Basic Android tutorial: Using CheckBox in
Android
Create a
project named MyFavouriteFruitApp.
Change the
following files:
|
<?xml version="1.0"
encoding="utf-8"?>
<resources>
<string name="instruction">Please pick your
favourite fruit:</string>
<string name="app_name">FavouriteFruitApp</string>
<string name="chkAppleLabel">Apple</string>
<string name="chkOrangeLabel">Orange</string>
<string name="chkBananaLabel">Banana</string>
</resources>
|
|
<?xml version="1.0"
encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/instruction"
/>
<CheckBox
android:id="@+id/chkApple"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/chkAppleLabel" />
<CheckBox
android:id="@+id/chkOrange"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/chkOrangeLabel"
/>
<CheckBox
android:id="@+id/chkBanana"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/chkBananaLabel"
/>
</LinearLayout>
|
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package com.kent;
import
android.app.Activity;
import
android.os.Bundle;
import
android.view.View;
import
android.view.View.OnClickListener;
import
android.widget.CheckBox;
import
android.widget.Toast;
public class
FavouriteFruitAppActivity extends Activity implements OnClickListener{
private CheckBox chkApple,
chkOrange;
@Override
public void onCreate(Bundle
savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
chkApple = (CheckBox) findViewById(R.id.chkApple);
chkApple.setOnClickListener(this);
chkOrange = (CheckBox)
findViewById(R.id.chkOrange);
chkOrange.setOnClickListener(this);
}
public void onClick(View v) {
CheckBox
chkTemp = (CheckBox) v;
chkTemp.getText();
if
(chkTemp.isChecked()) {
Toast.makeText(FavouriteFruitAppActivity.this,
"You have selected
" + chkTemp.getText(),
Toast.LENGTH_SHORT).show();
}
}
}
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