我正在尝试动态地向LinearLayout添加复选框。我使用了以下代码，
private class ListAdapters extends ArrayAdapter<ApplicationBean> {
private ArrayList<ApplicationBean> items;
private int position;
public ListAdapters(Context context, int textViewResourceId,
ArrayList<ApplicationBean> mTitleList) {
super(context, textViewResourceId, mTitleList);
this.items = mTitleList;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
this.position = position;
if (v == null) {
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = inflater.inflate(R.layout.applicationlistitem, null);
}
final ApplicationBean o = (ApplicationBean) items.get(position);
if (o != null) {
txtAppName = (TextView) v.findViewById(R.id.app_name);
txtAppName.setText("" + o.getAppName());
launchButton = (Button) v.findViewById(R.id.launch_btn);
launchButton.setTag(position);
launchButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
final PackageManager pm = mContext.getPackageManager();
Intent LaunchIntent = pm
.getLaunchIntentForPackage(items
.get(Integer.parseInt(v.getTag()
.toString())).getPname());
mContext.startActivity(LaunchIntent);
}
});
rdgPassFail = (RadioGroup) v.findViewById(R.id.status_group);
rdgPassFail.setTag(position);
RadioButton passBtn = (RadioButton) v
.findViewById(R.id.pass_btn);
passBtn.setTag(position);
RadioButton failbtn = (RadioButton) v
.findViewById(R.id.fail_btn);
failbtn.setTag(position);
rdgPassFail
.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group,
int checkedId) {
ApplicationBean o = (ApplicationBean) items
.get(Integer.parseInt(group.getTag()
.toString()));
switch (checkedId) {
case R.id.fail_btn:
Log.e("Fail button", "Clicked");
o.setFailState(true);
o.setPassState(false);
numOptions = 0;
Log.e("Fail button--1", "Clicked");
break;
case R.id.pass_btn:
Log.e("Pass button", "Clicked");
o.setFailState(false);
o.setPassState(true);
Log.e("Pass button-----1", "Clicked");
break;
}
items.set(Integer.parseInt(group.getTag()
.toString()), o);
}
});
Log.i("checkBoxFlag", "checkBoxFlag not true " + position);
LinearLayout featuresTable = (LinearLayout) v
.findViewById(R.id.failure_reasonslist);
for (int i = 0; i <= 5; i++) {
CheckBox feature1 = new CheckBox(this.getContext());
featuresTable.addView(feature1);
Log.i("Inside for loop", "creating check box " + position);
}
checkBoxFlag = true;
txtDescription = (EditText) v
.findViewById(R.id.description_text);
txtDescription.setTag(position);
if (txtDescription.isFocused()) {
InputMethodManager inputManager = (InputMethodManager) mContext
.getSystemService(INPUT_METHOD_SERVICE);
inputManager.restartInput(txtDescription);
}
txtDescription
.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (!hasFocus) {
final EditText Caption = (EditText) v;
o.setDescription(Caption.getText()
.toString());
}
}
});
uninstallButton = (Button) v.findViewById(R.id.uninstall_btn);
uninstallButton.setTag(position);
// uninstallButton.setVisibility(View.INVISIBLE);
o.setUninstallVisible(false);
uninstallButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Uri packageUri = Uri.parse("package:"
+ items.get(
Integer.parseInt(v.getTag().toString()))
.getPname());
Intent uninstallIntent = new Intent(
Intent.ACTION_DELETE, packageUri);
uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(uninstallIntent);
mTitleList.remove(items.get((Integer) v.getTag()));
mListView.setAdapter(new ListAdapters(mContext,
R.id.app_name, mTitleList));
((BaseAdapter) mListView.getAdapter())
.notifyDataSetChanged();
isUninstallclicked = true;
}
});
submitButton = (Button) v.findViewById(R.id.submit_btn);
submitButton.setTag(txtDescription);
submitButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
EditText tv = (EditText) v.getTag(); // get edittext
// object
txtDescription = tv;
if (txtTesterName.getText().toString().equals("")) {
showDialog("Please enter the name of tester",
mContext);
} else if (numOptions == 0) {
showDialog("Please select failure reason", mContext);
} else if (tv.getText().toString().equals("")) {
showDialog("Please enter the description", mContext);
} else if (!isNetworkAvailable()) {
showDialog(
"No network connection.Report won't be submitted",
mContext);
} else {
if (!o.isUninstallVisible()) {
uninstallButton.setVisibility(View.VISIBLE);
o.setUninstallVisible(true);
mListView.invalidate();
}
PostRequest p = new PostRequest(Integer.parseInt(tv
.getTag().toString()));
p.execute();
}
}
});
}
return v;
}
@Override
public int getItemViewType(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public int getViewTypeCount() {
// TODO Auto-generated method stub
return items.size();
}
}
根据代码，视图中应该有六个复选框。但当我检查了超过六个复选框时。请在下面找到日志（从logcat复制）。日志也来了两次。我在列表视图中有一些其他控件。这些是在布局xml中定义的。但是我不能在设计时限制这些复选框的数量。所以我试图动态加载。有人可以帮忙吗？
10:40:23.163: I/Inside for loop(440): creating check box 0
10:40:23.223: I/Inside for loop(440): creating check box 0
10:40:23.223: I/Inside for loop(440): creating check box 0
10:40:23.273: I/Inside for loop(440): creating check box 0
10:40:23.273: I/Inside for loop(440): creating check box 0
10:40:23.303: I/Inside for loop(440): creating check box 0
10:40:23.393: I/c
10:40:23.393: I/Inside for loop(440): creating check box 0
10:40:23.423: I/Inside for loop(440): creating check box 0
10:40:23.423: I/Inside for loop(440): creating check box 0
10:40:23.503: I/Inside for loop(440): creating check box 0
10:40:23.503: I/Inside for loop(440): creating check box 0
10:40:23.553: I/Inside for loop(440): creating check box 0
答案 0 :(得分：10)
您必须尝试使用以下代码创建动态复选框
int Array_Count=0;
String[] Str_Array;
Array_Count=Str_Array.length;
LinearLayout my_layout = (LinearLayout)findViewById(R.id.my_layout);
for (int i = 0; i < Array_Count; i++)
{
TableRow row =new TableRow(this);
row.setId(i);
row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
CheckBox checkBox = new CheckBox(this);
checkBox.setOnCheckedChangeListener(this);
checkBox.setId(i);
checkBox.setText(Str_Array[i]);
row.addView(checkBox);
my_layout.addView(row);
}
答案 1 :(得分：3)
这样做
@Override
public void onCreate(Bundle savedInstanceState) {
LinearLayout ll = (LinearLayout)findViewById(R.id.linearLayout2);
//add checkboxes
for(int i = 0; i < 6; i++) {
CheckBox cb = new CheckBox(this);
cb.setText("Dynamic Checkbox " + i);
cb.setId(i+6);
ll.addView(cb);
}
}
答案 2 :(得分：0)
您发布的代码只添加了6个复选框。这意味着调用这些函数的方法被调用两次。
您正在某处登录I / c。第二次调用此方法是在该调用之后进行的，这使您可以开始查看。
答案 3 :(得分：0)
试试这个： -
CheckBox[] cb=new CheckBox[6];
for(int i = 0; i < 6; i++) {
cb[i].setText("Dynamic Checkbox " + i);
cb[i].setId(i+6);
linearLayout.addView(cb[i]);
}
答案 4 :(得分：0)
使用它：
LinearLayout ll = (LinearLayout) findViewById(R.id.ll);
CheckBox[] cb = new CheckBox[6];
for (int i = 0; i < 6; i++) {
cb[i] = new CheckBox(this);
ll.addView(cb[i]);
cb[i].setText("Dynamic Checkbox " + i);
cb[i].setId(i + 6);
}
答案 5 :(得分：0)
在 Kotlin 中
fun createCheckbox() {
var arr_cb = arrayOfNulls<CheckBox>(checkbox_size)
val layout = findViewById<View>(R.id.layout_checkbox) as ViewGroup
val ll = LinearLayout(this)
ll.orientation = LinearLayout.VERTICAL
for (i in 0 until arr_cb.size) {
arr_cb[i] = CheckBox(this)
arr_cb[i]?.text = health_status.get(i).toString()
arr_cb[i]?.setPadding(25, 0, 0, 0)
arr_cb[i]?.id = i
arr_cb[i]?.tag = health_status[i]
arr_cb[i]?.setTextColor(resources.getColor(R.color.title_color))
arr_cb[i]?.setOnCheckedChangeListener(
arr_cb[i]?.let {
handleCheck(it)
})
arr_cb[i]?.buttonTintList =
ColorStateList.valueOf(resources.getColor(R.color.theme_color))
ll.addView(arr_cb[i])
}
layout.addView(ll)
}
OnCheckedChangeListener 的handleCheck 方法
private fun handleCheck(chk: CheckBox): CompoundButton.OnCheckedChangeListener? {
return object : CompoundButton.OnCheckedChangeListener {
override fun onCheckedChanged(buttonView: CompoundButton?, isChecked: Boolean) {
if (!isChecked) {
//uncheck
} else {
//check
}
}
}
}