Android自定义软键盘的设计与实现代码

 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"   android:layout_width="fill_parent"   android:layout_height="fill_parent"   android:orientation="vertical" >     <EditText     android:id="@+id/edit"     android:layout_width="fill_parent"     android:layout_height="wrap_content" />     <EditText     android:id="@+id/edit1"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:password="true" />     <RelativeLayout     android:layout_width="fill_parent"     android:layout_height="wrap_content" >       <android.inputmethodservice.KeyboardView       android:id="@+id/keyboard_view"       android:layout_width="fill_parent"       android:layout_height="wrap_content"       android:layout_alignParentBottom="true"       android:focusable="true"       android:focusableInTouchMode="true"       android:background="@color/lightblack"       android:keyBackground="@drawable/btn_keyboard_key"       android:keyTextColor="@color/white"       android:visibility="gone" />   </RelativeLayout>   </LinearLayout> 

<?xml version="1.0" encoding="UTF-8"?> <Keyboard android:keyWidth="10.000002%p" android:keyHeight="@dimen/key_height"     android:horizontalGap="0.0px" android:verticalGap="0.0px"     xmlns:android="http://schemas.android.com/apk/res/android">     <Row>         <Key android:codes="113" android:keyEdgeFlags="left"             android:keyLabel="q" />         <Key android:codes="119" android:keyLabel="w" />         <Key android:codes="101" android:keyLabel="e" />         <Key android:codes="114" android:keyLabel="r" />         <Key android:codes="116" android:keyLabel="t" />         <Key android:codes="121" android:keyLabel="y" />         <Key android:codes="117" android:keyLabel="u" />         <Key android:codes="105" android:keyLabel="i" />         <Key android:codes="111" android:keyLabel="o" />         <Key android:codes="112" android:keyEdgeFlags="right"             android:keyLabel="p" />     </Row>     <Row>         <Key android:horizontalGap="4.999995%p" android:codes="97"             android:keyEdgeFlags="left" android:keyLabel="a" />         <Key android:codes="115" android:keyLabel="s" />         <Key android:codes="100" android:keyLabel="d" />         <Key android:codes="102" android:keyLabel="f" />         <Key android:codes="103" android:keyLabel="g" />         <Key android:codes="104" android:keyLabel="h" />         <Key android:codes="106" android:keyLabel="j" />         <Key android:codes="107" android:keyLabel="k" />         <Key android:codes="108" android:keyEdgeFlags="right"             android:keyLabel="l" />     </Row>     <Row>         <Key android:keyWidth="14.999998%p" android:codes="-1"             android:keyEdgeFlags="left" android:isModifier="true"             android:isSticky="true" android:keyIcon="@drawable/sym_keyboard_shift" />         <Key android:codes="122" android:keyLabel="z" />         <Key android:codes="120" android:keyLabel="x" />         <Key android:codes="99" android:keyLabel="c" />         <Key android:codes="118" android:keyLabel="v" />         <Key android:codes="98" android:keyLabel="b" />         <Key android:codes="110" android:keyLabel="n" />         <Key android:codes="109" android:keyLabel="m" />         <Key android:keyWidth="14.999998%p" android:codes="-5"             android:keyEdgeFlags="right" android:isRepeatable="true"             android:keyIcon="@drawable/sym_keyboard_delete" />     </Row>     <Row android:rowEdgeFlags="bottom">         <Key android:keyWidth="20.000004%p" android:codes="-2"             android:keyLabel="12#" />         <Key android:keyWidth="14.999998%p" android:codes="44"             android:keyLabel="," />         <Key android:keyWidth="29.999996%p" android:codes="32"             android:isRepeatable="true" android:keyIcon="@drawable/sym_keyboard_space" />         <Key android:keyWidth="14.999998%p" android:codes="46"             android:keyLabel="." />         <Key android:keyWidth="20.000004%p" android:codes="-3"             android:keyEdgeFlags="right" android:keyLabel="完成" />     </Row> </Keyboard> 

<?xml version="1.0" encoding="utf-8"?> <Keyboard xmlns:android="http://schemas.android.com/apk/res/android"     android:keyWidth="25%p" android:horizontalGap="0px"     android:verticalGap="0px" android:keyHeight="@dimen/key_height">     <Row>         <Key android:codes="49" android:keyLabel="1" />         <Key android:codes="50" android:keyLabel="2" />         <Key android:codes="51" android:keyLabel="3" />         <Key android:codes="57419" android:keyEdgeFlags="right"             android:keyIcon="@drawable/sym_keyboard_left" />     </Row>     <Row>         <Key android:codes="52" android:keyLabel="4" />         <Key android:codes="53" android:keyLabel="5" />         <Key android:codes="54" android:keyLabel="6" />         <Key android:codes="57421" android:keyEdgeFlags="right"             android:keyIcon="@drawable/sym_keyboard_right" />     </Row>     <Row>         <Key android:codes="55" android:keyLabel="7" />         <Key android:codes="56" android:keyLabel="8" />         <Key android:codes="57" android:keyLabel="9" />         <Key android:codes="-3" android:keyHeight="100dip"             android:keyEdgeFlags="right" android:isRepeatable="true"             android:keyLabel="完成" />     </Row>     <Row>         <Key android:codes="-2" android:keyLabel="ABC" />         <Key android:codes="48" android:keyLabel="0" />         <Key android:codes="-5" android:keyIcon="@drawable/sym_keyboard_delete" />     </Row> </Keyboard> 

package cn.key;   import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.text.InputType; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.widget.EditText;   public class KeydemoActivity extends Activity {     private Context ctx;     private Activity act;     private EditText edit;     private EditText edit1;       @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);         ctx = this;         act = this;           edit = (EditText) this.findViewById(R.id.edit);         edit.setInputType(InputType.TYPE_NULL);           edit1 = (EditText) this.findViewById(R.id.edit1);           edit.setOnTouchListener(new OnTouchListener() {             @Override             public boolean onTouch(View v, MotionEvent event) {                 new KeyboardUtil(act, ctx, edit).showKeyboard();                 return false;             }         });           edit1.setOnTouchListener(new OnTouchListener() {             @Override             public boolean onTouch(View v, MotionEvent event) {                 int inputback = edit1.getInputType();                 edit1.setInputType(InputType.TYPE_NULL);                 new KeyboardUtil(act, ctx, edit1).showKeyboard();                 edit1.setInputType(inputback);                 return false;             }         });       } } 

package cn.key;   import java.util.List;   import android.app.Activity; import android.content.Context; import android.inputmethodservice.Keyboard; import android.inputmethodservice.KeyboardView; import android.inputmethodservice.Keyboard.Key; import android.inputmethodservice.KeyboardView.OnKeyboardActionListener; import android.text.Editable; import android.view.View; import android.widget.EditText;   public class KeyboardUtil {     private Context ctx;     private Activity act;     private KeyboardView keyboardView;     private Keyboard k1;// 字母键盘     private Keyboard k2;// 数字键盘     public boolean isnun = false;// 是否数据键盘     public boolean isupper = false;// 是否大写       private EditText ed;       public KeyboardUtil(Activity act, Context ctx, EditText edit) {         this.act = act;         this.ctx = ctx;         this.ed = edit;         k1 = new Keyboard(ctx, R.xml.qwerty);         k2 = new Keyboard(ctx, R.xml.symbols);         keyboardView = (KeyboardView) act.findViewById(R.id.keyboard_view);         keyboardView.setKeyboard(k1);         keyboardView.setEnabled(true);         keyboardView.setPreviewEnabled(true);         keyboardView.setOnKeyboardActionListener(listener);     }       private OnKeyboardActionListener listener = new OnKeyboardActionListener() {         @Override         public void swipeUp() {         }           @Override         public void swipeRight() {         }           @Override         public void swipeLeft() {         }           @Override         public void swipeDown() {         }           @Override         public void onText(CharSequence text) {         }           @Override         public void onRelease(int primaryCode) {         }           @Override         public void onPress(int primaryCode) {         }           @Override         public void onKey(int primaryCode, int[] keyCodes) {             Editable editable = ed.getText();             int start = ed.getSelectionStart();             if (primaryCode == Keyboard.KEYCODE_CANCEL) {// 完成                 hideKeyboard();             } else if (primaryCode == Keyboard.KEYCODE_DELETE) {// 回退                 if (editable != null && editable.length() > 0) {                     if (start > 0) {                         editable.delete(start - 1, start);                     }                 }             } else if (primaryCode == Keyboard.KEYCODE_SHIFT) {// 大小写切换                 changeKey();                 keyboardView.setKeyboard(k1);               } else if (primaryCode == Keyboard.KEYCODE_MODE_CHANGE) {// 数字键盘切换                 if (isnun) {                     isnun = false;                     keyboardView.setKeyboard(k1);                 } else {                     isnun = true;                     keyboardView.setKeyboard(k2);                 }             } else if (primaryCode == 57419) { // go left                 if (start > 0) {                     ed.setSelection(start - 1);                 }             } else if (primaryCode == 57421) { // go right                 if (start < ed.length()) {                     ed.setSelection(start + 1);                 }             } else {                 editable.insert(start, Character.toString((char) primaryCode));             }         }     };           /**      * 键盘大小写切换      */     private void changeKey() {         List<Key> keylist = k1.getKeys();         if (isupper) {//大写切换小写             isupper = false;             for(Key key:keylist){                 if (key.label!=null && isword(key.label.toString())) {                     key.label = key.label.toString().toLowerCase();                     key.codes[0] = key.codes[0]+32;                 }             }         } else {//小写切换大写             isupper = true;             for(Key key:keylist){                 if (key.label!=null && isword(key.label.toString())) {                     key.label = key.label.toString().toUpperCase();                     key.codes[0] = key.codes[0]-32;                 }             }         }     }     public void showKeyboard() {     int visibility = keyboardView.getVisibility();     if (visibility == View.GONE || visibility == View.INVISIBLE) {       keyboardView.setVisibility(View.VISIBLE);     }   }       public void hideKeyboard() {     int visibility = keyboardView.getVisibility();     if (visibility == View.VISIBLE) {       keyboardView.setVisibility(View.INVISIBLE);     }   }       private boolean isword(String str){       String wordstr = "abcdefghijklmnopqrstuvwxyz";       if (wordstr.indexOf(str.toLowerCase())>-1) {             return true;         }       return false;   }   }