友善之臂Mini6410之Android开发学习笔记（1）-LED Demo

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友善之臂Mini6410之Android开发学习笔记源码同步更新，请使用git工具进行同步。关于Git工具更多信息，请参考：http://progit.org/book/zh/

git clone https://code.google.com/p/androiddemoformini6410/

LEDActivity.java

package com.mini6410.LED;import com.friendlyarm.AndroidSDK.HardwareControler;import com.mini6410.R;import android.app.Activity;import android.os.Bundle;import android.widget.CompoundButton;import android.widget.ToggleButton;/** *  * ClassName:LEDActivity * Reason: LED Demo * * @author   snowdream * @version   * @since    Ver 1.1 * @Date 20112012-03-1116:07 * * @see   */public class LEDActivity extends Activity implements ToggleButton.OnCheckedChangeListener {/*四个LED灯，编号ID依次为：LED 0，LED_1，LED_2，LED_3*/public static final int LED_0 = 0;public static final int LED_1 = 1;public static final int LED_2 = 2;public static final int LED_3 = 3;/*LED灯的状态： ON 表示点亮， OFF表示熄灭*/public static final int OFF = 0;public static final int ON = 1;private int mledID = LED_0; private int mledState = OFF;private boolean mStop = false;/*LED编号数组*/private int[] mleds = new int[]{LED_0,LED_1,LED_2,LED_3};/*5个开关按钮*/private ToggleButton mToggleButton_led0 = null;private ToggleButton mToggleButton_led1 = null;private ToggleButton mToggleButton_led2 = null;private ToggleButton mToggleButton_led3 = null;private ToggleButton mToggleButton_ledrandom = null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.leddemo);initUI();}/** *  * initUI: 初始化UI * * @param    * @return      * @throws  */public void initUI(){mToggleButton_led0 = (ToggleButton)findViewById(R.id.button_led0);mToggleButton_led1 = (ToggleButton)findViewById(R.id.button_led1);mToggleButton_led2 = (ToggleButton)findViewById(R.id.button_led2);mToggleButton_led3 =  (ToggleButton)findViewById(R.id.button_led3);mToggleButton_ledrandom = (ToggleButton)findViewById(R.id.button_ledrandom);mToggleButton_led0.setOnCheckedChangeListener(this);mToggleButton_led1.setOnCheckedChangeListener(this);mToggleButton_led2.setOnCheckedChangeListener(this);mToggleButton_led3.setOnCheckedChangeListener(this);mToggleButton_ledrandom.setOnCheckedChangeListener(this);}/** *  * onCheckedChanged: 开关按钮监听器 * * @param   buttonView 当前被按下的按钮对象；isChecked表示该按钮的开关状态 * @return      * @throws  */public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {ToggleButton mToggleButton = (ToggleButton)buttonView;if(isChecked)mledState = ON;elsemledState = OFF;switch (mToggleButton.getId()) {case R.id.button_led0:mledID = LED_0;setLedState(mledID, mledState);break;case R.id.button_led1:mledID = LED_1;setLedState(mledID, mledState);break;case R.id.button_led2:mledID = LED_2;setLedState(mledID, mledState);break;case R.id.button_led3:mledID = LED_3;setLedState(mledID, mledState);break;case R.id.button_ledrandom:if(isChecked){mStop = false;RandomLight();}else{mStop = true;setALlLightsOff();}break;default:break;}}/** *  * setLedState: 设置LED灯的开关 * * @param   ledID LED灯编号；ledState LED灯的开关状态 * @return     true，表示操作成功；否则返回 false。 * @throws  */public boolean setLedState(int ledID, int ledState){boolean ret = false;int result = -1;result = HardwareControler.setLedState(ledID, ledState);if(result == 0)ret = true;elseret = false;return ret;}/** *  * RandomLight: 随机点亮LED灯 * * @param   * @return      * @throws  */public void RandomLight(){new Thread(){int mledNum =  mleds.length;int mrandom = 0;@Overridepublic void run() {while(!mStop){/*从0 1 2 3范围内产生一个整数随机数*/mrandom = (int)(Math.random()*(mledNum));/*随机点亮一盏LED灯，然后关闭其他的LED灯*/for(int i = 0; i <mleds.length; i++){if(i == mrandom){setLedState(mleds[i], ON);}else{setLedState(mleds[i], OFF);}}try {sleep(200);} catch (InterruptedException e) {e.printStackTrace();}}}}.start();}/** *  * setALlLightsOff: 熄灭全部的LED灯 * * @param   * @return      * @throws  */public void setALlLightsOff(){for(int i = 0; i <mleds.length; i++){setLedState(mleds[i], OFF);}}/** *  * setALlLightsOn: 点亮全部的LED灯 * * @param   * @return      * @throws  */public void setALlLightsOn(){for(int i = 0; i <mleds.length; i++){setLedState(mleds[i], ON);}}}

leddemo.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" >    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal" >        <LinearLayout            android:id="@+id/linear_led0"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_margin="5dip"            android:orientation="vertical" >            <TextView                android:id="@+id/textview_led0"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center"                android:text="@string/led0" >            </TextView>            <ToggleButton                android:id="@+id/button_led0"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                 android:textOff="@string/textoff"                android:textOn="@string/texton" >            </ToggleButton>        </LinearLayout>        <LinearLayout            android:id="@+id/linear_led1"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_margin="5dip"            android:orientation="vertical" >            <TextView                android:id="@+id/textview_led1"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center"                android:text="@string/led1" >            </TextView>            <ToggleButton                android:id="@+id/button_led1"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                 android:textOff="@string/textoff"                android:textOn="@string/texton" >            </ToggleButton>        </LinearLayout>        <LinearLayout            android:id="@+id/linear_led2"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_margin="5dip"            android:orientation="vertical" >            <TextView                android:id="@+id/textview_led2"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center"                android:text="@string/led2" >            </TextView>            <ToggleButton                android:id="@+id/button_led2"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                 android:textOff="@string/textoff"                android:textOn="@string/texton" >            </ToggleButton>        </LinearLayout>        <LinearLayout            android:id="@+id/linear_led3"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_margin="5dip"            android:orientation="vertical" >            <TextView                android:id="@+id/textview_led3"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="center"                android:text="@string/led3" >            </TextView>            <ToggleButton                android:id="@+id/button_led3"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:textOff="@string/textoff"                android:textOn="@string/texton" >            </ToggleButton>        </LinearLayout>    </LinearLayout>    <LinearLayout        android:id="@+id/linear_ledrandom"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_margin="5dip"        android:orientation="vertical" >        <TextView            android:id="@+id/textview_ledrandom"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="center"            android:text="@string/ledrandom" >        </TextView>        <ToggleButton            android:id="@+id/button_ledrandom"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="center"            android:textOff="@string/textoff"            android:textOn="@string/texton" >        </ToggleButton>    </LinearLayout></LinearLayout>

预览效果：