activity_main.xml
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<?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <Button android:id="@+id/button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:text="Click Me!" /> </FrameLayout> |
MainActivity.java
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package com.phaisarn.myapplication; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.Gravity; import android.view.View; import android.widget.Button; import android.widget.Toast; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button = findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast toast = Toast.makeText(getApplicationContext(), "Hello World!", Toast.LENGTH_SHORT); toast.setGravity(Gravity.TOP | Gravity.LEFT, 0, 0); toast.show(); } }); } } |
บรรทัดที่ 22 : setGravity()
ให้แสดง Toast
ที่ตำแหน่งบน ซ้าย