[英]TextView arrays in TableLayout
I am wanting to do 4 columns with dynamically changing rows of data. 我想通过动态更改数据行来做4列。 I would do this with LinearLayout, but I cannot find a good way to get a 4x10 set of textviews. 我可以使用LinearLayout做到这一点,但是我找不到找到4x10文本视图集的好方法。 This .java is trowing a fatal error which is listed at the bottom: 该.java引发了致命错误,该错误在底部列出:
public class DebtList extends Activity {
Integer trigger = 5;
Double totalDebt = 0.00;
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.debtlist);
//Bundle extras = getIntent().getExtras();
String[] debtNames = new String[10];
Double[] debtAmount = new Double[10];
Double[] debtRate = new Double[10];
Double[] debtTerm = new Double[10];
Integer stopper = trigger+1;
TableLayout tl=(TableLayout)findViewById(R.id.debtlist);
TableRow tr1 = new TableRow(this);
TextView textview = new TextView(this);
for(int i=0; i<stopper; i++)
{
tr1.setLayoutParams(new LayoutParams( LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
tr1.setId(i);
textview.setText("" + i);
tr1.addView(textview);
tl.addView(tr1, new TableLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
tr1.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT));
tr1.setId(i);
}
trigger++;
}
}
I have a (basically) blank .XML to work with: 我有一个(基本上)空白的.XML要使用:
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/debtlist"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</TableLayout>
my LogCat: 我的LogCat:
10-13 04:12:07.412: E/AndroidRuntime(799): FATAL EXCEPTION: main
10-13 04:12:07.412: E/AndroidRuntime(799): java.lang.ClassCastException: android.app.ActionBar$LayoutParams cannot be cast to android.widget.LinearLayout$LayoutParams
10-13 04:12:07.412: E/AndroidRuntime(799): at android.widget.LinearLayout.measureVertical(LinearLayout.java:587)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.widget.TableLayout.measureVertical(TableLayout.java:468)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.widget.TableLayout.onMeasure(TableLayout.java:431)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.view.View.measure(View.java:10828)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4351)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.widget.FrameLayout.onMeasure(FrameLayout.java:267)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.view.View.measure(View.java:10828)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.widget.LinearLayout.measureVertical(LinearLayout.java:764)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.widget.LinearLayout.onMeasure(LinearLayout.java:519)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.view.View.measure(View.java:10828)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4351)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.widget.FrameLayout.onMeasure(FrameLayout.java:267)
10-13 04:12:07.412: E/AndroidRuntime(799): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:1890)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.view.View.measure(View.java:10828)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.view.ViewRoot.performTraversals(ViewRoot.java:909)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.view.ViewRoot.handleMessage(ViewRoot.java:2003)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.os.Handler.dispatchMessage(Handler.java:99)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.os.Looper.loop(Looper.java:132)
10-13 04:12:07.412: E/AndroidRuntime(799): at android.app.ActivityThread.main(ActivityThread.java:4025)
10-13 04:12:07.412: E/AndroidRuntime(799): at java.lang.reflect.Method.invokeNative(Native Method)
10-13 04:12:07.412: E/AndroidRuntime(799): at java.lang.reflect.Method.invoke(Method.java:491)
10-13 04:12:07.412: E/AndroidRuntime(799): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
10-13 04:12:07.412: E/AndroidRuntime(799): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
10-13 04:12:07.412: E/AndroidRuntime(799): at dalvik.system.NativeStart.main(Native Method)
If anyone has any more efficient ways to get a 4X1-10 set of TextViews to be displayed based on the amount of data input by the user, please let me know. 如果有人根据用户输入的数据量有任何更有效的方法来获取要显示的4X1-10 TextView集,请告诉我。
Also I'm using API level 12 我也在使用API级别12
as in log : 如在日志中:
ClassCastException: android.app.ActionBar$LayoutParams cannot be cast to android.widget.LinearLayout$LayoutParams ClassCastException:无法将android.app.ActionBar $ LayoutParams强制转换为android.widget.LinearLayout $ LayoutParams
means you are importing ActionBar.LayoutParams
for setting LayoutParams to TableLayout and Buttons so use LinearLayout.LayoutParams as: 意味着您要导入ActionBar.LayoutParams
以将LayoutParams设置为TableLayout和Button,因此将LinearLayout.LayoutParams用作:
for(int i=0; i<stopper; i++)
{
tr1.setLayoutParams(new LinearLayout.LayoutParams( LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
//.....
tr1.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT)));
tr1.setId(i);
}
You are getting class cast exception because you are using Table Layout and inflating context of ActionBar Linear Layout. 由于使用表布局和ActionBar线性布局的膨胀上下文,因此您将获得类强制转换异常。
java.lang.ClassCastException: android.app.ActionBar$LayoutParams cannot be cast to android.widget.LinearLayout$LayoutParams java.lang.ClassCastException:android.app.ActionBar $ LayoutParams无法转换为android.widget.LinearLayout $ LayoutParams
is there a way 4 columns per row for x number of rows ? 有没有办法为x的行数每行4列?
Use a custom layout for this and use it . 为此使用自定义布局并使用它。
for(int i=0; i<stopper; i++)
{
// Inflate your row "template" and fill out the fields.
TableRow row = (TableRow)LayoutInflater.from(context).inflate(R.layout.attrib_row, null);
((TextView)row.findViewById(R.id.attrib_name)).setText(b.NAME);
((TextView)row.findViewById(R.id.attrib_value)).setText(b.VALUE);
table.addView(row);
}
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