我正在尝试从CreateActivity中通过putInt（）传递的资源ID引用drawable。我想使用与资源ID关联的drawable，并将其用作创建Event Object（带有其他参数）的一部分。
我是否错误地引用了drawable？或者我构建事件对象的方式有问题吗？
很抱歉这篇文章很长。
CreateActivity
public class CreateActivity extends Activity implements OnClickListener {
EditText etTitle;
Button btDate;
Button btTime;
Button btPic;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_create);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
//onclicklistener
findViewById(R.id.btn_confirm).setOnClickListener(this);
findViewById(R.id.btn_back).setOnClickListener(this);
etTitle = (EditText) findViewById(R.id.editTextTitle);
btDate = (Button) findViewById(R.id.btn_date);
btTime = (Button) findViewById(R.id.btn_time);
btPic = (Button) findViewById(R.id.btn_picture);
}
// Will be called via the onClick attribute
// of the buttons in main.xml
public void onClick(View view) {
switch (view.getId()) {
case R.id.btn_confirm:
String title = etTitle.getText().toString();
String time = btTime.getText().toString();
String date = btDate.getText().toString();
int resId = getResources().getInteger(R.id.btn_picture);
Log.e("LOG", title);
Log.e("LOG", time);
Log.e("LOG", date);
Bundle newBundle = new Bundle();
newBundle.putString("TITLE", title);
newBundle.putString("TIME", time);
newBundle.putString("DATE", date);
//Trying to pass a drawable from one activity to another
newBundle.putInt("DRAWABLE", resId);
Intent intent = new Intent(this, MainActivity.class);
intent.putExtras(newBundle);
setResult(RESULT_OK, intent);
finish();
break;
case R.id.btn_back:
finish();
break;
}
}
public void showTimePickerDialog(View v) {
DialogFragment newFragment = new TimePickerFragment();
newFragment.show(getFragmentManager(), "timePicker");
}
public void showDatePickerDialog(View v) {
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getFragmentManager(), "datePicker");
}
public void showPicturePickerDialog(View v) {
DialogFragment newFragment = new PicturePickerFragment();
newFragment.show(getFragmentManager(), "picturePicker");
}
}
MainActivity
public class MainActivity extends FragmentActivity implements OnClickListener {
ListView listView;
int lastIndex = -1;
ArrayList<Event> lstEvents = new ArrayList<Event>();
// detail view
TextView tvTitle, tvTime, tvDate;
ImageView ivPic;
View vw_master;
boolean _isBack = true;
ImageButton add;
String title;
String date;
String time;
int resId;
static final int PICK_CONTACT_REQUEST = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
// // get detail controls
tvTitle = (TextView) findViewById(R.id.textViewTitle);
tvDate = (TextView) findViewById(R.id.textViewDate);
tvTime = (TextView) findViewById(R.id.textViewTime);
ivPic = (ImageView) findViewById(R.id.imageView1);
add = (ImageButton) findViewById(R.id.add);
add.setOnClickListener(this);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.add:
Intent intent = new Intent(this, CreateActivity.class);
startActivityForResult(intent, 100);
break;
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// Create the adapter to convert the array to views
EventAdapter adapter = new EventAdapter(this, lstEvents);
// attach adapter to a list view
listView = (ListView) findViewById(R.id.listViewFragment);
listView.setAdapter(adapter);
if (requestCode == 100) {
if (resultCode == RESULT_OK) {
Bundle b = data.getExtras();
title = b.getString("TITLE");
time = b.getString("TIME");
date = b.getString("DATE");
// retrieving resId, creating drawable
resId = b.getInt("DRAWABLE");
Drawable img = getResources().getDrawable(resId);
/////
Log.e("SWAGSWAG", title);
Log.e("SWAGSWAG", time);
Log.e("SWAGSWAG", date);
Event newEvent = new Event();
newEvent.set_date(date);
newEvent.set_title(title);
newEvent.set_time(time);
// set drawable
newEvent.set_drawable(img);
lstEvents.add(newEvent);
adapter.addAll(lstEvents);
adapter.notifyDataSetChanged();
}
}
}
}
活动类
public class Event {
public int _id;
public String _title;
public String _time;
public String _date;
//drawable
public Drawable _drawable;
public Event() {
super();
};
public Event(int id, String title, String time, String date, Drawable drawable) {
this._id = id;
this._title = title;
this._time = time;
this._date = date;
this._drawable = drawable;
};
public Event(JSONObject object){
try {
this._id = object.getInt("id");
this._title = object.getString("title");
this._time = object.getString("time");
this._date = object.getString("date");
} catch (JSONException e) {
e.printStackTrace();
}
}
public int get_Id() {
return _id;
}
public String get_title() {
return _title;
}
public void set_title(String _title) {
this._title = _title;
}
public Drawable get_drawable() {
return _drawable;
}
public void set_drawable(Drawable _drawable) {
this._drawable = _drawable;
}
public String get_time() {
return _time;
}
public void set_time(String _time) {
this._time = _time;
}
public String get_date() {
return _date;
}
public void set_date(String _date) {
this._date = _date;
}
}
EventAdapter
public class EventAdapter extends ArrayAdapter<Event> {
// View lookup cache
private static class ViewHolder {
//adding drawable to imageview
ImageView img;
TextView title;
TextView time;
TextView date;
}
public EventAdapter(Context context, List<Event> objects) {
super(context, R.layout.date_detail);
// TODO Auto-generated constructor stub
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Get the data item for this position
Event event = getItem(position);
// Check if an existing view is being reused, otherwise inflate the view
ViewHolder viewHolder;
if (convertView == null) {
viewHolder = new ViewHolder();
LayoutInflater inflater = LayoutInflater.from(getContext());
convertView = inflater.inflate(R.layout.date_detail, null);
viewHolder.title = (TextView) convertView
.findViewById(R.id.textViewTitle);
viewHolder.time = (TextView) convertView
.findViewById(R.id.textViewTime);
viewHolder.date = (TextView) convertView
.findViewById(R.id.textViewDate);
//adding drawable to imageview
viewHolder.img = (ImageView) convertView
.findViewById(R.id.imageView1);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
// Populate the data into the template view using the data object
viewHolder.title.setText(event._title);
viewHolder.time.setText(event._time);
viewHolder.date.setText(event._date);
//drawable
viewHolder.img.setImageDrawable(event._drawable);
// Return the completed view to render on screen
return convertView;
}
}
logcat的
03-18 21：49：57.153：E / AndroidRuntime（6218）：致命异常：主要 03-18 21：49：57.153：E / AndroidRuntime（6218）：java.lang.RuntimeException：传递结果失败ResultInfo {who = null，request = 100，result = -1，data = Intent {cmp = com.example。 datetracker / .MainActivity（has extras）}} to activity {com.example.datetracker / com.example.datetracker.MainActivity}：android.content.res.Resources $ NotFoundException：Resource ID＃0x0 03-18 21：49：57.153：E / AndroidRuntime（6218）：在android.app.ActivityThread.deliverResults（ActivityThread.java:3351） 03-18 21：49：57.153：E / AndroidRuntime（6218）：在android.app.ActivityThread.handleSendResult（ActivityThread.java:3394） 03-18 21：49：57.153：E / AndroidRuntime（6218）：在android.app.ActivityThread.access $ 1100（ActivityThread.java:146） 03-18 21：49：57.153：E / AndroidRuntime（6218）：在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1288）
答案 0 :(得分：0)
更改
int resId = getResources().getInteger(R.id.btn_picture);
到
int resId = R.id.btn_picture;
因为R.id.btn_picture已经是视图的整数ID所以不需要使用getResources().getInteger;