Android: click a button to bring up the content that is not (or exists) in the original layout. The following example shows how to delete the original layout content.

Mainly involves (1) monitoring a widget in the layout

(2) set display and delete parameters in the layout File

There are three visibility parameters. Here I only set one, which is visible.

android:visibility="visible"

The rest is the same as its usage.

(3) After listening to the control in the code, reset the visibility parameter.

: The edittext disappears after you click the button.

(1) Before clicking the Advanced button

(2) Click the Advanced button.

(1) Layout File

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(2) sample code:

package com.example.effectone;import android.os.Bundle;import android.provider.Settings.System;import android.R.string;import android.app.Activity;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity {private EditText   eText = null;private  Button button =null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);eText = (EditText)findViewById(R.id.serveip);button =(Button)findViewById(R.id.gaoji);button.setOnClickListener(new  OnClickListener() {public void onClick(View v) {Button but=(Button)v;  switch (but.getId()) {case R.id.gaoji:  eText.setVisibility(View.INVISIBLE);default:break;}}});}}