I'm new to Android developing.
At the moment I'm trying to fill in a TableLayout with my data.
The Data part works just well but TextView parameters from TableRow don't affect my design.
Here's my Activity whith the table:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/table"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:stretchColumns="1">
<include layout = "#layout/table_row"/>
</TableLayout>
</ScrollView>
and here's TableRow XML I use to inflate
<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FBFBFB">
<TextView
android:id="#+id/number"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:padding="2dp"
android:layout_weight="0"
android:textSize="16sp"/>
<TextView
android:id="#+id/school_name"
android:textSize="16sp"
android:background="#color/colorAccent"
android:layout_weight="1"
android:text="School Name"/>
<TextView
android:id="#+id/rating"
android:textSize="16sp"
android:padding="2dp"
android:layout_weight="2"
android:text="Rating"/>
</TableRow>
and Java code:
public void fillTable () {
TableLayout tableLayout = (TableLayout) findViewById(R.id.table);
LayoutInflater inflater = LayoutInflater.from(this);
for(int i = 0; i<schools.size(); i++){
addRow(i, inflater, tableLayout);
}
}
public void addRow(int num, LayoutInflater inflater, TableLayout parent) {
TableRow tr = (TableRow) inflater.inflate(R.layout.table_row,parent,false);
tr.setId(num + 1);
TextView tv = tr.findViewById(R.id.number);
tv.setText(String.valueOf(num+1));
tv = tr.findViewById(R.id.school_name);
tv.setText(schools.get(num).schoolName);
tv = tr.findViewById(R.id.rating);
tv.setText(String.valueOf(schools.get(num).score));;
final int index = num ;
tr.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, SchoolCard.class);
intent.putExtra(SCHOOL_LINK,schools.get(index).schoolCardLink);
startActivity(intent);
}
});
parent.addView(tr);
}
Can't find where problem is.
Place the TableRow inside the Table tab and run.
Related
I have created dynamic EditText boxes and spinner on Add button, but I don't know how to retrieve data from them. The whole code is available on this website.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
parentLinearLayout = (LinearLayout) findViewById(R.id.parent_linear_layout);
mText=(EditText) findViewById(R.id.number_edit_text);
}
public void onAddField(View v) {
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = inflater.inflate(R.layout.field, null);
// Add the new row before the add field button.
parentLinearLayout.addView(rowView, parentLinearLayout.getChildCount() - 1);
parentLinearLayout.getChildAt(counter);
}
public void onDelete(View v) {
parentLinearLayout.removeView((View) v.getParent());
}
Try this, You can simply create loop and get all data which have added dynamically, like this :
Change your layout activity_main.xml because in demo they were doing wrong code for layout.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/parent_linear_layout"
android:orientation="vertical"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="horizontal" >
<EditText
android:id="#+id/number_edit_text"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="5"
android:inputType="phone"/>
<Spinner
android:id="#+id/type_spinner"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3"
android:entries="#array/types"
android:gravity="right" />
<Button
android:id="#+id/delete_button"
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_weight="1"
android:background="#android:drawable/ic_delete"
android:onClick="onDelete"/>
</LinearLayout>
</LinearLayout>
<Button
android:id="#+id/add_field_button"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:background="#555"
android:layout_gravity="center"
android:onClick="onAddField"
android:textColor="#FFF"
android:text="Add Field"
android:paddingLeft="5dp"/>
<TextView android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=""
android:id="#+id/result"/>
</LinearLayout>
Code for getting all values of edit Text :
int count = parentLinearLayout.getChildCount();
for(int i=0; i<count; i++) {
LinearLayout linearLayout = (LinearLayout)parentLinearLayout.getChildAt(i);
EditText editText = (EditText)linearLayout.getChildAt(0);
String result = editText.getText().toString();
//You can result get data from edit text.
}
For Spinner Value :
int count = parentLinearLayout.getChildCount();
for(int i=0; i<count; i++) {
LinearLayout linearLayout = (LinearLayout)parentLinearLayout.getChildAt(i);
Spinner spinnerField = (Spinner)linearLayout.getChildAt(1);
String result = spinnerField.getSelectedItem().toString();
//You can result get data from spinner value.
}
mText=(EditText) view.findViewById(R.id.number_edit_text);
Put this in onAddField method.
When you want to get the text from the ediText you need to call
mText.getText().toString()
I want to realize the Gallery using HorizontalScrollView. But it throws java.lang.illegalStateException. The logcat hint that the HorizontalScrollView can host only one direct child. I only set one direct child - LinearLayout to it. I searched from the Internet, but haven't solved the problem. Hope anyone can help me. Belows are the code.
xml
<HorizontalScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="8dp"
android:scrollbars="none"
>
<LinearLayout
android:id="#+id/gallery_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
</LinearLayout>
</HorizontalScrollView>
item xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="10dp"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:paddingBottom="20dp"
>
<ImageView
android:id="#+id/trend_item_imageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="8dp"
android:src="#drawable/gallery0"
/>
<TextView
android:id="#+id/trend_item_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="权利的游戏"
android:textSize="16sp"
/>
</LinearLayout>
Fragment
public class DiscoverFragment extends Fragment {
private int[] imageResources = {R.drawable.gallery0, R.drawable.gallery1, R.drawable.gallery2,
R.drawable.gallery3, R.drawable.gallery4, R.drawable.gallery5};
private String[] imageDescriptions = {"权利的游戏", "风吹的风景", "插画背景", "美食君", "吃", "你好四月"};
private List<TrendItem> trendItemList;
private LinearLayout galleryLayout;
public DiscoverFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_discover, container, false);
ButterKnife.bind(this, view);
galleryLayout = ButterKnife.findById(view, R.id.gallery_layout);
initData();
setView();
return view;
}
private void initData(){
trendItemList = new ArrayList<>();
for (int i = 0; i < imageResources.length; i++){
TrendItem trendItem = new TrendItem();
trendItem.setImageResource(imageResources[i]);
trendItem.setText(imageDescriptions[i]);
trendItemList.add(trendItem);
}
}
private void setView(){
for (int i = 0; i < trendItemList.size(); i++){
LayoutInflater inflater = LayoutInflater.from(getContext());
View view = inflater.inflate(R.layout.trend_item, galleryLayout, false);
ImageView trendItemImageView = ButterKnife.findById(view, R.id.trend_item_imageview);
TextView trendItemTextView = ButterKnife.findById(view, R.id.trend_item_textview);
trendItemImageView.setImageResource(trendItemList.get(i).getImageResource());
trendItemTextView.setText(trendItemList.get(i).getText());
galleryLayout.addView(view);
}
}
}
Meaning, you have to add the ImageView, TextView to the Linearlayout. when you add the imageview you are adding it to the HorizontalScrollview which also has a LinearLayout in it their by adding 2 child elements to the HorizontalScrollView which you cannot do.
<HorizontalScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="8dp"
android:scrollbars="none">
<LinearLayout
android:id="#+id/gallery_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="#+id/trend_item_imageview"
android:layout_width="your_size"
android:layout_height="your_size"
android:src="#drawable/gallery0"/>
<TextView
android:id="#+id/trend_item_textview"
android:layout_width="your_size"
android:layout_height="your_size"
android:text="权利的游戏"
android:textSize="16sp"/>
</LinearLayout>
</HorizontalScrollView>
I am designing layout as follows.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
<ScrollView
<LinearLayout
<LinearLayout
<TextViewなど
.
.
.
</LinearLayout>
<LinearLayout
<packagename.ExpandableHeightGridView
</LinearLayout>
</LinearLayout>
</ScrollView>
I was executing the program on the nexus5.
It is as follows, Gridview is expressed in the top on display.
enter image description here
If I scroll to the top, then LinearLayout is expressed.
enter image description here
I tried to adjust the layout.
But GridView wasn't adjusted.
I want to set LinearLayout to the top at first.
public class Activity_CommunicationSpace_MemberList extends Activity {
private List<Data_User> objects = new ArrayList<Data_User>();
private Data_User item = new Data_User();
private String user_name;
private Bitmap user_icon;
private Bitmap user_profile;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_communicationspace_memberlist);
user_name = "Test_Test";
user_icon = BitmapFactory.decodeResource(getResources(), R.drawable.icon_lamborghini);
for (int i = 0; i < 60; i++) {
item = new Data_User();
item.setNameData(user_name);
item.setIconData(user_icon);
objects.add(item);
}
Adapter_CommunicationSpace_MemberList adapter = new Adapter_CommunicationSpace_MemberList(getApplicationContext(), R.layout.adapter_communicationspace_memberlist, objects);
ExpandableHeightGridView expandableHeightGridView = (ExpandableHeightGridView) findViewById(R.id.gridview_communicationspace_memberlist);
expandableHeightGridView.setExpanded(true);
expandableHeightGridView.setAdapter(adapter);
final ScrollView scrollView = (ScrollView) findViewById(R.id.activity_communicationspace_memberlist_scrollView);
scrollView.post(new Runnable() {
public void run() {
scrollView.fullScroll(ScrollView.FOCUS_UP);
}
});
}
If Listview And Gridview Are in Bottom Then its Scroll itself. they Does'nt need Scrollview or ExpendeableGridview in This Case
U Should Try This Layout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
</LinearLayout>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:text="Country Codes"
android:textSize="20sp" />
<Button
android:id="#+id/findSelected"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Get Selected Items" />
<GridView
android:id="#+id/listView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:numColumns="auto_fit"/></LinearLayout>
i am a beginer android-developer and i need some help:
There is a Fragment in my Project - TasksFragment, there is a ListView element on it. On ListView, using ArrayAdapter Items are formed by a custom layout for Item and then added to ListView. The problem is, that ListView don't react on click processing events.
Here are the code fragments:
TaskAdapter class...
public class TaskAdapter extends ArrayAdapter<Task> {
public TaskAdapter(ArrayList<Task> tasks) {
super(getActivity(), 0, tasks);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = getActivity().getLayoutInflater().inflate(R.layout.list_item_task, null);
}
Task task = getItem(position);
TextView titleTextView = (TextView) convertView.findViewById(R.id.task_list_item_titleTextView);
titleTextView.setText(task.getTitle());
CheckBox solvedCheckBox = (CheckBox) convertView.findViewById(R.id.task_list_item_solvedCheckBox);
solvedCheckBox.setChecked(task.isSolved());
return convertView;
}
}
ItemClick fragment.
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.tasks_fragment, null);
mTasks = TaskLab.get(getActivity()).getTasks();
final ListView lvMain = (ListView) view.findViewById(R.id.listViewTasks);
lvMain.setClickable(true);
TaskAdapter adapter = new TaskAdapter(mTasks);
setHasOptionsMenu(true);
lvMain.setAdapter(adapter);
lvMain.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Task task = (Task)lvMain.getItemAtPosition(position);
Toast.makeText(getActivity().getApplicationContext(), task.getTitle() + " was clicked", Toast.LENGTH_LONG).show();
Intent i = new Intent(getActivity(), AddTaskActivity.class);
startActivity(i);
}
});
return view;
}
XML Layout for List_Item_Task
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<CheckBox
android:id="#+id/task_list_item_solvedCheckBox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_alignParentRight="true"
android:enabled="false"
android:padding="4dp"/>
<TextView
android:id="#+id/task_list_item_titleTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#+id/task_list_item_solvedCheckBox"
android:textStyle="bold"
android:paddingLeft="4dp"
android:paddingRight="4dp"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:textSize="22dp"/>
</RelativeLayout>
Xml layout for tasks_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#3f638b">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/textViewTasksFragmentHeader"
android:text="Задачи"
android:textSize="30dp"
android:layout_gravity="center_horizontal"
android:layout_centerHorizontal="true"/>
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/listViewTasks" />
</LinearLayout>
Yes your listview is not clickable.
Just add this in your checkbox layout
android:focusable="false"
Your items xml should look like this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<CheckBox
android:id="#+id/task_list_item_solvedCheckBox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:focusable="false" //Add this
android:layout_alignParentRight="true"
android:gravity="center"
android:padding="4dp" />
<TextView
android:id="#+id/task_list_item_titleTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#+id/task_list_item_solvedCheckBox"
android:paddingBottom="5dp"
android:paddingLeft="4dp"
android:paddingRight="4dp"
android:paddingTop="5dp"
android:textSize="22dp"
android:textStyle="bold" />
Now it should work. I have tested it :)
I want to programmatically add a view to ScrollView that is apart of a Fragment layout.
I have attempeted the following code:
public class MessageDetail extends Fragment {
View layout;
TextView messageText;
Conversation conversation;
List<Message> messages;
LayoutInflater inflater;
ViewGroup container;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
this.inflater = inflater;
this.container = container;
layout = inflater.inflate(R.layout.messenger_detail, container,
false);
messageText = (TextView) layout.findViewById(R.id.tvMessage);
return layout;
}
public void loadConversation(Conversation conversation) {
messageText.setText(conversation.getSubject());
LinearLayout messagesView = (LinearLayout)layout.findViewById(R.id.llMessageDetail);
LinearLayout messageBody = new LinearLayout(getActivity());
View body = inflater.inflate(R.layout.messagebody, container);
messagesView.addView(body);
}
}
messagebody.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/llMessageBody"
android:layout_width="fill_parent"
android:layout_margin="5dp"
android:layout_height="200dp"
android:background="#353535"
android:orientation="vertical" >
<TextView
android:id="#+id/tvMSBodyFrom"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20dp"
android:text="Research Station:"
android:textColor="#FFFFAA"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/tomatohigh"
/>
</LinearLayout>
message_detail.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#d3d6da"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="100dp"
android:background="#FFAA00" >
<TextView
android:id="#+id/tvMessage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="20dp"
android:text="Select a Message:"
android:textColor="#353535"
android:textSize="30dp" />
</LinearLayout>
<ScrollView
android:id="#+id/svMessageDetail"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#9900AA"
android:minHeight="300dp" >
<LinearLayout
android:id="#+id/llMessageDetail"
android:layout_width="fill_parent"
android:orientation="vertical"
android:layout_height="wrap_content" >
</LinearLayout>
</ScrollView>
</LinearLayout>
The final implementaion would see me loop through a list of messages and add the a view with the message_body layout and change each part of the layout to the correct values of each message
Any ideas how to achieve this?
You can do like this:
YourView varView = new YourView(this);
myButton.setLayoutParams(new YourLayout.LayoutParams());
yourParentLayout.addView(varView);
Example: Add a button in parent linear layout
Button myButton = new Button(this);
myButton.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.FILL_PARENT,
LinearLayout.LayoutParams.FILL_PARENT));
myLayout.addView(myButton);