1.项目：物联网的一个实践项目-----智能台灯安卓APP
2.功能：APP通过tcp/ip协议与单片机（配置好ESP8266WiFi模块的单片机）进行通信，也就是说，APP可以通过tcp/ip协议控制单片机去开关灯或者调节灯的亮度。只要APP所在手机和单片机是在同一个局域网里，即可实现控制。
3.软件效果：
硬件效果与上图类似。
4.APP代码实现：
（1）HomeActivity.java
public class HomeActivity extends AppCompatActivity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
}
}（2）activity_home.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.myclient.HomeActivity">
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/home"
android:name="com.example.myclient.TestFragment"/>
</RelativeLayout>
(3)TestFragment.java
public class TestFragment extends Fragment {
private Button startButton;
private EditText IPText;
private Context mContext;
private boolean isConnecting=false;
private Thread mThreadClient=null;
private Socket mSocketClient=null;
private static BufferedReader mBufferedReaderClient=null;
private static PrintWriter mPrintWriterClient=null;
private String res="";
private static TextView recvText,recvText1,recvText2;
private ImageView imageView;
private TempControlView tempControl;
@SuppressLint("SetTextI18n")
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View view = inflater.inflate(R.layout.fragment_test, null);
mContext=getContext();
StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
.detectDiskReads()
.detectDiskWrites()
.detectNetwork()
.penaltyLog()
.build()
);
StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()
.detectLeakedSqlLiteObjects()
.penaltyLog()
.penaltyDeath()
.build());
IPText= view.findViewById(R.id.IPText);
// IPText.setText("10.10.10.11:8080");
IPText.setText("192.168.1.127:8080");
startButton= view.findViewById(R.id.StartConnect);
startButton.setOnClickListener(StartClickListener);
recvText= view.findViewById(R.id.tv1);
recvText1= view.findViewById(R.id.textView3);
recvText2= view.findViewById(R.id.textView4);
imageView=view.findViewById(R.id.light);
tempControl = view.findViewById(R.id.temp_control);
// 设置三格代表温度1度
tempControl.setAngleRate(1);
tempControl.setTemp(0, 5, 0);
//设置旋钮是否可旋转
tempControl.setCanRotate(true);
tempControl.setOnTempChangeListener(new TempControlView.OnTempChangeListener() {
@Override
public void change(int temp) {
switch (temp){
case 0:
if ( send("*C")){
imageView.setImageResource(R.drawable.light1);
}
break;
case 1:
if ( send("*1")){
imageView.setImageResource(R.drawable.light2);
}
break;
case 2:
if ( send("*2")){
imageView.setImageResource(R.drawable.light3);
}
break;
case 3:
if ( send("*3")){
imageView.setImageResource(R.drawable.light4);
}
break;
case 4:
if ( send("*4")){
imageView.setImageResource(R.drawable.light5);
}
break;
case 5:
if ( send("*5")){
imageView.setImageResource(R.drawable.light6);
}
break;
}
}
});
tempControl.setOnClickListener(new TempControlView.OnClickListener() {
@Override
public void onClick(int temp) {
switch (temp){
case 0:
if ( send("*C")){
imageView.setImageResource(R.drawable.light1);
}
break;
case 1:
if ( send("*1")){
imageView.setImageResource(R.drawable.light2);
}
break;
case 2:
if ( send("*2")){
imageView.setImageResource(R.drawable.light3);
}
break;
case 3:
if ( send("*3")){
imageView.setImageResource(R.drawable.light4);
}
break;
case 4:
if ( send("*4")){
imageView.setImageResource(R.drawable.light5);
}
break;
case 5:
if ( send("*5")){
imageView.setImageResource(R.drawable.light6);
}
break;
}
}
});
return view;
}
//连接到智能衣柜
private View.OnClickListener StartClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(isConnecting)
{
isConnecting=false;
if(mSocketClient!=null)
{
try{
mSocketClient.close();
mSocketClient = null;
if (mPrintWriterClient!=null){
mPrintWriterClient.close();
mPrintWriterClient = null;
}
mThreadClient.interrupt();
startButton.setText("开始连接");
IPText.setEnabled(true);//可以输入ip和端口号
recvText.setText("断开连接\n");
imageView.setImageResource(R.drawable.light1);
} catch (IOException e) {
e.printStackTrace();
}
}
}else
{
mThreadClient = new Thread(mRunnable);
mThreadClient.start();
}
}
};
private Runnable mRunnable = new Runnable() {
@Override
public void run() {
String msgText = IPText.getText().toString();
if(msgText.length()<=0)
{
Message msg = new Message();
msg.what = 5;
mHandler.sendMessage(msg);
return;
}
int start = msgText.indexOf(":");
if((start==-1)||(start+1>=msgText.length()))
{
Message msg = new Message();
msg.what = 6;
mHandler.sendMessage(msg);
return;
}
String sIP= msgText.substring(0,start);
String sPort = msgText.substring(start+1);
int port = Integer.parseInt(sPort);
try
{
//连接服务器
mSocketClient = new Socket();
SocketAddress socAddress = new InetSocketAddress(sIP, port);
mSocketClient.connect(socAddress, 2000);//设置超时时间为2秒
//取得输入、输出流
mBufferedReaderClient=new BufferedReader(new InputStreamReader(mSocketClient.getInputStream()));
mPrintWriterClient=new PrintWriter(mSocketClient.getOutputStream(),true);
Message msg = new Message();
msg.what = 1;
mHandler.sendMessage(msg);
}catch (Exception e) {
Message msg = new Message();
msg.what = 2;
mHandler.sendMessage(msg);
return;
}
char[] buffer = new char[256];
int count = 0;
while(true)
{
try
{
if((count = mBufferedReaderClient.read(buffer))>0)
{
res = getInfoBuff(buffer,count)+"\n";
Message msg = new Message();
msg.what = 4;
mHandler.sendMessage(msg);
}
}catch (Exception e) {
// TODO: handle exception
Message msg = new Message();
msg.what = 3;
mHandler.sendMessage(msg);
}
}
}
};
@SuppressLint("HandlerLeak")
Handler mHandler = new Handler()
{
@SuppressLint("SetTextI18n")
public void handleMessage(Message msg)
{
super.handleMessage(msg);
if(msg.what==4)
{
char []arrs=null;
arrs=res.toCharArray();//接收来自服务器的字符串
if (arrs.length>=9) {
recvText1.setText("温度: " + arrs[2] + arrs[3] + "℃" + ' ');
recvText2.setText("湿度: " + arrs[7] + arrs[8] + "%" + ' ');
}else {
showDialog("收到格式错误的数据");
}
// if (arrs[0]=='T'){
// recvText1.setText("温度: "+arrs[3] + arrs[4] + "℃" + ' ' );
// }else if (arrs[0]=='R'){
// recvText2.setText("湿度: "+arrs[3] + arrs[4] + "%" + ' ' );
// }
}else if (msg.what==2){
showDialog("连接失败，服务器走丢了");
startButton.setText("开始连接");
}else if (msg.what==1){
showDialog("连接成功！");
recvText.setText("已连接台灯\n");
IPText.setEnabled(false);//锁定ip地址和端口号
isConnecting = true;
startButton.setText("停止连接");
}else if (msg.what==3){
// recvText.setText("连接已断开\n");
}else if (msg.what==5){
recvText.setText("IP和端口号不能为空\n");
}
else if (msg.what==6){
recvText.setText("IP地址不合法\n");
}
}
};
private void showDialog(String msg) {
AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
builder.setIcon(android.R.drawable.ic_dialog_info);
builder.setTitle(msg);
builder.setCancelable(false);
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
builder.create().show();
}
private String getInfoBuff(char[] buff,int count)
{
char[] temp = new char[count];
for (int i = 0; i < count; i++) {
temp[i]=buff[i];
}
return new String(temp);
}
private boolean send(String msg){
if(isConnecting&&mSocketClient!=null)
{
String msgText =msg;//发送给单片机的某个命令
try
{
mPrintWriterClient.print(msgText);
mPrintWriterClient.flush();
return true;
}catch (Exception e) {
// TODO: handle exception
Toast.makeText(mContext, "发送异常"+e.getMessage(), Toast.LENGTH_SHORT).show();
}
}else
{
showDialog("没有连接！");
return false;
}
return false;
}
}(4)fragment_test.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/background"
android:orientation="vertical"
tools:context=".HomeActivity" >
<LinearLayout
android:layout_marginTop="10dp"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<EditText
android:layout_marginLeft="10dp"
android:layout_marginRight="5dp"
android:layout_gravity="center"
android:layout_weight="1"
android:background="#CFCACA"
android:id="@+id/IPText"
android:layout_width="match_parent"
android:layout_height="40dp"
android:ems="10"
android:textSize="20dp"
android:hint="请输入衣柜服务端的IP地址" />
<Button
android:layout_marginRight="10dp"
android:layout_weight="2"
android:id="@+id/StartConnect"
android:background="#C3C7DA"
android:layout_width="match_parent"
android:layout_height="40dp"
android:textSize="20dp"
android:text="连接台灯" />
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/tv1"
android:layout_marginTop="10dp"
android:layout_marginLeft="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#ffffff"
android:text="欢迎使用智能台灯！"
android:textSize="20dp" />
</RelativeLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<com.example.myclient.TempControlView
android:id="@+id/temp_control"
android:layout_width="250dp"
android:layout_height="250dp"
/>
<ImageView
android:layout_marginLeft="20dp"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/light"
android:src="@drawable/light1"/>
</LinearLayout>
<LinearLayout
android:layout_marginLeft="10dp"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TextView
android:layout_weight="1"
android:textSize="25sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#810303"
android:text="温度：0℃"
android:id="@+id/textView3" />
<TextView
android:layout_weight="1"
android:textSize="25sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="湿度：0%"
android:textColor="#810303"
android:id="@+id/textView4" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
(5)TempControlView.java
public class TempControlView extends View {
// 控件宽
private int width;
// 控件高
private int height;
// 刻度盘半径
private int dialRadius;
// 圆弧半径
private int arcRadius;
// 刻度高
private int scaleHeight = dp2px(10);
// 刻度盘画笔
private Paint dialPaint;
// 圆弧画笔
private Paint arcPaint;
// 标题画笔
private Paint titlePaint;
// 温度标识画笔
private Paint tempFlagPaint;
// 旋转按钮画笔
private Paint buttonPaint;
// 温度显示画笔
private Paint tempPaint;
// 文本提示
private String title = "档数调节";
// 温度
private int temperature = 15;
// 最低温度
private int minTemp = 15;
// 最高温度
private int maxTemp = 5;
// 四格代表温度1度
private int angleRate = 4;
// 每格的角度
private float angleOne = (float) 270 / (maxTemp - minTemp) / angleRate;
// 按钮图片
private Bitmap buttonImage = BitmapFactory.decodeResource(getResources(),
R.mipmap.btn_rotate);
// 按钮图片阴影
private Bitmap buttonImageShadow = BitmapFactory.decodeResource(getResources(),
R.mipmap.btn_rotate_shadow);
// 抗锯齿
private PaintFlagsDrawFilter paintFlagsDrawFilter;
// 温度改变监听
private OnTempChangeListener onTempChangeListener;
// 控件点击监听
private OnClickListener onClickListener;
// 以下为旋转按钮相关
// 当前按钮旋转的角度
private float rotateAngle;
// 当前的角度
private float currentAngle;
/**
* 是否可以旋转
*/
private boolean canRotate = false;
public TempControlView(Context context) {
this(context, null);
}
public TempControlView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public TempControlView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
private void init() {
dialPaint = new Paint();
dialPaint.setAntiAlias(true);
dialPaint.setStrokeWidth(dp2px(2));
dialPaint.setStyle(Paint.Style.STROKE);
arcPaint = new Paint();
arcPaint.setAntiAlias(true);
arcPaint.setColor(Color.parseColor("#3CB7EA"));
arcPaint.setStrokeWidth(dp2px(2));
arcPaint.setStyle(Paint.Style.STROKE);
titlePaint = new Paint();
titlePaint.setAntiAlias(true);
titlePaint.setTextSize(sp2px(20));
titlePaint.setColor(Color.parseColor("#FFFFFF"));
titlePaint.setStyle(Paint.Style.STROKE);
tempFlagPaint = new Paint();
tempFlagPaint.setAntiAlias(true);
tempFlagPaint.setTextSize(sp2px(25));
tempFlagPaint.setColor(Color.parseColor("#FFFFFF"));
tempFlagPaint.setStyle(Paint.Style.STROKE);
buttonPaint = new Paint();
tempFlagPaint.setAntiAlias(true);
paintFlagsDrawFilter = new PaintFlagsDrawFilter(0, Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
tempPaint = new Paint();
tempPaint.setAntiAlias(true);
tempPaint.setTextSize(sp2px(60));
tempPaint.setColor(Color.parseColor("#3B434E"));
tempPaint.setStyle(Paint.Style.STROKE);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
// 控件宽、高
width = height = Math.min(h, w);
// 刻度盘半径
dialRadius = width / 2 - dp2px(20);
// 圆弧半径
arcRadius = dialRadius - dp2px(20);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
drawScale(canvas);
drawArc(canvas);
drawText(canvas);
drawButton(canvas);
drawTemp(canvas);
}
/**
* 绘制刻度盘
*
* @param canvas 画布
*/
private void drawScale(Canvas canvas) {
canvas.save();
canvas.translate(getWidth() / 2, getHeight() / 2);
// 顺时针旋转135-2度
canvas.rotate(133);
//未达到的温度
dialPaint.setColor(Color.parseColor("#00ff00"));
for (int i = angleRate * maxTemp; i > angleRate * temperature; i--) {
canvas.drawLine(0, -dialRadius, 0, -dialRadius + scaleHeight, dialPaint);
canvas.rotate(-angleOne);
}
//已经达到的温度
dialPaint.setColor(Color.parseColor("#E37364"));
for (int i = temperature * angleRate; i >= minTemp * angleRate; i--) {
canvas.drawLine(0, -dialRadius, 0, -dialRadius + scaleHeight, dialPaint);
canvas.rotate(-angleOne);
}
canvas.restore();
}
/**
* 绘制刻度盘下的圆弧
* @param canvas 画布
*/
private void drawArc(Canvas canvas) {
canvas.save();
canvas.translate(getWidth() / 2, getHeight() / 2);
canvas.rotate(135 + 2);
RectF rectF = new RectF(-arcRadius, -arcRadius, arcRadius, arcRadius);
canvas.drawArc(rectF, 0, 265, false, arcPaint);
canvas.restore();
}
/**
* 绘制标题与温度标识
* @param canvas 画布
*/
private void drawText(Canvas canvas) {
canvas.save();
// 绘制标题
float titleWidth = titlePaint.measureText(title);
canvas.drawText(title, (width - titleWidth) / 2, dialRadius * 2 + dp2px(15), titlePaint);
// 绘制最小温度标识
// 最小温度如果小于10，显示为0x
String minTempFlag = "";
if (minTemp <= 0) {
minTempFlag = minTemp + "";
} else {
minTempFlag = minTemp < 10 ? "0" + minTemp : minTemp + "";
}
float tempFlagWidth = titlePaint.measureText(maxTemp + "");
canvas.rotate(55, width / 2, height / 2);
canvas.drawText(minTempFlag, (width - tempFlagWidth) / 2, height + dp2px(5), tempFlagPaint);
// 绘制最大温度标识
canvas.rotate(-105, width / 2, height / 2);
canvas.drawText(maxTemp + "", (width - tempFlagWidth) / 2, height + dp2px(5), tempFlagPaint);
canvas.restore();
}
/**
* 绘制旋转按钮
* @param canvas 画布
*/
private void drawButton(Canvas canvas) {
// 按钮宽高
int buttonWidth = buttonImage.getWidth();
int buttonHeight = buttonImage.getHeight();
// 按钮阴影宽高
int buttonShadowWidth = buttonImageShadow.getWidth();
int buttonShadowHeight = buttonImageShadow.getHeight();
// 绘制按钮阴影
canvas.drawBitmap(buttonImageShadow, (width - buttonShadowWidth) / 2,
(height - buttonShadowHeight) / 2, buttonPaint);
Matrix matrix = new Matrix();
// 设置按钮位置，移动到控件中心
matrix.setTranslate((width - buttonWidth) / 2, (height - buttonHeight) / 2);
// 设置旋转角度，旋转中心为控件中心，当前也是按钮中心
matrix.postRotate(45 + rotateAngle, width / 2, height / 2);
//设置抗锯齿
canvas.setDrawFilter(paintFlagsDrawFilter);
canvas.drawBitmap(buttonImage, matrix, buttonPaint);
}
/**
* 绘制温度
*
* @param canvas 画布
*/
private void drawTemp(Canvas canvas) {
canvas.save();
canvas.translate(getWidth() / 2, getHeight() / 2);
float tempWidth = tempPaint.measureText(temperature + "");
float tempHeight = (tempPaint.ascent() + tempPaint.descent()) / 2;
if (temperature==0){
canvas.drawText("off", -tempWidth-30 - dp2px(5), -tempHeight, tempPaint);
}else{
canvas.drawText(temperature + "档", -tempWidth-30 - dp2px(5), -tempHeight, tempPaint);
}
canvas.restore();
}
private boolean isDown;
private boolean isMove;
@Override
public boolean onTouchEvent(MotionEvent event) {
if (!canRotate) {
return super.onTouchEvent(event);
} else {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
isDown = true;
float downX = event.getX();
float downY = event.getY();
currentAngle = calcAngle(downX, downY);
break;
case MotionEvent.ACTION_MOVE:
isMove = true;
float targetX;
float targetY;
downX = targetX = event.getX();
downY = targetY = event.getY();
float angle = calcAngle(targetX, targetY);
// 滑过的角度增量
float angleIncreased = angle - currentAngle;
// 防止越界
if (angleIncreased < -270) {
angleIncreased = angleIncreased + 360;
} else if (angleIncreased > 270) {
angleIncreased = angleIncreased - 360;
}
IncreaseAngle(angleIncreased);
currentAngle = angle;
invalidate();
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP: {
if (isDown) {
if (isMove) {
// 纠正指针位置
rotateAngle = (float) ((temperature - minTemp) * angleRate * angleOne);
invalidate();
// 回调温度改变监听
if (onTempChangeListener != null) {
onTempChangeListener.change(temperature);
}
isMove = false;
} else {
// 点击事件
if (onClickListener != null) {
onClickListener.onClick(temperature);
}
}
isDown = false;
}
break;
}
}
return true;
}
}
/**
* 以按钮圆心为坐标圆点，建立坐标系，求出(targetX, targetY)坐标与x轴的夹角
*
* @param targetX x坐标
* @param targetY y坐标
* @return (targetX, targetY)坐标与x轴的夹角
*/
private float calcAngle(float targetX, float targetY) {
float x = targetX - width / 2;
float y = targetY - height / 2;
double radian;
if (x != 0) {
float tan = Math.abs(y / x);
if (x > 0) {
if (y >= 0) {
radian = Math.atan(tan);
} else {
radian = 2 * Math.PI - Math.atan(tan);
}
} else {
if (y >= 0) {
radian = Math.PI - Math.atan(tan);
} else {
radian = Math.PI + Math.atan(tan);
}
}
} else {
if (y > 0) {
radian = Math.PI / 2;
} else {
radian = -Math.PI / 2;
}
}
return (float) ((radian * 180) / Math.PI);
}
/**
* 增加旋转角度
*
* @param angle 增加的角度
*/
private void IncreaseAngle(float angle) {
rotateAngle += angle;
if (rotateAngle < 0) {
rotateAngle = 0;
} else if (rotateAngle > 270) {
rotateAngle = 270;
}
// 加上0.5是为了取整时四舍五入
temperature = (int) ((rotateAngle / angleOne) / angleRate + 0.5) + minTemp;
}
/**
* 设置几格代表1度，默认4格
*
* @param angleRate 几格代表1度
*/
public void setAngleRate(int angleRate) {
this.angleRate = angleRate;
}
/**
* 设置温度
*
* @param temp 设置的温度
*/
public void setTemp(int temp) {
setTemp(minTemp, maxTemp, temp);
}
/**
* 设置温度
*
* @param minTemp 最小温度
* @param maxTemp 最大温度
* @param temp 设置的温度
*/
public void setTemp(int minTemp, int maxTemp, int temp) {
this.minTemp = minTemp;
this.maxTemp = maxTemp;
if (temp < minTemp) {
this.temperature = minTemp;
} else {
this.temperature = temp;
}
// 计算每格的角度
angleOne = (float) 270 / (maxTemp - minTemp) / angleRate;
// 计算旋转角度
rotateAngle = (float) ((temp - minTemp) * angleRate * angleOne);
invalidate();
}
/**
* 设置旋钮是否可以旋转
*
* @param canRotate
*/
public void setCanRotate(boolean canRotate) {
this.canRotate = canRotate;
}
public boolean getCanRotate() {
return this.canRotate;
}
/**
* 设置温度改变监听
*
* @param onTempChangeListener 监听接口
*/
public void setOnTempChangeListener(OnTempChangeListener onTempChangeListener) {
this.onTempChangeListener = onTempChangeListener;
}
/**
* 设置点击监听
*
* @param onClickListener 点击回调接口
*/
public void setOnClickListener(OnClickListener onClickListener) {
this.onClickListener = onClickListener;
}
/**
* 温度改变监听接口
*/
public interface OnTempChangeListener {
/**
* 回调方法
*
* @param temp 温度
*/
void change(int temp);
}
/**
* 点击回调接口
*/
public interface OnClickListener {
/**
* 点击回调方法
*
* @param temp 温度
*/
void onClick(int temp);
}
public int dp2px(float dp) {
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,
getResources().getDisplayMetrics());
}
private int sp2px(float sp) {
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, sp,
getResources().getDisplayMetrics());
}
}(6)manifests
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.myclient">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme"
tools:ignore="AllowBackup,GoogleAppIndexingWarning">
<activity android:name=".HomeActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
需要的图片分别是light1~5.png,backgronud.png
