Thursday 29 November 2018

How to Create and Delete the Dynamic View.

//Create the Main xml file for adding and delete the view.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.intel.addedittext.MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical">

        <LinearLayout
            android:id="@+id/linearPlus"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginTop="10dp"
            android:orientation="vertical">

        </LinearLayout>

        <Button
            android:id="@+id/btPlus"
            android:layout_width="62dp"
            android:layout_height="62dp"
            android:text="+"
            android:textColor="#000000" />
    </LinearLayout>

    <Button
        android:id="@+id/btnClick"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="CLick"
        android:textColor="#000000" />
</LinearLayout>

 

 
//Create the raw item for creating the view.

<?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:id="@+id/root"
    android:layout_marginTop="8dp"
    >
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="18dp"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/txtBook"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Guide(s)"
            android:textColor="#000000" />

        <EditText
            android:id="@+id/etBook"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="68dp"
            android:ems="10"
            android:inputType="textEmailAddress"
            android:paddingLeft="8dp"
            android:textColor="#000000"/>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="18dp"
        android:layout_marginTop="12dp"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/txtAuthor"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Author/Publisher"
            android:textColor="#000000" />

        <EditText
            android:id="@+id/etAuthor"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="14dp"
            android:ems="10"
            android:inputType="textEmailAddress"
            android:paddingLeft="8dp"
            android:textColor="#000000"/>
    </LinearLayout>
    <Button
        android:id="@+id/btnDelete"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Delete"/>
</LinearLayout>


 //Create the model class for creating the view

public class ModelBookUI {

    public EditText book_name;
    public EditText author;
    public Button delete;
}
//Creating the main Java file for creating the view
 
 
public class MainActivity extends AppCompatActivity {
    List<ModelBookUI> UIArray = new ArrayList<>();
    int position = 0;
    LinearLayout plusLinearLayout;
    Button plusButton;
    String name[];
    String author[];
    JSONArray jsonArray = new JSONArray();

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        plusLinearLayout = (LinearLayout) findViewById(R.id.linearPlus);
        //Getting the Button ID        plusButton = (Button) findViewById(R.id.btPlus);
        Button clickButton = (Button) findViewById(R.id.btnClick);

        clickButton.setOnClickListener(new View.OnClickListener() {

            @Override            public void onClick(View view) {
                JSONArray jsonObject = getObject();
                String mName = jsonObject.toString();
                Log.d("Json::", "Json::" + mName);
            }
        });

        plusButton.setOnClickListener(new View.OnClickListener() {

            @Override            public void onClick(View view) {

                position = UIArray.size();

                if (position < 5) {
                    UIArray.add(AddView("lay" + position, position, plusLinearLayout));
                } else {
                    Toast.makeText(MainActivity.this, "Limit exeeds", Toast.LENGTH_LONG).show();
                }
            }
        });
    }

    private JSONArray getObject() {
        for (int j = 0; j < UIArray.size(); j++) {

            EditText bookName = (EditText) UIArray.get(j).book_name;
            EditText authorName = (EditText) UIArray.get(j).author;

            for (int i = j; i <= j; i++) {
                JSONObject object = new JSONObject();
                try {
                    object.put("surveyid", bookName.getText().toString());
                    object.put("question", authorName.getText().toString());
                } catch (JSONException e) {
                    e.printStackTrace();
                }

                jsonArray.put(object);
                Log.i("Object::", "Object::" + jsonArray.put(object));
            }


        }
        return jsonArray;
    }

    /**********************Add new view**************************/ 
 private ModelBookUI AddView(String tag, int position, final LinearLayout parent) {

        LayoutInflater inflater = LayoutInflater.from(MainActivity.this);

        View child = inflater.inflate(R.layout.add_book, parent, false);

        EditText book = (EditText) child.findViewById(R.id.etBook);
        Button delete = (Button) child.findViewById(R.id.btnDelete);
        EditText author = (EditText) child.findViewById(R.id.etAuthor);
        LinearLayout root = (LinearLayout) child.findViewById(R.id.root);
        root.setTag(tag);

        ModelBookUI model = new ModelBookUI();

        model.book_name = book;
        model.author = author;
        model.delete = delete;

        parent.addView(child);
        delete.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                if (UIArray.size() == 0) {
                    Toast.makeText(MainActivity.this, "Nothing to remove", Toast.LENGTH_SHORT).show();
                } else {
                    parent.removeView((View) v.getParent());
                    UIArray.remove(UIArray.size() - 1);
                }

            }
        });

        return model;
    }
}

No comments:

Post a Comment