Android 九宫格物理键盘数字英文切换

前几天接到个任务，让android原生的输入法支持物理按键,同时在状态栏体现。

一开始直接在拉丁输入法LatinIME.java类中处理，然后客户要求不能在输入法中处理，于是对InputMethodService.java进行处理。

 /*begin add by csc*/private long timeDown,timeUp;private int count,typeCount ;private String input;private int lastKeyCode;private boolean isLongPressed = false;private boolean isDown = false;private static final long DELAY_TIME = 700;private boolean isInput = true;InputConnection inputConnection;// add by csc/*end add by csc*/

public boolean onKeyDown(int keyCode, KeyEvent event) {/*begin add by csc*/if(Settings.Global.getInt(getApplicationContext().getContentResolver(), "aa_key_switch_case_function_enabled",0)==1) {final EditorInfo ei = getCurrentInputEditorInfo();if (ei.inputType != 524289 && ei.inputType != InputType.TYPE_NULL && ei.inputType != InputType.TYPE_CLASS_NUMBER && ei.inputType != InputType.TYPE_NUMBER_FLAG_SIGNED && ei.inputType != InputType.TYPE_NUMBER_FLAG_DECIMAL && ei.inputType != InputType.TYPE_CLASS_PHONE) {if (isInput && keyCode >= KeyEvent.KEYCODE_0 && keyCode <= KeyEvent.KEYCODE_9 || keyCode == KeyEvent.KEYCODE_STAR || keyCode == KeyEvent.KEYCODE_F3 || keyCode == KeyEvent.KEYCODE_POUND) {handler.removeCallbacks(runnableUp);if (typeCount != 0) {if (!isLongPressed) {timeDown = System.currentTimeMillis();if (/*keyCode == KeyEvent.KEYCODE_F3||*/lastKeyCode != 0 && lastKeyCode != keyCode && timeDown - timeUp < DELAY_TIME && lastKeyCode != KeyEvent.KEYCODE_0 && !isDown) {if (typeCount == 2) {input = input.toUpperCase();}if (DEBUG)Log.d("chenshichun", " " + this.getClass().getCanonicalName() + " :::::input::::" + input);inputConnection.commitText(input, 1);count = 0;}if (!isDown && keyCode != KeyEvent.KEYCODE_F3)handler.postDelayed(runnableDown, DELAY_TIME);isDown = true;switch (keyCode) {case KeyEvent.KEYCODE_0:input = "0";return true;case KeyEvent.KEYCODE_1:input = "1";return true;case KeyEvent.KEYCODE_2:input = "2";return true;case KeyEvent.KEYCODE_3:input = "3";return true;case KeyEvent.KEYCODE_4:input = "4";return true;case KeyEvent.KEYCODE_5:input = "5";return true;case KeyEvent.KEYCODE_6:input = "6";return true;case KeyEvent.KEYCODE_7:input = "7";return true;case KeyEvent.KEYCODE_8:input = "8";return true;case KeyEvent.KEYCODE_9:input = "9";return true;case KeyEvent.KEYCODE_STAR:input = "*";return true;case KeyEvent.KEYCODE_POUND:input = "#";return true;}} else {return true;}}if (keyCode == KeyEvent.KEYCODE_F3) {return true;}}}}/*end add by csc*/if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {if (handleBack(false)) {event.startTracking();return true;}return false;}return doMovementKey(keyCode, event, MOVEMENT_DOWN);}

 public boolean onKeyUp(int keyCode, KeyEvent event) {/*begin add by csc*/if(Settings.Global.getInt(getApplicationContext().getContentResolver(), "aa_key_switch_case_function_enabled",0)==1) {final EditorInfo ei = getCurrentInputEditorInfo();if (ei.inputType != 524289 && ei.inputType != InputType.TYPE_NULL && ei.inputType != InputType.TYPE_CLASS_NUMBER && ei.inputType != InputType.TYPE_NUMBER_FLAG_SIGNED && ei.inputType != InputType.TYPE_NUMBER_FLAG_DECIMAL && ei.inputType != InputType.TYPE_CLASS_PHONE) {if (isInput) {isDown = false;if (typeCount != 0 && /*keyCode != KeyEvent.KEYCODE_POUND && */keyCode != KeyEvent.KEYCODE_F3 &&(keyCode >= KeyEvent.KEYCODE_0 && keyCode <= KeyEvent.KEYCODE_9 || keyCode == KeyEvent.KEYCODE_STAR || keyCode == KeyEvent.KEYCODE_POUND)) {long nowTime = System.currentTimeMillis();inputConnection = getCurrentInputConnection();if (isLongPressed) {isLongPressed = false;} else {handler.removeCallbacks(runnableDown);switch (keyCode) {case KeyEvent.KEYCODE_0:if (nowTime - timeDown < DELAY_TIME) {handler.removeCallbacks(runnableDown);input = " ";inputConnection.commitText(input, 1);}break;case KeyEvent.KEYCODE_1:switch (count % 3) {case 0:input = ",";break;case 1:input = ".";break;case 2:input = "@";break;}break;case KeyEvent.KEYCODE_2:switch (count % 3) {case 0:input = "a";break;case 1:input = "b";break;case 2:input = "c";break;}break;case KeyEvent.KEYCODE_3:switch (count % 3) {case 0:input = "d";break;case 1:input = "e";break;case 2:input = "f";break;}break;case KeyEvent.KEYCODE_4:switch (count % 3) {case 0:input = "g";break;case 1:input = "h";break;case 2:input = "i";break;}break;case KeyEvent.KEYCODE_5:switch (count % 3) {case 0:input = "j";break;case 1:input = "k";break;case 2:input = "l";break;}break;case KeyEvent.KEYCODE_6:switch (count % 3) {case 0:input = "m";break;case 1:input = "n";break;case 2:input = "o";break;}break;case KeyEvent.KEYCODE_7:switch (count % 4) {case 0:input = "p";break;case 1:input = "q";break;case 2:input = "r";break;case 3:input = "s";break;}break;case KeyEvent.KEYCODE_8:switch (count % 3) {case 0:input = "t";break;case 1:input = "u";break;case 2:input = "v";break;}break;case KeyEvent.KEYCODE_9:switch (count % 4) {case 0:input = "w";break;case 1:input = "x";break;case 2:input = "y";break;case 3:input = "z";break;}break;case KeyEvent.KEYCODE_STAR:switch (count % 2) {case 0:input = ".";break;case 1:input = ",";break;}break;case KeyEvent.KEYCODE_POUND:input = "#";break;}if (typeCount == 2) {input = input.toUpperCase();}inputConnection.setComposingText(input, 1);handler.removeCallbacks(runnableUp);handler.postDelayed(runnableUp, DELAY_TIME);count++;isLongPressed = false;timeUp = System.currentTimeMillis();lastKeyCode = keyCode;}}if (keyCode == KeyEvent.KEYCODE_F3) {switch (typeCount) {case 0:typeCount = 1;break;case 1:typeCount = 2;break;case 2:typeCount = 0;break;}input = "";Intent intent = new Intent("INPUT_STATUS_CHANGE");intent.putExtra("INPUT_STATUS", typeCount);sendBroadcast(intent);}}}}/*end add by csc*/if (event.getKeyCode() == KeyEvent.KEYCODE_BACK && event.isTracking()&& !event.isCanceled()) {return handleBack(true);}return doMovementKey(keyCode, event, MOVEMENT_UP);}

/*begin add by csc*/Handler handler = new Handler();Runnable runnableDown = new Runnable() {@Overridepublic void run() {try {inputConnection.commitText(input, 1);if(DEBUG)Log.d("chenshichun"," "+this.getClass().getCanonicalName()+" :::::runnableDown::::"+input);isLongPressed = true;} catch (Exception e) {e.printStackTrace();System.out.println("exception...");}}};Runnable runnableUp = new Runnable() {@Overridepublic void run() {try {if(typeCount==2){input = input.toUpperCase();}inputConnection.commitText(input, 1);if(DEBUG)Log.d("chenshichun"," "+this.getClass().getCanonicalName()+" :::::runnableUp::::"+input);count = 0;} catch (Exception e) {e.printStackTrace();System.out.println("exception...");}}};/*end add by csc*/

因为监听不到长按事件，所以在每次down的时候都当长按处理，handler.postDelayed(runnableDown, DELAY_TIME); 每次up的时候先handler.removeCallbacks(runnableDown);这时候如果抬手时间大于DELAY_TIME就会当长按处理，在电话，计算器等只需要输入数字的界面就将该功能屏蔽，通过输入类型来判断即可，这里524289是计算器读出来的类型，源码中找不到就直接写数值了。

ei.inputType != 524289 && ei.inputType != InputType.TYPE_NULL && ei.inputType != InputType.TYPE_CLASS_NUMBER && ei.inputType != InputType.TYPE_NUMBER_FLAG_SIGNED && ei.inputType != InputType.TYPE_NUMBER_FLAG_DECIMAL && ei.inputType != InputType.TYPE_CLASS_PHONE

当切换大小写的时候在PhoneStatusBar.java接受广播

else if("INPUT_STATUS_CHANGE".equals(action)){// add by cscint inputStatus = intent.getIntExtra("INPUT_STATUS",0);switch (inputStatus){case 0:mInputStatus.setText("");break;case 1:mInputStatus.setText(R.string.input_lower);break;case 2:mInputStatus.setText(R.string.input_case);break;}}else if ("INPUT_ON_OR_FALSE".equals(action)){// add by cscboolean putStatusOn = intent.getBooleanExtra("INPUT_STATUS_ON",false);mInputStatus.setVisibility(putStatusOn?View.VISIBLE:View.GONE);}

其中INPUT_ON_OR_FALSE这个广播是设置里面发出的，设置里面加了一个这个功能是否启用的开关，对应

Settings.Global.getInt(getApplicationContext().getContentResolver(), "aa_key_switch_case_function_enabled",0)==1

还需要在statusbar.xml里面加一个控件

<TextViewandroid:id="@+id/input_status"android:layout_width="wrap_content"android:layout_height="match_parent"android:gravity="center_vertical"android:text="@string/input_case"android:visibility="gone"/>

后面发现在短信界面联想功能会乱，于是实体按键的时候就把联想功能去掉：

在拉丁输入法LatinIME.java里面修改：

if (!/*latinIme.mSettings.getCurrent().isSuggestionsEnabledPerUserSettings()*/false) {// mod by cscreturn;}

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Android 九宫格物理键盘数字英文切换

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