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安卓学习-界面-ui-RadioButton CheckBox

RadioButton  CheckBox

 

下面例子演示了2个功能,一个是RadioButton选择时的事件,还有一个是Button按钮点击查看这2个控件的属性

 

XML代码

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:layout_margin="10dp"     >    <TableLayout        android:layout_width="match_parent"        android:layout_height="match_parent" >        <TableRow            android:id="@+id/tableRow1"            android:layout_width="wrap_content"            android:layout_height="wrap_content" >            <TextView                android:id="@+id/textView1"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="right"                android:text="性别"                android:textAppearance="?android:attr/textAppearanceLarge" />            <RadioGroup                android:id="@+id/radioGroup1"                >                <RadioButton                    android:id="@+id/radioButton1"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:text="男" />                <RadioButton                    android:id="@+id/radioButton2"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:text="女" />            </RadioGroup>        </TableRow>        <TableRow            android:id="@+id/tableRow3"            android:layout_width="wrap_content"            android:layout_height="wrap_content" >            <TextView                android:id="@+id/textView2"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="是否本地人"                android:textAppearance="?android:attr/textAppearanceLarge" />            <CheckBox                android:id="@+id/checkBox1"                android:layout_width="wrap_content"                android:layout_height="wrap_content" />        </TableRow>        <Button            android:id="@+id/button1"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="确定" />    </TableLayout></RelativeLayout>

 

java代码

public class MainActivity extends Activity {        Button btn;    RadioGroup radioGroup1;    CheckBox checkBox1;        protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                btn=(Button)findViewById(R.id.button1);        radioGroup1=(RadioGroup)findViewById(R.id.radioGroup1);        checkBox1=(CheckBox)findViewById(R.id.checkBox1);                //按钮点击事件        btn.setOnClickListener(new OnClickListener() {            public void onClick(View v) {                int checkedId=radioGroup1.getCheckedRadioButtonId();                if(checkedId>0){                    RadioButton r=(RadioButton)findViewById(checkedId);                    Toast.makeText(getApplicationContext(), r.getText(), Toast.LENGTH_SHORT).show();                }                Toast.makeText(getApplicationContext(), ""+checkBox1.isChecked(), Toast.LENGTH_SHORT).show();                            }        });                //radioGruop的选择事件        radioGroup1.setOnCheckedChangeListener(new OnCheckedChangeListener() {            public void onCheckedChanged(RadioGroup group, int checkedId) {                RadioButton r=(RadioButton)findViewById(checkedId);                Toast.makeText(getApplicationContext(), "你选择的是"+r.getText(), Toast.LENGTH_SHORT).show();            }        });            }}

 

安卓学习-界面-ui-RadioButton CheckBox