我正在尝试使用AChartEngine库在网格视图中创建条形图和饼图。
在第一个活动中，我有一个标签主持人。在此选项卡主机的内容中，对于第一个选项卡，我已定义了网格视图。作为此网格视图的内容，我已经定义了标记为图表的相对布局。当我在调用ChartFactory后获得图表的视图时，我会将此视图添加到布局中。但是，当我在网格视图中执行此操作时，我会遇到异常。请帮忙。我的代码如下：
TabHost.xml
<TabHost
android:id="@android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingTop="5dp" >
<TabWidget
android:id="@android:id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</TabWidget>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="5dp"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:paddingTop="5dp" >
<LinearLayout
android:id="@+id/tab1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#222930" >
<!--
<android.support.v4.view.ViewPager
android:id="@+id/viewpager1"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
-->
<GridView
android:id="@+id/gridview1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:horizontalSpacing="15dp"
android:numColumns="1"
android:scrollbars="none"
android:verticalSpacing="15dp" />
</LinearLayout>
</FrameLayout>
</LinearLayout>
</TabHost>
</FrameLayout>
grid_view_description.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/chart_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<RelativeLayout
android:id="@+id/chart"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</RelativeLayout>
<TextView
android:id="@+id/no_graph"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true" />
</RelativeLayout>
TabHostActivity.java
public class GraphDisplay extends TabActivity implements OnTabChangeListener {
View tabView;
TabHost tabHost;
private Context tabContext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_graph_display);
tabContext = this;
initTabs();
}
private void initTabs() {
tabHost = (TabHost) findViewById(android.R.id.tabhost);
tabHost.setup();
tabHost.addTab(createTab("First", "First", R.id.tab1));
tabHost.addTab(createTab("Second", "Second", R.id.tab2));
tabHost.addTab(createTab("Third", "Third", R.id.tab3));
tabHost.setCurrentTab(0);
initPager("First");
tabHost.setOnTabChangedListener(this);
}
private void initPager(String spec) {
GridLayouts l = null;
int view = 0;
ViewStub stub = null;
if ("Daily".equals(spec)) {
Log.d("third", "inside dailly equals");
l = GridLayouts.LDaily;
// ViewPager dayPager = (ViewPager) findViewById(R.id.viewpager1);
GridView dayPager = (GridView) findViewById(R.id.gridview1);
new GetMeGraph(tabContext, "Day", l, dayPager).callAsync();
}
}
private TabSpec createTab(final String tag, final String title, final int id) {
final View tab = LayoutInflater.from(getTabHost().getContext())
.inflate(R.layout.tab_title_customize, null);
((TextView) tab.findViewById(R.id.tab_text)).setText(title);
ImageView image = (ImageView) tab.findViewById(R.id.tab_icon);
if (tag.equals("First")) {
image.setBackgroundResource(R.drawable.day);
} else if (tag.equals("Second")) {
image.setBackgroundResource(R.drawable.month);
} else if (tag.equals("Third")) {
image.setBackgroundResource(R.drawable.hourb);
}
return getTabHost().newTabSpec(tag).setIndicator(tab).setContent(id);
}
@Override
public void onTabChanged(String arg0) {
// setTabColor(tabHost);
if ("Daily" == arg0) {
tabHost.setCurrentTab(0);
// ((ViewStub) findViewById(R.id.tab1stub)).inflate();
initPager("Daily");
}
}
}
GridViewAdapter.java
public class GraphGirdAdapter extends BaseAdapter {
private GraphicalView chart[];
enum GridLayouts {
LMonthly(new int[] { R.layout.activity_piegraph_usage_display,
R.layout.activity_bargraph_usage_display }), LDaily(new int[] {
R.layout.activity_piegraph_usage_display,
R.layout.activity_bargraph_usage_display }), LHourly(
new int[] { R.layout.activity_piegraph_usage_display });
final int[] layouts;
GridLayouts(int[] layouts) {
this.layouts = layouts;
Log.d("first", "init: " + this);
}
}
private Context cxt;
private final GridLayouts layouts;
public GraphGirdAdapter(Context context, GridLayouts layouts,
GraphicalView[] chartView) {
cxt = context;
this.layouts = layouts;
chart = chartView;
Log.d("third", "use: " + this.layouts);
}
@Override
public int getCount() {
return layouts.layouts.length;
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = View.inflate(cxt, layouts.layouts[position], null);
RelativeLayout layout = (RelativeLayout) view
.findViewById(R.id.chart);
if (chart != null) {
layout.addView(chart[position]);
} else {
TextView noData = (TextView) view.findViewById(R.id.no_graph);
noData.setText("Insufficient data to plot the graph");
}
Log.d("third", "inside instantiate: " + layouts.layouts[position]);
return view;
}
}
崩溃报告：
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.addViewInner(ViewGroup.java:3351)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.addView(ViewGroup.java:3222)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.addView(ViewGroup.java:3179)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.addView(ViewGroup.java:3159)
02-10 13:08:14.509: E/AndroidRuntime(7185): at com.aws.datameter.GraphGirdAdapter.getView(GraphGirdAdapter.java:77)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.AbsListView.obtainView(AbsListView.java:2431)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.GridView.makeAndAddView(GridView.java:1323)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.GridView.makeRow(GridView.java:328)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.GridView.fillDown(GridView.java:281)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.GridView.fillFromTop(GridView.java:403)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.GridView.layoutChildren(GridView.java:1215)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.AbsListView.onLayout(AbsListView.java:2282)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.View.layout(View.java:11420)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.layout(ViewGroup.java:4238)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.View.layout(View.java:11420)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.layout(ViewGroup.java:4238)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1644)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1502)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.LinearLayout.onLayout(LinearLayout.java:1415)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.View.layout(View.java:11420)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.layout(ViewGroup.java:4238)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.View.layout(View.java:11420)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.layout(ViewGroup.java:4238)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.View.layout(View.java:11420)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.layout(ViewGroup.java:4238)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.View.layout(View.java:11420)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.layout(ViewGroup.java:4238)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1644)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1502)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.LinearLayout.onLayout(LinearLayout.java:1415)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.View.layout(View.java:11420)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.layout(ViewGroup.java:4238)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.View.layout(View.java:11420)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewGroup.layout(ViewGroup.java:4238)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1671)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2628)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.os.Handler.dispatchMessage(Handler.java:99)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.os.Looper.loop(Looper.java:137)
02-10 13:08:14.509: E/AndroidRuntime(7185): at android.app.ActivityThread.main(ActivityThread.java:4517)
02-10 13:08:14.509: E/AndroidRuntime(7185): at java.lang.reflect.Method.invokeNative(Native Method)
02-10 13:08:14.509: E/AndroidRuntime(7185): at java.lang.reflect.Method.invoke(Method.java:511)
02-10 13:08:14.509: E/AndroidRuntime(7185): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
02-10 13:08:14.509: E/AndroidRuntime(7185): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760)
02-10 13:08:14.509: E/AndroidRuntime(7185): at dalvik.system.NativeStart.main(Native Method)
首先，我尝试在View Pager中实现图表。但是当我将滚动条引入条形图时，View Pager覆盖了OnTouch事件时变得一团糟。任何这些解决方案都会很棒。