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Android實現簽名塗鴉手寫板

本文例項為大家分享了Android實現簽名塗鴉手寫板的具體程式碼,供大家參考,具體內容如下

佈局檔案

<?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="重籤"
          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="儲存"
          android:textColor="@color/white"
          android:textSize="@dimen/text_title_word" />

      </RelativeLayout>



</LinearLayout>

Android實現簽名塗鴉手寫板

//開始簽名

private void StartSignature() {
    // 獲取螢幕尺寸
    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();
    }
  }

//建立簽名檔案

private void createSignFile() {

    FileOutputStream fos = null;

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

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

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

//重新簽名

if (mPaintView.getPath().isEmpty()){
          ToastUtils.showShort(this,"您還沒有簽名呦");
        }else {
          mPaintView.clear();

        }

以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。