1
在當前活動中,我打印上一活動中所選股票收盤價的圖(使用Androidplot)。
在這個活動中,我有一個用戶可以覆蓋的指標列表的微調。
現在我想要使用微調器中的這個新選擇來重繪圖。
我嘗試刷新/重新加載頁面onItemSelected,但這會導致頁面保持刷新,即使不等待用戶輸入。根據Spinner中選擇的項目更新活動
public class DispGraph extends Activity {
private XYPlot plotstock;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.graph);
// PRINTING SELECTED STOCK_NAME
Bundle bundle = getIntent().getExtras();
String sname = bundle.getString("SN");
TextView t = (TextView) findViewById(R.id.textView1);
t.setText(sname);
// INDICATOR LIST
Spinner spinner = (Spinner) findViewById(R.id.spinner1);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
this, R.array.Indicators, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
String iname = spinner.getSelectedItem().toString();
spinner.setOnItemSelectedListener(new OnItemSelectedListener(){
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
startActivity(getIntent());
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}});
//PASSING STOCK-TICKER & INDICATOR TO PHP
// PLOTTING GRAPH
plotstock = (XYPlot) findViewById(R.id.mySimpleXYPlot);
Number[] series1Numbers = ind;
Number[] series2Numbers = closing;
XYSeries series1 = new SimpleXYSeries(Arrays.asList(series1Numbers),SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, iname);
XYSeries series2 = new SimpleXYSeries(Arrays.asList(series2Numbers),SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Closing Price");
plotstock.setDomainLabel("Date");
plotstock.setRangeLabel("Price");
plotstock.addSeries(series1,new LineAndPointFormatter(Color.rgb(0, 200, 0), Color.rgb(0,100, 0), null, new PointLabelFormatter(Color.TRANSPARENT)));
plotstock.addSeries(series2,new LineAndPointFormatter(Color.rgb(0, 0, 200), Color.rgb(0, 0, 100),null, new PointLabelFormatter(Color.TRANSPARENT)));
plotstock.setTicksPerRangeLabel(2);
}
}
我已經嘗試過。它仍然顯示第一個選中的'iname'(指標)和相同的圖表。 – OnDroid 2013-04-11 15:03:16
你不改變你的iname變量。嘗試在onItemSelected方法內。 'iname = arg0.getItemAtPosition(arg2).toString()' – 2013-04-11 18:01:09
嘿謝謝人,但這並沒有真正的工作,我只是做了一個彈出列表視圖。 – OnDroid 2013-04-17 17:16:16