我想在表中动态添加15列。我得到ArithmeticException：除以零和tablelayout.mutateColumnsWidth。当我运行应用程序时它崩溃了。 请有人帮帮我。感谢您的光临。
记录错误信息
07-11 12:58:05.530: E/AndroidRuntime(1264): FATAL EXCEPTION: main
07-11 12:58:05.530: E/AndroidRuntime(1264): java.lang.ArithmeticException: divide by zero
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.widget.TableLayout.mutateColumnsWidth(TableLayout.java:579)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.widget.TableLayout.shrinkAndStretchColumns(TableLayout.java:568)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.widget.TableLayout.measureVertical(TableLayout.java:466)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.widget.TableLayout.onMeasure(TableLayout.java:431)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.view.View.measure(View.java:8313)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:581)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:365)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.view.View.measure(View.java:8313)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.widget.FrameLayout.onMeasure(FrameLayout.java:250)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.view.View.measure(View.java:8313)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.widget.FrameLayout.onMeasure(FrameLayout.java:250)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.view.View.measure(View.java:8313)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.view.ViewRoot.performTraversals(ViewRoot.java:839)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.view.ViewRoot.handleMessage(ViewRoot.java:1859)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.os.Handler.dispatchMessage(Handler.java:99)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.os.Looper.loop(Looper.java:123)
07-11 12:58:05.530: E/AndroidRuntime(1264): at android.app.ActivityThread.main(ActivityThread.java:3683)
07-11 12:58:05.530: E/AndroidRuntime(1264): at java.lang.reflect.Method.invokeNative(Native Method)
07-11 12:58:05.530: E/AndroidRuntime(1264): at java.lang.reflect.Method.invoke(Method.java:507)
07-11 12:58:05.530: E/AndroidRuntime(1264): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
07-11 12:58:05.530: E/AndroidRuntime(1264): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
07-11 12:58:05.530: E/AndroidRuntime(1264): at dalvik.system.NativeStart.main(Native Method)
在Log cat中打印我的所有val之后我得到了Exception。
07-11 17:37:36.213: E/rows(410): = 1
07-11 17:37:36.213: E/cols(410): = 5
07-11 17:37:36.213: E/11111(410): 11111
07-11 17:37:36.213: E/222222(410): 222222
07-11 17:37:36.223: I/System.out(410): strText drhgft
07-11 17:37:36.223: I/System.out(410): strText 2014
07-11 17:37:36.223: I/System.out(410): strText
07-11 17:37:36.223: I/System.out(410): strText 3.8
07-11 17:37:36.234: I/System.out(410): strText
07-11 17:37:36.234: E/3333333(410): 3333333
07-11 17:37:36.244: E/4444444(410): 4444444
07-11 17:37:36.244: E/55555555(410): 55555555
这是我的Full类源代码
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.performance_report);
table_layout = (TableLayout) findViewById(R.id.tableLayout_PerformanceReport);
BuildTable();
}
private void BuildTable()
{
String performanceQuery ="select performer_name,year"
+","
+"(case when second_date='June' then ((performance_rate_one+performance_rate_two+performance_rate_three+performance_rate_four+performance_rate_five)/5) end) June"
+","
+"(case when second_date='July' then ((performance_rate_one+performance_rate_two+performance_rate_three+performance_rate_four+performance_rate_five)/5) end) July"
+","
+"(case when second_date='August' then ((performance_rate_one+performance_rate_two+performance_rate_three+performance_rate_four+performance_rate_five)/5) end) August"
+" from performance"
+" group by empid"
+" order by empid";
SQLiteDatabase sqlDatabase = databaseHelper.getWritableDatabase();
Cursor c1 =sqlDatabase.rawQuery(performanceQuery , null);
int rows = c1.getCount();
Log.e("rows "," = " + rows);
int cols = c1.getColumnCount();
Log.e("cols "," = " + cols);
if (c1 != null && c1.getCount() != 0)
{
Log.e("11111","11111");
if (c1.moveToFirst())
{
Log.e("222222","222222");
// outer for loop
for (int i = 0; i < rows; i++)
{
TableRow row = new TableRow(this);
row.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT));
// inner for loop
for (int j = 0; j < cols; j++)
{
TextView tv = new TextView(this);
tv.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
tv.setBackgroundResource(R.drawable.cell_shape);
tv.setPadding(5, 5, 5, 5);
tv.setText(c1.getString(j));
String strText = tv.getText().toString().trim();
System.out.println(" strText " + strText);
row.addView(tv);
}
Log.e("3333333","3333333");
c1.moveToNext();
Log.e("4444444","4444444");
table_layout.addView(row);
}
sqlDatabase.close();
c1.close();
Log.e("55555555","55555555");
}
}
}
}
答案 0 :(得分：5)
检查您的LayoutParams类型，如果您将观看次数置于TableRow，则应使用TableRow.LayoutParams，并在放入TableLayout.LayoutParams时使用TableLayout。