void myDraw() {
float width, height;
width = getMeasuredWidth();
height = getMeasuredHeight();
canvas = holder.lockCanvas();
canvas.drawColor(Color.GREEN);
canvas.drawPath(path, paint);
holder.unlockCanvasAndPost(canvas);
}
public void onSensorChanged(String sensorStr) {
Log.v(TAG, "onSensorChanged : " + sensorStr);
String[] fs = sensorStr.split(",");
if (fs.length == 4) {
acceValusW = Float.parseFloat(fs[0]) * (BASE - 10);
// 获得x轴的值
acceValusX = Float.parseFloat(fs[1]) * (BASE - 10);
// 获得y轴的值
acceValusY = Float.parseFloat(fs[2]) * (BASE - 10);
// 获得z轴的值
acceValusZ = Float.parseFloat(fs[3]) * (BASE - 10);
// 锁定整个SurfaceView
Canvas mCanvas = mSurfaceHolder.lockCanvas();
try {
if (mCanvas != null) {
// 画笔的颜色(红)
mPaint.setColor(Color.RED);
// 画X轴的点
mCanvas.drawPoint(x, (int) (BASE + acceValusX), mPaint);
// 画笔的颜色(绿)
mPaint.setColor(Color.GREEN);
// 画Y轴的点
mCanvas.drawPoint(x, (int) (BASE * 2 + acceValusY), mPaint);
// 画笔的颜色(蓝)
mPaint.setColor(Color.CYAN);
// 画Z轴的点
mCanvas.drawPoint(x, (int) (BASE * 3 + acceValusZ), mPaint);
// 画笔的颜色(huang)
mPaint.setColor(Color.WHITE);
// 画W轴的点
mCanvas.drawPoint(x, (int) (BASE * 4 + acceValusW), mPaint);
// 横坐标+1
x++;
// 如果已经画到了屏幕的最右边
// if (x > getWindowManager().getDefaultDisplay().getWidth()) {
if (x > mCanvas.getWidth()) {
x = 0;
// 清屏
mCanvas.drawColor(Color.BLACK);
}
// 绘制完成，提交修改
mSurfaceHolder.unlockCanvasAndPost(mCanvas);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (mCanvas != null) {
// 重新锁一次
mSurfaceHolder.lockCanvas(new Rect(0, 0, 0, 0));
mSurfaceHolder.unlockCanvasAndPost(mCanvas);
}
}
}
}
public void mDraw() {
mCanvas = mHolder.lockCanvas(); // 获得画布对象,开始对画布画画
mCanvas.drawColor(++i); // 设置画布颜色为黑色
canvasMethod(mCanvas); // 调用自定义的方法,主要是在传进去的画布对象上画画
mHolder.unlockCanvasAndPost(mCanvas); // 把画布显示在屏幕上
}
/** 构造函数，主要对一些对象初始化 */
public MySurfaceView(Context context) {
super(context);
mHolder = this.getHolder(); // 获得SurfaceHolder对象
mHolder.addCallback(this); // 添加状态监听
mPaint = new Paint(); // 创建一个画笔对象
mPaint.setColor(Color.WHITE); // 设置画笔的颜色为白色
qPaint = new Paint(); // 创建一个画笔对象
qPaint.setAntiAlias(true); // 消除锯齿
qPaint.setStyle(Paint.Style.STROKE); // 设置画笔风格为描边
qPaint.setStrokeWidth(3); // 设置描边的宽度为3
qPaint.setColor(Color.GREEN); // 设置画笔的颜色为绿色
// 创建路径对象
mPath = new Path();
qPath = new Path();
tPath = new Path();
// 设置坐标为50,100
mX = 50;
mY = 100;
// 设置贝塞尔曲线的开始坐标为(10,200)
qStartX = 10;
qStartY = 200;
setFocusable(true); // 设置焦点
}
public MyView(Context context) {
super(context);
paint = new Paint();
paint.setColor(Color.BLUE);
paint.setStyle(Paint.Style.STROKE); // 设置画笔风格为描边
paint.setStrokeWidth(10);
random = new Random();
setFocusable(true);
holder = getHolder();
holder.addCallback(this);
path = new Path();
}
protected void displayVideoFrame(SurfaceHolder holder) {
if (videoFormat != null) {
try {
ISurfaceWrapper surface = AndroidMediaObjectFactory.Converter.convert(holder.getSurface());
mediaFileInfo.setOutputSurface(surface);
ByteBuffer buffer = ByteBuffer.allocate(1);
mediaFileInfo.getFrameAtPosition(100, buffer);
} catch (Exception e) {
String message = (e.getMessage() != null) ? e.getMessage() : e.toString();
showMessageBox(
message,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {}
});
}
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.gatt_services_characteristics);
final Intent intent = getIntent();
mDeviceName = intent.getStringExtra(EXTRAS_DEVICE_NAME);
mDeviceAddress = intent.getStringExtra(EXTRAS_DEVICE_ADDRESS);
// Sets up UI references.
mConnectionState = (TextView) findViewById(R.id.connection_state);
// is serial present?
isSerial = (TextView) findViewById(R.id.isSerial);
msgEdit = (EditText) findViewById(R.id.editText);
returnText = (TextView) findViewById(R.id.returnText);
sendButton = (Button) findViewById(R.id.sendButton);
// timeButton = (Button) findViewById(R.id.timeButton);
sendButton.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
if (characteristicReady) {
StringBuffer sb = new StringBuffer("m");
sb.append(msgEdit.getText()).append("\n");
sendMessage(sb.toString());
}
}
});
// timeButton.setOnClickListener(new View.OnClickListener() {
//
// @Override
// public void onClick(View v) {
// if (characteristicReady) {
// StringBuffer sb = new StringBuffer("t");
// Date now = new Date();
// sb.append(DATE_FORMAT.format(now)).append("\n");
//
// sendMessage(sb.toString());
// }
// }
// });
infoButton = (ImageView) findViewById(R.id.infoImage);
infoButton.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
iascDialog();
}
});
mSurfaceView = (SurfaceView) findViewById(R.id.surfaceView);
mSurfaceHolder = mSurfaceView.getHolder();
mSurfaceHolder.addCallback(new MyHolder());
mPaint = new Paint();
// 画笔的粗细
mPaint.setStrokeWidth(5.0f);
getActionBar().setTitle(mDeviceName);
getActionBar().setDisplayHomeAsUpEnabled(true);
Intent gattServiceIntent = new Intent(this, BluetoothLeService.class);
bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE);
}