我在 android 中学习 Pie AChartEngine，我想尝试在 ScrollView 中添加一些 pie。但这没有滚动...如何解决？
这是我的 xml
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/general" >
<TextView
android:id="@+id/tv_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="@string/str_tv_title" />
<LinearLayout
android:id="@+id/chart_container"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</LinearLayout>
</ScrollView>
这个java
private void openChart(){
// Pie Chart Slice Names
code = new String[] {
"Eclair & Older", "Froyo", "Gingerbread", "Honeycomb",
"IceCream Sandwich", "Jelly Bean"
};
// Pie Chart Slice Values
double[] distribution = { 3.9, 12.9, 55.8, 1.9, 23.7, 1.8 } ;
// Color of each Pie Chart Slices
int[] colors = { Color.BLUE, Color.MAGENTA, Color.GREEN, Color.CYAN, Color.RED,
Color.YELLOW };
DisplayMetrics metrics = getBaseContext().getResources().getDisplayMetrics();
float val = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, 18, metrics);
// Instantiating CategorySeries to plot Pie Chart
CategorySeries distributionSeries = new CategorySeries(" Android version distribution as on October 1, 2012");
for(int i=0 ;i < distribution.length;i++){
// Adding a slice with its values and name to the Pie Chart
distributionSeries.add(code[i], distribution[i]);
}
// Instantiating a renderer for the Pie Chart
DefaultRenderer defaultRenderer = new DefaultRenderer();
for(int i = 0 ;i<distribution.length;i++){
// Instantiating a render for the slice
SimpleSeriesRenderer seriesRenderer = new SimpleSeriesRenderer();
seriesRenderer.setColor(colors[i]);
seriesRenderer.setDisplayChartValues(true);
// Adding the renderer of a slice to the renderer of the pie chart
defaultRenderer.addSeriesRenderer(seriesRenderer);
}
defaultRenderer.setChartTitle("Android version distribution as on October 1, 2012 ");
defaultRenderer.setChartTitleTextSize(20);
defaultRenderer.setZoomButtonsVisible(true);
defaultRenderer.setLabelsTextSize(val);
// Getting a reference to view group linear layout chart_container
LinearLayout chartContainer = (LinearLayout) findViewById(R.id.chart_container);
// Getting PieChartView to add to the custom layout
mChart = ChartFactory.getPieChartView(getBaseContext(), distributionSeries, defaultRenderer);
defaultRenderer.setClickEnabled(true);
defaultRenderer.setZoomEnabled(true);
defaultRenderer.setSelectableBuffer(10);
defaultRenderer.setApplyBackgroundColor(true);
defaultRenderer.setBackgroundColor(Color.argb(100, 50, 50, 50));
defaultRenderer.setChartTitleTextSize(20);
defaultRenderer.setLabelsTextSize(20);
defaultRenderer.setLegendTextSize(20);
defaultRenderer.setZoomButtonsVisible(false);
defaultRenderer.setInScroll(true);
defaultRenderer.setStartAngle(90);
defaultRenderer.setPanEnabled(true);
mChart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SeriesSelection seriesSelection = mChart.getCurrentSeriesAndPoint();
if (seriesSelection != null) {
// Getting the name of the clicked slice
int seriesIndex = seriesSelection.getPointIndex();
String selectedSeries="";
selectedSeries = code[seriesIndex];
// Getting the value of the clicked slice
double value = seriesSelection.getXValue();
DecimalFormat dFormat = new DecimalFormat("#.#");
// Displaying the message
Toast.makeText(
getBaseContext(),
selectedSeries + " : " + Double.valueOf(dFormat.format(value)) + " % " ,
Toast.LENGTH_SHORT).show();
}
}
});
// Adding the pie chart to the custom layout
chartContainer.addView(mChart);
}
我在 ScrollView中添加了android:fillViewport="true"并且添加了defaultRenderer.setInScroll(true); 在java中也是如此，但它不起作用......
我希望任何人都可以帮助我。对不起，如果我的英语不好...