Android给自定义按键添加广播和通过广播给当前焦点输入框赋值
一、给自定义按键添加广播
修改PhoneWindowManager.java中的interceptKeyBeforeDispatching方法
/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
1 @Override 2 public long interceptKeyBeforeDispatching(WindowState win, KeyEvent event, int policyFlags) { 3 final boolean keyguardOn = keyguardOn(); 4 final int keyCode = event.getKeyCode(); 5 final int repeatCount = event.getRepeatCount(); 6 final int metaState = event.getMetaState(); 7 final int flags = event.getFlags(); 8 final boolean down = event.getAction() == KeyEvent.ACTION_DOWN; 9 final boolean canceled = event.isCanceled(); 10 final boolean longPress = (flags & KeyEvent.FLAG_LONG_PRESS) != 0; 11 final boolean virtualKey = event.getDeviceId() == KeyCharacterMap.VIRTUAL_KEYBOARD; 12 final String isCitKeyTest=SystemProperties.get("persist.sys.startCitKeyTest"); 13 14 15 16 //添加自定义按键广播----开始 17 switch (keyCode) 18 { 19 case 135: 20 case 136: 21 case 137: 22 case 139: 23 { 24 if (repeatCount == 0) { 25 26 Intent myKeyIntent = new Intent(); 27 28 29 if(down) 30 { 31 myKeyIntent.setAction("com.rscja.android.KEY_DOWN"); 32 } 33 else 34 { 35 myKeyIntent.setAction("com.rscja.android.KEY_UP"); 36 } 37 38 39 myKeyIntent.putExtra("keycode", keyCode); 40 41 mContext.sendBroadcastAsUser(myKeyIntent, UserHandle.ALL); 42 43 44 45 } 46 } 47 48 49 50 break; 51 } 52 53 //添加自定义按键广播----结束 54 55 56 57 58 …… 59 …… 60 …… 61 …… 62 63 }
二、通过广播给当前焦点输入框赋值
修改InputMethodService.java中的onCreate()方法
/frameworks/base/core/java/android/inputmethodservice/InputMethodService.java
1 @Override public void onCreate() { 2 mTheme = Resources.selectSystemTheme(mTheme, 3 getApplicationInfo().targetSdkVersion, 4 android.R.style.Theme_InputMethod, 5 android.R.style.Theme_Holo_InputMethod, 6 android.R.style.Theme_DeviceDefault_InputMethod, 7 android.R.style.Theme_DeviceDefault_InputMethod); 8 super.setTheme(mTheme); 9 super.onCreate(); 10 mImm = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE); 11 mInflater = (LayoutInflater)getSystemService( 12 Context.LAYOUT_INFLATER_SERVICE); 13 mWindow = new SoftInputWindow(this, "InputMethod", mTheme, null, null, mDispatcherState, 14 WindowManager.LayoutParams.TYPE_INPUT_METHOD, Gravity.BOTTOM, false); 15 if (mHardwareAccelerated) { 16 mWindow.getWindow().addFlags(WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED); 17 } 18 initViews(); 19 mWindow.getWindow().setLayout(MATCH_PARENT, WRAP_CONTENT); 20 21 22 //注册广播监听 23 IntentFilter barCodeCheckFilter = new IntentFilter("com.rscja.android.DATA_RESULT"); 24 mRootView.getContext().registerReceiver(m_barCodeCheckReciever,barCodeCheckFilter); 25 26 } 27 28 29 //添加自定义广播 30 private BroadcastReceiver m_barCodeCheckReciever = new BroadcastReceiver () { 31 32 @Override 33 public void onReceive(Context context, Intent intent) { 34 InputConnection conn = getCurrentInputConnection(); 35 36 String intent_data=intent.getStringExtra("data"); 37 38 39 if(intent_data.charAt(intent_data.length() - 1)=='\n') 40 { 41 if (conn != null) { 42 conn.commitText(intent_data.substring(0,intent_data.length()-1), 1); 43 } 44 sendKeyChar('\n'); 45 } 46 else 47 { 48 if (conn != null) { 49 conn.commitText(intent_data, 1); 50 } 51 } 52 } 53 };
