// the next three regions are horizontal regions with minY/maxY
// set to negative and positive infinity respectively.
rf3 = new XYRegionFormatter(Color.GREEN);
rf4 = new XYRegionFormatter(Color.YELLOW);
rf5 = new XYRegionFormatter(Color.argb(130,255,0,0));
rr3 = new RectRegion(0, 2, Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY, "R3");
lpFormatter2.addRegion(rr3, rf3);
rr4 = new RectRegion(2, 4, Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY, "R4");
lpFormatter2.addRegion(rr4, rf4);
rr5 =new RectRegion(4, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY, "R5");
lpFormatter2.addRegion(rr5, rf5);
lpFormatter2.setFillDirection(FillDirection.RANGE_ORIGIN);
plot.setUserRangeOrigin(3);
}
}
和xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<com.androidplot.xy.XYPlot
android:id="@+id/xyRegionExamplePlot"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
title="XYRegion Example"
android:layout_weight="1"
/>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="center"
android:orientation="horizontal">
<CheckBox android:id="@+id/s1CheckBox"
android:text="S1"
android:checked="true"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
<CheckBox android:id="@+id/s2CheckBox"
android:text="S2"
android:checked="true"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
<CheckBox android:id="@+id/s3CheckBox"
android:text="S3"
android:checked="true"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
<CheckBox android:id="@+id/s4CheckBox"
android:text="S4"
android:checked="true"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
</LinearLayout>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="center"
android:orientation="horizontal">
<CheckBox android:id="@+id/r1CheckBox"
android:text="R1"
android:checked="true"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
<CheckBox android:id="@+id/r2CheckBox"
android:text="R2"
android:checked="true"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
<CheckBox android:id="@+id/r3CheckBox"
android:text="R3"
android:checked="true"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
<CheckBox android:id="@+id/r4CheckBox"
android:text="R4"
android:checked="true"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
<CheckBox android:id="@+id/r5CheckBox"
android:text="R5"
android:checked="true"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
</LinearLayout>
</LinearLayout>