ไฟล์ที่เกี่ยวข้อง
- activity_main.xml
- MainActivity.java
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.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/layoutMain" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constraintTop_toTopOf="parent"> </LinearLayout> </androidx.constraintlayout.widget.ConstraintLayout>
MainActivity.java
package com.phaisarn.myapplication; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.widget.LinearLayout; import android.widget.TextView; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // creating TextView programmatically TextView textView = new TextView(this); textView.setTextSize(20f); textView.setText("This is a dynamic TextView generated programmatically in Java"); // add TextView to LinearLayout LinearLayout layoutMain = findViewById(R.id.layoutMain); layoutMain.addView(textView); } }
บรรทัดที่ 22 : ถ้างถึง LinearLayout
บรรทัดที่ 23 : เอา textView
ใส่เข้าไปใน LinearLayout