Android 手机应用的开发经验—QR生成器

核心提示：这两行代码的意思是canvasBmp是一个刚好canvas大小的空Bitmap ，Canvas画完该会自动保存到canvasBmp中，Android 手机应用的开发经验—QR生成器(11)，Java代码public void onDraw(Canvas mCanvas01) {super.onDraw(mCanvas0

这两行代码的意思是canvasBmp是一个刚好canvas大小的空Bitmap ，Canvas画完该会自动保存到canvasBmp中。

Java代码

public void onDraw(Canvas mCanvas01) {

super.onDraw(mCanvas01);

Log.i("wwj", "onDraw");

int intPadding = 50;

// 设置画图绘图颜色

mCanvas01.drawColor(getResources().getColor(R.drawable.white));

// 创建画笔

Paint mPaint01 = new Paint();

// 设置画笔颜色和模式

mPaint01.setStyle(Paint.Style.FILL);

mPaint01.setColor(getResources().getColor(R.drawable.black));

mPaint01.setStrokeWidth(1.0F);

// 逐一加载boolean数组

for (int i = 0; i < bEncoding.length; i++) {

for (int j = 0; j < bEncoding.length; j++) {

if (bEncoding[j][i]) {

// 绘出条形码方块

mCanvas01.drawRect(new Rect(intPadding + j * 3 + 2,// 左上边x

intPadding + i * 3 + 2,// 左上边y

intPadding + j * 3 + 2 + 3,// 右下边x

intPadding + i * 3 + 2 + 3// 右下边y

), mPaint01);

}

}

}

}

public void onDraw(Canvas mCanvas01) {

super.onDraw(mCanvas01);

Log.i("wwj", "onDraw");

int intPadding = 50;

// 设置画图绘图颜色

mCanvas01.drawColor(getResources().getColor(R.drawable.white));

// 创建画笔

Paint mPaint01 = new Paint();

// 设置画笔颜色和模式

mPaint01.setStyle(Paint.Style.FILL);

mPaint01.setColor(getResources().getColor(R.drawable.black));

mPaint01.setStrokeWidth(1.0F);

// 逐一加载boolean数组

for (int i = 0; i < bEncoding.length; i++) {

for (int j = 0; j < bEncoding.length; j++) {

if (bEncoding[j][i]) {

// 绘出条形码方块

mCanvas01.drawRect(new Rect(intPadding + j * 3 + 2,// 左上边x