Java onViewCreated（）中选择复选框的问题
在onViewCreated中启动应用程序时，我需要自动选中所有复选框 使用此代码：Java onViewCreated（）中选择复选框的问题,java,android,listview,arraylist,checkbox,Java,Android,Listview,Arraylist,Checkbox,在onViewCreated中启动应用程序时，我需要自动选中所有复选框 使用此代码： @Override public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); lv = (ListView)getView().findViewById(R.id.listview); display
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
lv = (ListView)getView().findViewById(R.id.listview);
displayPlanetList();
for (int i=0;i<plAdapter.getCount();i++) {
Planet p=plAdapter.getItem(i);
//if(p.getId()==3) {
//System.out.println("NOME PIANETA:" + p.getName());
p.setSelected(true);
//}
p.setSelected(true);
System.out.println("NOME PIANETA2:" + p.isSelected());
}
}
public abstract class PlanetAdapter extends ArrayAdapter<Planet> implements CompoundButton.OnCheckedChangeListener, View.OnClickListener
{
private List<Planet> planetList;
private Context context ;
ArrayList<Birra> objects;
public boolean Checked;
private Integer[] imageId;
String ciao;
static PlanetAdapter plAdapter;
String selState ;
public PlanetAdapter(List<Planet> planetList, Context context,Integer[] imageId) {
super(context, R.layout.single_listview_item,planetList);
this.planetList = planetList;
this.context = context;
this.imageId = imageId;
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
}
@Override
public void onClick(View v) {
}
public class PlanetHolder {
public TextView planetName;
public TextView distView;
public TextView valuta;
public CheckBox chkBox;
// public EditText edit;
public TextView caratteristica;
public TextView id;
public ImageView imageView;
public Spinner spinner;
public NumberPicker np;
}
@Override
public int getCount() {
return planetList.size();
}
@Override
public Planet getItem(int position) {
return planetList.get(position);
}
@Override
public View getView(final int position, final View convertView, final ViewGroup parent) {
View row = convertView;
PlanetHolder holder = null;
if (row == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
row = inflater.inflate(R.layout.single_listview_item, parent, false);
holder = new PlanetHolder();
holder.planetName = (TextView) row.findViewById(R.id.name);
holder.distView = (TextView) row.findViewById(R.id.dist);
holder.valuta = (TextView) row.findViewById(R.id.valuta);
holder.chkBox = (CheckBox) row.findViewById(R.id.chk_box);
// holder.edit = (EditText) row.findViewById(R.id.editText);
holder.spinner = (Spinner) row.findViewById(R.id.simpleSpinner);
holder.np=(NumberPicker)row.findViewById(R.id.np);
// holder.edit2 = (EditText) row.findViewById(R.id.editText2);
// holder.iterator = (Button) row.findViewById(R.id.iterator);
// Button iterator=(Button) row.findViewById(R.id.iterator);
// iterator.setOnClickListener(this.PlanetHolder);
holder.caratteristica=(TextView) row.findViewById(R.id.caratteristica);
holder.imageView = (ImageView) row.findViewById(R.id.ivImage);
// holder.edit.setVisibility(View.GONE);
// holder.edit.setEnabled(false);
holder.spinner.setVisibility(View.GONE);
// holder.edit.setVisibility(View.GONE);
// holder.id = (TextView) row.findViewById(R.id.id);
row.setTag(holder);
} else {
holder = (PlanetHolder) row.getTag();
}
final Planet p = planetList.get(position);
System.out.println("stampato P" + p);
holder.imageView.setImageResource(imageId[position]);
holder.planetName.setText(p.getName());
holder.distView.setText("" + p.getDistance());
holder.valuta.setText("" + p.getValuta());
holder.chkBox.setChecked(p.isSelected());
holder.chkBox.setTag(p);
holder.caratteristica.setText(p.getCaratteristica());
// holder.edit.setEnabled(false);
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
boolean isChecked = states.getBoolean("holder.chkBox" + holder.planetName.getText().toString(), false);
System.out.println(isChecked);
if (isChecked) {
holder.spinner.setVisibility(View.VISIBLE);
holder.np.setVisibility(View.VISIBLE);
} else {
holder.chkBox.setChecked(false);
// holder.edit.setVisibility(View.GONE);
// holder.edit.setEnabled(false);
holder.spinner.setVisibility(View.GONE);
holder.np.setVisibility(View.GONE);
}
final PlanetHolder finalHolder2 = holder;
holder.chkBox.setOnCheckedChangeListener(PlanetAdapter.this);
// final BirraHolder finalHolder = birraHolder;
final PlanetHolder finalHolder = holder;
Planet z=getItem(position);
System.out.println(z);
final PlanetHolder finalHolder1 = holder;
final PlanetHolder finalHolder3 = holder;
holder.chkBox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(final View v) {
if (finalHolder.chkBox.isChecked()) {
// finalHolder.edit.setVisibility(View.VISIBLE);
// finalHolder.edit.setEnabled(true);
finalHolder.spinner.setVisibility(View.VISIBLE);
finalHolder.np.setVisibility(View.VISIBLE);
finalHolder.np.setMaxValue(10);
finalHolder.np.setMinValue(0);
finalHolder.np.setWrapSelectorWheel(true);
// finalHolder.np.getMinValue();
// System.out.println("valore picker alla selezione della checkbox"+finalHolder.np.getMinValue());
// finalHolder.edit2.setVisibility(View.VISIBLE);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
getContext(),
R.array.country_arrays,
android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//finalHolder.spinner.setAdapter(adapter);
finalHolder.spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
finalHolder.spinner.setSelection(position);
// selState = finalHolder.spinner.getSelectedItem().toString();
// p.setQuantità(finalHolder.edit.getText().toString().trim());
p.setTipo(finalHolder.spinner.getSelectedItem().toString());
// finalHolder.edit2.setText(selState);
// System.out.println(selState);
System.out.println("p.getTipo()"+p.getTipo());
/* Toast.makeText(
getContext(),
"Clicked on Planet: " + selState + "", Toast.LENGTH_SHORT).show();*/
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
finalHolder.np.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
p.setQuantità2(newVal);
System.out.println(p.getQuantità2());
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putInt("finalHolder.picker" + finalHolder.planetName.getText().toString(), finalHolder.np.getId());
editor.commit();
}
});
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putBoolean("holder.chkBox" + finalHolder.planetName.getText().toString(), true);
editor.commit();
/* SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putBoolean("holder.chkBox" + finalHolder.planetName.getText().toString(), true);
editor.commit();*/
//Utility.putPizzaItem(p);
//Utility.getPizzaItem(p);
} else {
finalHolder.spinner.setVisibility(View.GONE);
finalHolder.np.setVisibility(View.GONE);
finalHolder.np.setValue(0);
}
}
});
return row;
}
尝试在for循环结束后使用plAdapter.notifyDataSetChanged。在适配器中设置值后，必须刷新列表视图。尝试使用plAdapter.notifyDataSetChanged after for循环结束。在adapter中设置值后，必须刷新listview。在adapters getView方法中，尝试以下操作： 在adapters getView方法中，尝试以下操作：
假设你在你的PlanetAdapter中膨胀一个自定义布局，为什么不在您所在行的XML布局中设置android:checked=true？@MichaELDodd我希望选中代码为java而非XML的所有复选框…尝试在调用后添加plAdapter.notifyDataSetChangedsetSelected@MichaelDodd不起作用…也可以直接使用plAdapter.getItemi.setSelectedtrue，而不是将getItemi复制到单独的对象中在PlanetAdapter中展开自定义布局，为什么不在您所在行的XML布局中设置android:checked=true？@MichaELDodd我希望选中代码为java而非XML的所有复选框…尝试在调用后添加plAdapter.notifyDataSetChangedsetSelected@MichaelDodd不起作用…也可以直接使用plAdapter.getItemi.setSelectedtrue，而不是将getItemi复制到单独的对象中。请发布在适配器类中实现的getView方法。是否有任何理由使用onCheckedChanged侦听器？。如果不是，请删除onCheckedChanged listener并重试。我需要onCheckedChanged listener，因为如果需要，我可以选中和取消选中复选框…请检查您正在使用的以下行：boolean isChecked=states.getBooleanholder.chkBox+holder.planetName.getText.toString，false；因为上面的行总是给出错误的值。将isChecked值更新为复选框时，复选框处于未选中状态。请发布在适配器类中实现的getView方法。是否有任何理由使用onCheckedChanged侦听器？。如果不是，请删除onCheckedChanged listener并重试。我需要onCheckedChanged listener，因为如果需要，我可以选中和取消选中复选框…请检查您正在使用的以下行：boolean isChecked=states.getBooleanholder.chkBox+holder.planetName.getText.toString，false；因为上面的行总是给出错误的值。将isChecked值更新为复选框时，复选框处于未选中状态。
public abstract class PlanetAdapter extends ArrayAdapter<Planet> implements CompoundButton.OnCheckedChangeListener, View.OnClickListener
{
private List<Planet> planetList;
private Context context ;
ArrayList<Birra> objects;
public boolean Checked;
private Integer[] imageId;
String ciao;
static PlanetAdapter plAdapter;
String selState ;
public PlanetAdapter(List<Planet> planetList, Context context,Integer[] imageId) {
super(context, R.layout.single_listview_item,planetList);
this.planetList = planetList;
this.context = context;
this.imageId = imageId;
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
}
@Override
public void onClick(View v) {
}
public class PlanetHolder {
public TextView planetName;
public TextView distView;
public TextView valuta;
public CheckBox chkBox;
// public EditText edit;
public TextView caratteristica;
public TextView id;
public ImageView imageView;
public Spinner spinner;
public NumberPicker np;
}
@Override
public int getCount() {
return planetList.size();
}
@Override
public Planet getItem(int position) {
return planetList.get(position);
}
@Override
public View getView(final int position, final View convertView, final ViewGroup parent) {
View row = convertView;
PlanetHolder holder = null;
if (row == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
row = inflater.inflate(R.layout.single_listview_item, parent, false);
holder = new PlanetHolder();
holder.planetName = (TextView) row.findViewById(R.id.name);
holder.distView = (TextView) row.findViewById(R.id.dist);
holder.valuta = (TextView) row.findViewById(R.id.valuta);
holder.chkBox = (CheckBox) row.findViewById(R.id.chk_box);
// holder.edit = (EditText) row.findViewById(R.id.editText);
holder.spinner = (Spinner) row.findViewById(R.id.simpleSpinner);
holder.np=(NumberPicker)row.findViewById(R.id.np);
// holder.edit2 = (EditText) row.findViewById(R.id.editText2);
// holder.iterator = (Button) row.findViewById(R.id.iterator);
// Button iterator=(Button) row.findViewById(R.id.iterator);
// iterator.setOnClickListener(this.PlanetHolder);
holder.caratteristica=(TextView) row.findViewById(R.id.caratteristica);
holder.imageView = (ImageView) row.findViewById(R.id.ivImage);
// holder.edit.setVisibility(View.GONE);
// holder.edit.setEnabled(false);
holder.spinner.setVisibility(View.GONE);
// holder.edit.setVisibility(View.GONE);
// holder.id = (TextView) row.findViewById(R.id.id);
row.setTag(holder);
} else {
holder = (PlanetHolder) row.getTag();
}
final Planet p = planetList.get(position);
System.out.println("stampato P" + p);
holder.imageView.setImageResource(imageId[position]);
holder.planetName.setText(p.getName());
holder.distView.setText("" + p.getDistance());
holder.valuta.setText("" + p.getValuta());
holder.chkBox.setChecked(p.isSelected());
holder.chkBox.setTag(p);
holder.caratteristica.setText(p.getCaratteristica());
// holder.edit.setEnabled(false);
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
boolean isChecked = states.getBoolean("holder.chkBox" + holder.planetName.getText().toString(), false);
System.out.println(isChecked);
if (isChecked) {
holder.spinner.setVisibility(View.VISIBLE);
holder.np.setVisibility(View.VISIBLE);
} else {
holder.chkBox.setChecked(false);
// holder.edit.setVisibility(View.GONE);
// holder.edit.setEnabled(false);
holder.spinner.setVisibility(View.GONE);
holder.np.setVisibility(View.GONE);
}
final PlanetHolder finalHolder2 = holder;
holder.chkBox.setOnCheckedChangeListener(PlanetAdapter.this);
// final BirraHolder finalHolder = birraHolder;
final PlanetHolder finalHolder = holder;
Planet z=getItem(position);
System.out.println(z);
final PlanetHolder finalHolder1 = holder;
final PlanetHolder finalHolder3 = holder;
holder.chkBox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(final View v) {
if (finalHolder.chkBox.isChecked()) {
// finalHolder.edit.setVisibility(View.VISIBLE);
// finalHolder.edit.setEnabled(true);
finalHolder.spinner.setVisibility(View.VISIBLE);
finalHolder.np.setVisibility(View.VISIBLE);
finalHolder.np.setMaxValue(10);
finalHolder.np.setMinValue(0);
finalHolder.np.setWrapSelectorWheel(true);
// finalHolder.np.getMinValue();
// System.out.println("valore picker alla selezione della checkbox"+finalHolder.np.getMinValue());
// finalHolder.edit2.setVisibility(View.VISIBLE);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
getContext(),
R.array.country_arrays,
android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//finalHolder.spinner.setAdapter(adapter);
finalHolder.spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
finalHolder.spinner.setSelection(position);
// selState = finalHolder.spinner.getSelectedItem().toString();
// p.setQuantità(finalHolder.edit.getText().toString().trim());
p.setTipo(finalHolder.spinner.getSelectedItem().toString());
// finalHolder.edit2.setText(selState);
// System.out.println(selState);
System.out.println("p.getTipo()"+p.getTipo());
/* Toast.makeText(
getContext(),
"Clicked on Planet: " + selState + "", Toast.LENGTH_SHORT).show();*/
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
finalHolder.np.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
p.setQuantità2(newVal);
System.out.println(p.getQuantità2());
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putInt("finalHolder.picker" + finalHolder.planetName.getText().toString(), finalHolder.np.getId());
editor.commit();
}
});
SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putBoolean("holder.chkBox" + finalHolder.planetName.getText().toString(), true);
editor.commit();
/* SharedPreferences states = getContext().getSharedPreferences("states", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = states.edit();
editor.putBoolean("holder.chkBox" + finalHolder.planetName.getText().toString(), true);
editor.commit();*/
//Utility.putPizzaItem(p);
//Utility.getPizzaItem(p);
} else {
finalHolder.spinner.setVisibility(View.GONE);
finalHolder.np.setVisibility(View.GONE);
finalHolder.np.setValue(0);
}
}
});
return row;
}
@Override
public View getView(final int position, final View convertView, final ViewGroup parent) {
...........
...................
if (isChecked) {
holder.chkBox.setChecked(true);
holder.spinner.setVisibility(View.VISIBLE);
holder.np.setVisibility(View.VISIBLE);
} else {
holder.chkBox.setChecked(false);
holder.spinner.setVisibility(View.GONE);
holder.np.setVisibility(View.GONE);
}
.........
...................
return row;
}