คำอธิบายดูที่ Kotlin
activity_main.xml
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<?xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout 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" tools:context=".MainActivity"> <LinearLayout android:id="@+id/ll_main_layout" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" android:orientation="vertical"> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:text="This is a EditText generated from xml" /> </LinearLayout> </android.support.constraint.ConstraintLayout> |
MainActivity.java
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package com.phaisarns.myapplication; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.ViewGroup; import android.widget.EditText; import android.widget.LinearLayout; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); EditText editText = new EditText(this); // setting layout_width and layout_height using layout parameters LinearLayout.LayoutParams params = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); editText.setLayoutParams(params); editText.setHint("Enter Text"); // add EditText to LinearLayout LinearLayout ll_main_layout = findViewById(R.id.ll_main_layout); ll_main_layout.addView(editText); } } |