在我的项目中，我必须将活动添加到 Tabhost。其中一个活动是 InventoryView。当它被加载到 tabHost 时，会发生堆栈溢出错误和基本字节缓冲区错误。我不知道如何解决它。如果有人知道，请帮助我。
编码：
public class **TabActivityView** extends TabActivity
{
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.listmonth);
Resources res = getResources(); // Resource object to get Drawables
TabHost tabHost = getTabHost(); // The activity TabHost
Intent intent = new Intent(this,InventoryView.class);
tabHost.addTab(tabHost // Error Occur While it is Set.
.newTabSpec("Week")
.setIndicator("Weekly", res.getDrawable(R.drawable.ic_tab_main))
.setContent(intent));
}
}
在 Inventory 类中包含：
package com.experts.IVScreen;
import com.experts.clssfile.*;
import java.util.Calendar;
import android.content.Intent;
import com.experts.IVScreen.R;
import android.app.Activity;
import android.database.sqlite.SQLiteDatabase;
import android.database.Cursor;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.*;
import android.widget.AdapterView.OnItemSelectedListener;
public class InventoryView extends Activity{
public String spintext;
GetDetails gt = new GetDetails();
Databasecreation db = new Databasecreation();
String query;
GridView list_disp=null;
DatePicker sel_date;
TextView disp_amt, date_text;
Button btnDwnchart, btnDwnOk, btnDwnCancel;
public int focus;
ImageView btnNext, btnPre=null;
SQLiteDatabase dbase;
public StringBuffer buff = null;
String mylog="Invent";
public String str;
public String doentry;
int tot_amt;
public int iSelectedMonth;
public String month[]={"January","February","March","April","May","June","July",
"August","September","October","November","December"};
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.listviewinvent);
dbase = db.getdb();
Calendar csCalendar = Calendar.getInstance();
iSelectedMonth = csCalendar.get(Calendar.MONTH);
Spinner mon_spin=(Spinner)findViewById(R.id.Spin_year);
list_disp = (GridView)findViewById(R.id.gridView1);
btnDwnchart = (Button) findViewById(R.id.btnChart);
disp_amt = (TextView)findViewById(R.id.dispTotAmt);
btnNext = (ImageView)findViewById(R.id.imageView1);
btnPre = (ImageView)findViewById(R.id.imageView2);
date_text = (TextView)findViewById(R.id.textView1);
ArrayAdapter NoCoreAdapter = new ArrayAdapter(this,android.R.layout.simple_spinner_item, month);
NoCoreAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mon_spin.setAdapter(NoCoreAdapter);
mon_spin.setOnItemSelectedListener(new MyOnItemSelectedListener());
date_text.setText(month[iSelectedMonth]);
tot_amt = gt.getMonthlist(0,null, iSelectedMonth);
dis_grid(tot_amt);
btnDwnchart.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
Intent intent = null;
intent = new Intent(InventoryView.this,NewChart.class);
startActivity(intent);
}
});
}
public void btnDwnNext(View v)
{
if (iSelectedMonth < 11)
{
iSelectedMonth++;
}
else
{
iSelectedMonth = 0;
}
date_text.setText(""+month[iSelectedMonth]);
tot_amt = gt.getMonthlist(0,null, iSelectedMonth);
dis_grid(tot_amt);
}
public void btnDwnPre(View v)
{
if (iSelectedMonth > 0)
{
iSelectedMonth--;
}
else
{
iSelectedMonth = 11;
}
date_text.setText(""+month[iSelectedMonth]);
tot_amt=gt.getMonthlist(0,null, iSelectedMonth);
dis_grid(tot_amt);
}
public void dis_grid(int total)
{
String query1 = "Select DOENTRY1,NETAMOUNT1 as _id from Invent_Month";
Cursor mon = dbase.rawQuery(query1, null);
mon.moveToFirst();
startManagingCursor(mon);
SimpleCursorAdapter ada = new SimpleCursorAdapter(this, R.layout.showlist,
mon, new String[] { "DOENTRY1", "_id" }, new int[] { R.id.Entry,R.id.sales });
list_disp.setAdapter(ada);
String convert = String.valueOf(total);
disp_amt.setText(convert);
}
public class MyOnItemSelectedListener implements OnItemSelectedListener
{
public void onItemSelected(AdapterView<?> parent,View view, int pos, long id)
{
spintext=parent.getItemAtPosition(pos).toString();
/*Toast.makeText(parent.getContext(), "The planet is " +
parent.getItemAtPosition(pos).toString(), Toast.LENGTH_LONG).show();*/
}
public void onNothingSelected(AdapterView parent)
{
// Do nothing.
}
}
}
原木猫：
06-15 16:26:27.328: E/AndroidRuntime(320): FATAL EXCEPTION: main
06-15 16:26:27.328: E/AndroidRuntime(320): java.lang.StackOverflowError
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.ByteBuffer.<init>(ByteBuffer.java:128)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.BaseByteBuffer.<init>(BaseByteBuffer.java:26)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.HeapByteBuffer.<init>(HeapByteBuffer.java:49)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.HeapByteBuffer.<init>(HeapByteBuffer.java:41)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.ReadWriteHeapByteBuffer.<init>(ReadWriteHeapByteBuffer.java:43)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.BufferFactory.newByteBuffer(BufferFactory.java:38)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.ByteBuffer.wrap(ByteBuffer.java:82)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.charset.CharsetEncoder.isLegalReplacement(CharsetEncoder.java:646)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.charset.CharsetEncoder.replaceWith(CharsetEncoder.java:752)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.charset.CharsetEncoder.<init>(CharsetEncoder.java:184)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.ibm.icu4jni.charset.CharsetEncoderICU.<init>(CharsetEncoderICU.java:75)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.ibm.icu4jni.charset.CharsetICU.newEncoder(CharsetICU.java:74)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.charset.Charset.encode(Charset.java:692)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.nio.charset.Charset.encode(Charset.java:713)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.io.File.newCString(File.java:214)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.io.File.init(File.java:205)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.io.File.<init>(File.java:175)
06-15 16:26:27.328: E/AndroidRuntime(320): at java.io.File.<init>(File.java:142)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.experts.IVScreen.Databasecreation.createDirIfNotExists(Databasecreation.java:67)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.experts.IVScreen.Databasecreation.getExternalStorageSdCard(Databasecreation.java:34)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.experts.IVScreen.Databasecreation.<init>(Databasecreation.java:21)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.experts.clssfile.GetDetails.<init>(GetDetails.java:19)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.experts.IVScreen.WeekActivity.<init>(WeekActivity.java:22)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.experts.clssfile.GetDetails.<init>(GetDetails.java:20)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.experts.IVScreen.WeekActivity.<init>(WeekActivity.java:22)
06-15 16:26:27.328: E/AndroidRuntime(320): at com.experts.clssfile.GetDetails.<init>(GetDetails.java:20)