android13打基础: 控件checkbox

测试checkbox的activity

// todo: 高级控件checkbox
public class Ch4_CheckBoxActivity extends AppCompatActivityimplements CompoundButton.OnCheckedChangeListener {@Overrideprotected void onCreate(@Nullable Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_checkbox_ch4);CheckBox ck_system = findViewById(R.id.ch4_ck_system);CheckBox ck_custom = findViewById(R.id.ch4_ck_custom);ck_system.setOnCheckedChangeListener(this);ck_custom.setOnCheckedChangeListener(this);}@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {String desc = String.format("你%s了这个Checkbox", isChecked ? "勾选" : "取消勾选");buttonView.setText(desc);}// 定义一个勾选监听器private class CheckListener implements CompoundButton.OnCheckedChangeListener {// 在用户点击复选框时触发@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {String desc = String.format("您勾选了控件%d，状态为%b", buttonView.getId(), isChecked);// 在CheckBoxActivity中显示Toast，显示描述信息Toast.makeText(Ch4_CheckBoxActivity.this, desc, Toast.LENGTH_LONG).show();}}
}

布局文件

<?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"><CheckBoxandroid:id="@+id/ch4_ck_system"android:layout_width="match_parent"android:layout_height="wrap_content"android:checked="false"android:padding="5dp"android:text="这是系统的checkbox"android:textColor="@color/black"android:textSize="17sp" /><CheckBoxandroid:id="@+id/ch4_ck_custom"android:layout_width="match_parent"android:layout_height="wrap_content"android:button="@mipmap/ic_launcher_round"android:checked="false"android:padding="5dp"android:text="这个checkbox换了图标"android:textColor="@color/black"android:textSize="17sp" /></LinearLayout>

点击checkbox