1.自定义数字键盘
2.切换到随机数字键盘
3.自定义确定和删除等键(向外抛出接口)
使用方法:
1.在项目build.gradle文件中添加jitpack，添加jitpcak就够了。allprojects{undefinedrepositories{undefinedjcenter()maven{url'https://jitpack.io'}}}2.在module的build.gradle文件添加依赖compile'com.github.Simon986793021:NumberKeyboard:v1.0'3.在布局文件中添加布局android:id="@+id/keyboard_view"xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="wrap_content"android:focusable="true"android:paddingTop="0dp"android:focusableInTouchMode="true"android:keyBackground="@drawable/bg_keyboardview"android:keyPreviewOffset="0dp"android:keyTextColor="#000"android:shadowColor="#fff"android:shadowRadius="0.0"android:layout_alignParentBottom="true"/>4.在MainActivity调用。editText=(EditText)findViewById(R.id.et_numberplate);changebutton=(Button)findViewById(R.id.bt_change_keyboard);finalOfoKeyboardkeyboard=newOfoKeyboard(MainActivity.this);//获取到keyboard对象changebutton.setonClickListener(newView.onClickListener(){undefined@OverridepublicvoidonClick(Viewv){undefinedkeyboard.attachTo(editText,true);//eiditext绑定keyboard，true表示随机数字}});editText.setonClickListener(newView.onClickListener(){undefined@OverridepublicvoidonClick(Viewv){undefinedkeyboard.attachTo(editText,false);//eiditext绑定keyboard，false表示普通数字键盘}});keyboard.setonOkClick(newOfoKeyboard.onOkClick(){undefined@OverridepublicvoidonOkClick(){undefinedLog.i(">>>>>>","点击了确定");Toast.makeText(MainActivity.this,editText.getText().toString(),Toast.LENGTH_SHORT).show();}});//隐藏键盘按钮keyboard.setonCancelClick(newOfoKeyboard.onCancelClcik(){undefined@OverridepublicvoidonCancelClick(){undefinedToast.makeText(MainActivity.this,"隐藏键盘",Toast.LENGTH_SHORT).show();}});只需要这些简单的代码就能够实现一个自己定义的键盘了。实现过程1.新建一个keyboard布局在看这个代码之前需要了解keyboard的属性：不清楚属性，怎么画页面，不懂的请移步这篇博客在res新建一个xml文件，然后在xml新建一个keyboard.xml里面代码如下xmlns:android="http://schemas.android.com/apk/res/android"android:keyHeight="9%p"android:keyWidth="25%p"android:horizontalGap="0dp">android:codes="49"android:keyLabel="1"/>android:codes="50"android:keyLabel="2"/>android:codes="51"android:keyLabel="3"/>android:codes="-5"android:keyHeight="18%p"android:keyEdgeFlags="right"android:isRepeatable="true"android:keyIcon="@drawable/icon_delete_32dp"/>android:codes="52"android:keyLabel="4"/>android:codes="53"android:keyLabel="5"/>android:codes="54"android:keyLabel="6"/>android:codes="55"android:keyLabel="7"/>android:codes="56"android:keyLabel="8"/>android:codes="57"android:keyLabel="9"/>android:codes="-4"android:keyLabel="确定"android:keyEdgeFlags="right"android:keyHeight="18%p"/>android:codes="46"android:keyLabel="."/>android:codes="48"android:keyLabel="0"/>android:codes="-3"android:keyIcon="@drawable/icon_hide_keyboard"/>这个布局就是自己自定义键盘的布局实现，有了布局，显然是不够的。2.自定义KeyboardViewpackagecom.wind.keyboard;importandroid.content.Context;importandroid.graphics.Canvas;importandroid.graphics.Color;importandroid.graphics.Paint;importandroid.graphics.Rect;importandroid.graphics.Typeface;importandroid.graphics.drawable.Drawable;importandroid.inputmethodservice.Keyboard;importandroid.inputmethodservice.KeyboardView;importandroid.util.AttributeSet;importandroid.util.Log;importjava.lang.reflect.Field;importjava.util.List;publicclassOfoKeyboardViewextendsKeyboardView{undefinedprivateContextcontext;privateKeyboardkeyboard;publicOfoKeyboardView(Contextcontext,AttributeSetattrs){undefinedsuper(context,attrs);this.context=context;Log.i(">>>>>","构造函数被调用了");}@OverridepublicvoidonDraw(Canvascanvas){undefinedsuper.onDraw(canvas);keyboard=this.getKeyboard();Listkeys=null;if(keyboard!=null){undefinedkeys=keyboard.getKeys();}if(keys!=null){undefinedfor(Keyboard.Keykey:keys){undefined//数字键盘的处理if(key.codes[0]==-4){undefineddrawKeyBackground(R.drawable.bg_keyboardview_yes,canvas,key);drawText(canvas,key);}}}}privatevoiddrawKeyBackground(intdrawableId,Canvascanvas,Keyboard.Keykey){undefinedDrawablenpd=context.getResources().getDrawable(drawableId);int[]drawableState=key.getCurrentDrawableState();if(key.codes[0]!=0){undefinednpd.setState(drawableState);}npd.setBounds(key.x,key.y,key.x+key.width,key.y+key.height);npd.draw(canvas);}privatevoiddrawText(Canvascanvas,Keyboard.Keykey){undefinedRectbounds=newRect();Paintpaint=newPaint();paint.setTextAlign(Paint.Align.CENTER);paint.setAntiAlias(true);paint.setColor(Color.WHITE);if(key.label!=null){undefinedStringlabel=key.label.toString();Fieldfield;if(label.length()>1&&key.codes.length>>>>","attachTo");this.editText=editText;hideSystemSofeKeyboard(activity,editText);showSoftKeyboard();}privatevoidshowSoftKeyboard(){undefinedif(keyboard==null){undefinedkeyboard=newKeyboard(activity,R.xml.keyboard);}if(keyboardView==null){undefinedkeyboardView=(OfoKeyboardView)activity.findViewById(R.id.keyboard_view);}if(isRandom){undefinedrandomKeyboardNumber();}else{undefinedkeyboardView.setKeyboard(keyboard);}keyboardView.setEnabled(true);keyboardView.setPreviewEnabled(false);keyboardView.setVisibility(View.VISIBLE);keyboardView.setonKeyboardActionListener(listener);}privateKeyboardView.onKeyboardActionListenerlistener=newKeyboardView.onKeyboardActionListener(){undefined@OverridepublicvoidonPress(intprimaryCode){undefined}@OverridepublicvoidonRelease(intprimaryCode){undefined}@OverridepublicvoidonKey(intprimaryCode,int[]keyCodes){undefinedEditableeditable=editText.getText();intstart=editText.getSelectionStart();if(primaryCode==Keyboard.KEYCODE_DELETE)//keycodes为-5{undefinedif(editable!=null&&editable.length()>0){undefinedif(start>0){undefinededitable.delete(start-1,start);}}}elseif(primaryCode==Keyboard.KEYCODE_CANCEL){undefinedhideKeyBoard();if(mCancelClick!=null){undefinedmCancelClick.onCancelClick();}}elseif(primaryCode==Keyboard.KEYCODE_DONE){undefinedhideKeyBoard();if(mOkClick!=null){undefinedmOkClick.onOkClick();}}else{undefinedLog.i(">>>>>>",primaryCode+"1");Log.i(">>>>>>",(char)primaryCode+"2");editable.insert(start,Character.toString((char)primaryCode));}}@OverridepublicvoidonText(CharSequencetext){undefined}@OverridepublicvoidswipeLeft(){undefined}@OverridepublicvoidswipeRight(){undefined}@OverridepublicvoidswipeDown(){undefined}@OverridepublicvoidswipeUp(){undefined}};publicinterfaceOnOkClick{undefinedvoidonOkClick();}publicinterfaceOnCancelClcik{undefinedvoidonCancelClick();}publicOnOkClickmOkClick;publicOnCancelClcikmCancelClick;publicvoidsetonOkClick(OnOkClickonOkClick){undefinedthis.mOkClick=onOkClick;}publicvoidsetonCancelClick(OnCancelClcikonCancelClick){undefinedthis.mCancelClick=onCancelClick;}privatevoidhideKeyBoard(){undefinedintvisibility=keyboardView.getVisibility();if(visibility==KeyboardView.VISIBLE){undefinedkeyboardView.setVisibility(KeyboardView.GONE);}}privatebooleanisNumber(Stringstr){undefinedStringwordstr="0123456789";returnwordstr.contains(str);}privatevoidrandomKeyboardNumber(){undefinedListkeyList=keyboard.getKeys();//查找出0-9的数字键ListnewkeyList=newArrayList();for(inti=0;i回答于 2022-04-01