DigitalClock和AnalogClock两个时钟类
可以为DigitalClock设置背景图片,自定义时针,秒针,分针的样式
例子:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center_horizontal" > <!-- 定义模拟时钟 --> <AnalogClock android:layout_width="wrap_content" android:layout_height="wrap_content" /> <!-- 定义数字时钟 --> <DigitalClock android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="14pt" android:textColor="#f0f" android:drawableRight="@drawable/ic_launcher" /> <!-- 定义模拟时钟,并使用自定义表盘、时针图片 --> <AnalogClock android:layout_width="wrap_content" android:layout_height="wrap_content" android:dial="@drawable/watch" android:hand_minute="@drawable/hand" /> </LinearLayout>运行结果:
RadioGroup单选组RadioGroup.
OnCheckedChangeListener()监听单选按钮点击事件
注意:各个RadioButton之间的id不能重复,RadioButton的id与RadioGroup的id也不能重复.
RadioButton
android:button="@null"
去除RadioButton前面的圆点
ToggleButton
常用属性:
android:textOff未选中时按钮的文本
android:textOn选中时按钮的文本
android:checked="true" 该状态用于设置初始状态,true表示开,false表示关,若没有设置该状态则默认为关android:background="@drawable/toggleselector" 如果要想改变ToggleButton开和关的图片,则需要设置这个属性,toggleselector将放到下面,是一个selector配置文件监听事件:CompoundButton.OnCheckedChangeListener()
重要补充:在xml中设置文字有时候间距什么的不好控制,这个时候可以把文字写在图片里面,在xml中把texton和textoff都设置为“”
实例:
package com.light.study.android; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.CheckBox; import android.widget.RadioGroup; import android.widget.Toast; public class MainActivity extends Activity { private RadioGroup gender; private CheckBox swimming, reading, basketball; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); init(); initListener(); } private void init() { gender = (RadioGroup) findViewById(R.id.myRadioGroup); swimming = (CheckBox) findViewById(R.id.swimming); reading = (CheckBox) findViewById(R.id.reading); basketball = (CheckBox) findViewById(R.id.basketball); } private void initListener() { gender.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { if (checkedId == R.id.female) { Toast.makeText(MainActivity.this, "性别:女", Toast.LENGTH_LONG) .show(); } else if (checkedId == R.id.male) { Toast.makeText(MainActivity.this, "性别:男", Toast.LENGTH_LONG) .show(); } } }); swimming.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(MainActivity.this, "爱好:游泳", Toast.LENGTH_LONG) .show(); } }); reading.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(MainActivity.this, "爱好:阅读", Toast.LENGTH_LONG) .show(); } }); basketball.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(MainActivity.this, "爱好:篮球", Toast.LENGTH_LONG) .show(); } }); } }
<?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:gravity="center_horizontal" android:orientation="vertical" > <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="性别:" /> <!-- 建立一个RadioGroup --> <RadioGroup android:id="@+id/myRadioGroup" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" > <!-- 第一个RadioButton --> <RadioButton android:id="@+id/female" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="女" /> <!-- 第二个RadioButton --> <RadioButton android:id="@+id/male" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="男" /> </RadioGroup> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="爱好:" /> <CheckBox android:id="@+id/swimming" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="游泳" /> <CheckBox android:id="@+id/basketball" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="篮球" /> <CheckBox android:id="@+id/reading" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="阅读" /> </LinearLayout> </LinearLayout>