Android 签名

1.设置签名类

public class MyHandWritePanel extends PopupWindow {BaseActivity mContext;HandWrite handView;int availableHeight;private Bitmap bitmap;private int displayHeight,displayWidth;public MyHandWritePanel(BaseActivity context) {super(context, null);this.mContext = context;
//      Rect outRect = new Rect();
//      view.getWindowVisibleDisplayFrame(outRect);
//      availableHeight = outRect.height();DisplayMetrics dm = new DisplayMetrics();mContext.getWindowManager().getDefaultDisplay().getMetrics(dm);displayHeight=dm.heightPixels;displayWidth=dm.widthPixels;availableHeight=displayHeight;setWidth(displayWidth);setHeight(availableHeight);setFocusable(true);setContentView(createContentView());setAnimationStyle(R.style.popwindow_anim);}private ViewGroup createContentView() {RelativeLayout out = new RelativeLayout(mContext);out.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT));out.setGravity(Gravity.CENTER);out.addView(createTitle());out.addView(createBody());out.addView(createFoot());return out;}private LinearLayout createTitle() {RelativeLayout.LayoutParams rlayout = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT,(int) mContext.getResources().getDimension(R.dimen.fontSize_30_dip));rlayout.addRule(RelativeLayout.ALIGN_PARENT_TOP,RelativeLayout.TRUE);LinearLayout title = new LinearLayout(mContext);title.setId(1);title.setGravity(Gravity.CENTER);title.setLayoutParams(rlayout);TextView tv = new TextView(mContext);tv.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT));tv.setText("签名板");tv.setTextColor(mContext.getResources().getColor(R.color.white));tv.setTextSize(mContext.getResources().getDimension(R.dimen.fontSize_20));tv.setGravity(Gravity.CENTER);title.addView(tv);return title;}private LinearLayout createBody() {RelativeLayout.LayoutParams rlayout = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, availableHeight- ViewUtil.dip2px(mContext, mContext.getResources().getDimension(R.dimen.fontSize_20) * 4));rlayout.addRule(RelativeLayout.BELOW, 1);rlayout.addRule(RelativeLayout.ABOVE, 3);LinearLayout title = new LinearLayout(mContext);title.setId(2);title.setLayoutParams(rlayout);handView = new HandWrite(mContext, null, null, null,displayWidth, availableHeight- ViewUtil.dip2px(mContext, 80));title.addView(handView);return title;}private LinearLayout createFoot() {RelativeLayout.LayoutParams rlayout = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, ViewUtil.dip2px(mContext, ViewUtil.dip2px(mContext, mContext.getResources().getDimension(R.dimen.fontSize_50))));rlayout.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM,RelativeLayout.TRUE);LinearLayout title = new LinearLayout(mContext);title.setId(3);title.setOrientation(LinearLayout.HORIZONTAL);title.setLayoutParams(rlayout);title.setGravity(Gravity.CENTER);LinearLayout.LayoutParams layParam = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);layParam.setMargins(0,0,ViewUtil.dip2px(mContext,mContext.getResources().getDimension(R.dimen.fontSize_10)),0);Button confirmBtn = new Button(mContext);confirmBtn.setLayoutParams(layParam);confirmBtn.setText("确定");confirmBtn.setTextSize(mContext.getResources().getDimension(R.dimen.fontSize_16));confirmBtn.setBackgroundResource(R.drawable.comp_button_bottom);confirmBtn.setTextColor(mContext.getResources().getColor(R.color.text_color_dark));confirmBtn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {bitmap = handView.getmBitmap();if (bitmap != null)afterSign.setImage(bitmap);
//                  scaledSignImage.setImageBitmap(bitmap);MyHandWritePanel.this.dismiss();}});Button clearBtn = new Button(mContext);clearBtn.setText("清空");clearBtn.setTextSize(mContext.getResources().getDimension(R.dimen.fontSize_16));clearBtn.setLayoutParams(layParam);clearBtn.setBackgroundResource(R.drawable.comp_button_bottom);clearBtn.setTextColor(mContext.getResources().getColor(R.color.text_color_dark));clearBtn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {handView.clear();}});Button cancelBtn = new Button(mContext);cancelBtn.setText("取消");cancelBtn.setTextSize(mContext.getResources().getDimension(R.dimen.fontSize_16));cancelBtn.setLayoutParams(layParam);cancelBtn.setBackgroundResource(R.drawable.comp_button_bottom);cancelBtn.setTextColor(mContext.getResources().getColor(R.color.text_color_dark));cancelBtn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {afterSign.cancel();MyHandWritePanel.this.dismiss();}});title.addView(confirmBtn);title.addView(clearBtn);title.addView(cancelBtn);return title;}private MyHandWritePanel.AfterSign afterSign = new MyHandWritePanel.AfterSign() {@Overridepublic void setImage(Bitmap bitmap) {// TODO Auto-generated method stub}@Overridepublic void cancel() {// TODO Auto-generated method stub}};public void setAfterSign(MyHandWritePanel.AfterSign afterSign) {this.afterSign = afterSign;}public interface AfterSign{public void setImage(Bitmap bitmap);public void cancel();}
}

2.mainActivity

    private MyHandWritePanel handWritePanel;private ImageView imagePanel;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_choise_sign);handWritePanel=new MyHandWritePanel(this);imagePanel=(ImageView)findViewById(R.id.sign_panel_image);btnComp=(Button)findViewById(R.id.sign_panel_complete);handWritePanel.setAfterSign(new MyHandWritePanel.AfterSign() {@Overridepublic void setImage(Bitmap bitmap) {// TODO Auto-generated method stubImageUtil.saveMyBitmap(bitmap, AbsConstant.SDCARD_ROOT_PATH+AbsConstant.getCachePicPath(), SING_PIC_NAME);image_local_path=AbsConstant.SDCARD_ROOT_PATH+AbsConstant.getCachePicPath()+File.separator+SING_PIC_NAME;imagePanel.setImageBitmap(bitmap);}@Overridepublic void cancel() {// TODO Auto-generated method stubimagePanel.setImageResource(R.drawable.signature_default);}});imagePanel.setOnClickListener(onClick);btnComp.setOnClickListener(onClick);checkSign.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {// TODO Auto-generated method stubif(isChecked){handWritePanel.showAtLocation(imagePanel, Gravity.CENTER, 0, 0);}}});}

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