签名涂鸦手写板

布局文件

<?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">

    <FrameLayout
        android:id="@+id/fl_signature"
        android:layout_width="fill_parent"
        android:layout_height="200dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_marginTop="10dp"
        android:background="@drawable/singature_bg"
        android:gravity="top">
    </FrameLayout>
    <ImageView
        android:id="@+id/iv_signature"
        android:layout_width="fill_parent"
        android:layout_height="200dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_marginTop="10dp"
        android:background="@drawable/signature_shape"
        android:gravity="top"
        android:visibility="gone"/>

    <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="20dp"
                android:layout_marginBottom="20dp">

                <TextView
                    android:id="@+id/tv_revert_signature"
                    android:layout_width="100dp"
                    android:layout_height="35dp"
                    android:layout_alignParentRight="true"
                    android:layout_marginRight="140dp"
                    android:background="@drawable/btn_order_details_pay_bg"
                    android:gravity="center"
                    android:paddingLeft="30dp"
                    android:paddingRight="30dp"
                    android:text="重签"
                    android:textColor="@color/code_number_bg"
                    android:textSize="@dimen/text_title_word" />

                <TextView
                    android:id="@+id/tv_signature_save"
                    android:layout_width="100dp"
                    android:layout_height="35dp"
                    android:layout_alignParentRight="true"
                    android:layout_marginRight="20dp"
                    android:background="@drawable/bt_bg"
                    android:gravity="center"
                    android:paddingLeft="30dp"
                    android:paddingRight="30dp"
                    android:text="保存"
                    android:textColor="@color/white"
                    android:textSize="@dimen/text_title_word" />

            </RelativeLayout>



</LinearLayout>

* 开始签名

    private void StartSignature() {
        // 获取屏幕尺寸
        DisplayMetrics mDisplayMetrics = new DisplayMetrics();
        getWindow().getWindowManager().getDefaultDisplay().getMetrics(mDisplayMetrics);
    }

    @Override
    public void onWindowFocusChanged(boolean hasFocus) {
        super.onWindowFocusChanged(hasFocus);
        if(hasFocus&&mPaintView==null){
            int screenWidth = mFl_signature.getMeasuredWidth();
            int screenHeight = mFl_signature.getMeasuredHeight();
            mPaintView=new PaintView(getApplicationContext(),screenWidth, screenHeight);
            mFl_signature.addView(mPaintView);
            mPaintView.requestFocus();
        }
    }

//创建签名文件

  private void createSignFile() {

        FileOutputStream fos = null;

        File file = null;
        try {
            path= generateImgePath();
            file = new File(path);
            fos = new FileOutputStream(file);

            //如果设置成
            mPaintBitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (fos != null) {
                    fos.close();
                }

            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

//重新签名

 if (mPaintView.getPath().isEmpty()){
                    ToastUtils.showShort(this,"您还没有签名呦");
                }else {
                    mPaintView.clear();

                }