How to change the text field value from fragment to button click event-CodePudding

Click on button event.

public void onClick(View view) {
        Button result = view.findViewById(view.getId());
        textNo[R.id.t1].setText("2");
        Toast.makeText(getActivity(),"클릭 : "   result.getText().toString(),Toast.LENGTH_SHORT).show();
    }

For example, is there a way to change the value of the first text view by clicking the first button? There are countless buttons, so I gave resource id to each button and text Now, for example, only 5 buttons and text views are given.

for (i = 0; i < 5; i  ) {
            String textId = "t"   (i   1);
            String buttonId = "b"   (i   1);
            textNo[i] = view.findViewById(getResources().getIdentifier(textId, "id", getActivity().getPackageName()));
            buttonNo[i] = view.findViewById(getResources().getIdentifier(buttonId, "id", getActivity().getPackageName()));

When I press the button on the same line, I want to increase the number of text views located on it, but I kept trying, but I couldn't figure out how to do it in the fragment. enter image description here

The outline of the xml code is as follows.

<TextView
            android:id="@ id/t1"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:layout_weight="1"
            android:gravity="center"
            android:text="@string/zero" />

<Button
            android:id="@ id/b1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@drawable/button"
            android:layout_weight="1"
            android:text="@string/Click"
            style="?android:attr/buttonBarButtonStyle" />

It's my first time asking this question, so I'm very inexperienced, but if you tell me, I'll try harder. I'm sorry that I'm not good at English.

CodePudding user response：

You should use RecyclerView in this case. Your method isn'n correct

CodePudding user response：

b1.setOnClickListener { 
    t1.text = "tttt"
}

If u have only a few buttons, you can write them in xml. For more, use horizontal RecyclerView.