我正在创建一个条形图，但遇到了在平板电脑上切断x轴标签的问题。附件是手机上的正确布局和平板电脑上的错误布局。
是否有人知道平板电脑上出现此问题的原因以及如何解决此问题？
手机布局
https://drive.google.com/file/d/0B4CxFPSlLEYpdGZCMm8xdGZHTlk/edit?usp=sharing
平板电脑布局
https://drive.google.com/file/d/0B4CxFPSlLEYpakx1WFo3cGhNSTg/edit?usp=sharing
这是我创建条形图的代码。
布局文件
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.usage.bigpondpro.MainActivity$PlaceholderFragment"
android:id="@+id/svDailyContainter" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<com.androidplot.xy.XYPlot
android:id="@+id/dailyXYPlot"
android:layout_width="match_parent"
android:layout_height="match_parent"
androidPlot.title="Sample Bar Graph"
androidPlot.titleWidget.labelPaint.textSize="@dimen/title_font_size"
androidPlot.graphWidget.marginTop="20dp"
androidPlot.graphWidget.marginLeft="10dp"
androidPlot.graphWidget.marginBottom="20dp"
androidPlot.graphWidget.marginRight="10dp"
androidPlot.rangeLabelWidget.labelPaint.textSize="@dimen/range_label_font_size"
androidPlot.domainLabelWidget.labelPaint.textSize="@dimen/range_label_font_size"
/>
</LinearLayout>
</ScrollView>
活动
private void CreateGraph()
{
// initialize our XYPlot reference:
XYPlot plot = (XYPlot)this.findViewById(R.id.dailyXYPlot);
// Create
a couple arrays of y-values to plot:
Number[] series1Numbers = GenerateGraphValues();
// Turn the above arrays into XYSeries':
XYSeries series1 = new SimpleXYSeries(
Arrays.asList(series1Numbers), // SimpleXYSeries takes a List so turn our array into a List
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, // Y_VALS_ONLY means use the element index as the x value
"Series1"); // Set the display title of the series
BarFormatter series1Format = new BarFormatter(Color.rgb(51, 181, 229), Color.TRANSPARENT);
PointLabelFormatter plf = new PointLabelFormatter();
plf.getTextPaint().setTextSize(18);
plf.getTextPaint().setColor(Color.BLACK);
series1Format.setPointLabelFormatter(plf);
series1Format.setPointLabeler(new PointLabeler() {
DecimalFormat df = new DecimalFormat("##0.00");
public String getLabel(XYSeries series, int index) {
//need to check for null
if(series.getY(index) == null) return "";
return df.format(series.getY(index));
}
});
// add a new series' to the xyplot:
plot.addSeries(series1, series1Format);
//Y axis config
plot.setRangeLabel("Values"); //label
plot.setRangeBoundaries(0, 110, BoundaryMode.FIXED); //scale
plot.setRangeStep(XYStepMode.SUBDIVIDE, 5); //steps
plot.getGraphWidget().getRangeLabelPaint().setTextSize(26); //font size
DecimalFormat nf = new DecimalFormat("#0");
plot.setRangeValueFormat(nf);
//X Axs config
plot.setDomainLabel("Indexes");
plot.setDomainStep(XYStepMode.SUBDIVIDE, 25);
// plot.getGraphWidget().setDomainValueFormat(new GraphXLabelFormat());
plot.getGraphWidget().getDomainLabelPaint().setTextSize(18);
plot.getGraphWidget().setDomainLabelVerticalOffset(5);
//other config
plot.getLegendWidget().setVisible(false); //hide legend
plot.getGraphWidget().getDomainGridLinePaint().setColor(Color.TRANSPARENT); //hide grid lines
plot.getGraphWidget().getRangeGridLinePaint().setColor(Color.TRANSPARENT); //hide grid lines
plot.getGraphWidget().setGridPaddingLeft(40); //give some padding
plot.getGraphWidget().setGridPaddingRight(40); //give some padding
plot.getGraphWidget().getGridBackgroundPaint().setColor(Color.WHITE); //background color
plot.getTitleWidget().setPaddingTop(10); //give some padding
//set bar width
BarRenderer<?> renderer = (BarRenderer<?>) plot.getRenderer(BarRenderer.class);
renderer.setBarWidth(25);
//change x lable orientation
plot.getGraphWidget().setDomainLabelOrientation(-90);
//set graph height and width
/**
For some reason when the device is in landscape mode the entire graph canvas is blank.
Through trial and error if in landscape mode and the screen width is multiplied by 0.96 the graph and all it's data appear again.....why???
**/
DisplayMetrics displaymetrics = new DisplayMetrics();
((WindowManager) this.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getMetrics(displaymetrics);
int Width = (int) (displaymetrics.widthPixels * 0.96);
//default to portrait
LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, 750);
//need to check the orienation
if(IsLandscapeOrientation())
{
lp = new LayoutParams(Width, 560);
}
plot.setLayoutParams(lp);
}
private Number[] GenerateGraphValues()
{
int min = 30;
int max = 100;
int PlotPoints = 25;
Number[] series1Numbers = new Number[PlotPoints];
for(int x = 0; x < PlotPoints; x++){
Random r = new Random();
int randomNumber = r.nextInt(max - min + 1) + min;
series1Numbers[x] = randomNumber;
}
return series1Numbers;
}
private boolean IsLandscapeOrientation()
{
Display display = ((WindowManager) this.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
int rotation = display.getRotation();
boolean IsLandscape;
switch (rotation) {
case Surface.ROTATION_0:
case Surface.ROTATION_180:
IsLandscape = false;
break;
case Surface.ROTATION_90:
case Surface.ROTATION_270:
IsLandscape = true;
break;
default:
IsLandscape = true;
break;
}
return IsLandscape;
}
答案 0 :(得分：2)
问题似乎是图形小部件底部空间中的空间不足。如果将其添加到绘图的XML中：
androidPlot.graphWidget.marginBottom="100dp"
然后问题应该消失。 100dp可能是矫枉过正，所以你需要拨打它，但你明白了：）