java程式碼

packagecom.example.myapplication;

importandroid.os.Bundle;
importandroid.text.Html;
importandroid.view.View;
importandroid.widget.Button;
importandroid.widget.EditText;
importandroid.widget.TextView;
importandroid.widget.Toast;

publicclassTextViewActivityextendsMainActivity{
privateButton btn1;
@Override
 
protectedvoidonCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.text);
btn1=findViewById(R.id.denglu);
btn1.setOnClickListener(newView.OnClickListener() {
@Override
publicvoidonClick(View view) {
Toast.makeText(TextViewActivity.this,"登陸成功",Toast.LENGTH_SHORT).show();
}
});
}
}
 

xml

<?xml version="1.0"encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="10dp">
<EditText
android:layout_width="match_parent"
android:layout_height
 
="50dp"
android:text=""
android:hint="使用者名稱:"
android:drawableLeft="@drawable/lianxiren"
android:drawablePadding="10dp"
android:maxLines="1"
android:background="@drawable/button_shape"
android:layout_marginTop="220dp"/>


<EditText
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="40dp"
android:background="@drawable/button_shape"
android:drawableLeft="@drawable/chesuo"
android:drawablePadding="10dp"
android:hint="密碼:"
android:inputType="textPassword"
android:maxLines="1"/>

<Button
android:id="@+id/denglu"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:text="點選登陸!"
android:textSize="20dp"
android:layout_marginLeft="115dp"
android:background="@drawable/button_denglu"
android:layout_marginTop="50dp"/>


</LinearLayout>