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 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
人气:0想了解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的相关内容吗,在本文为您仔细讲解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的相关知识和一些Code实例,欢迎阅读和指正,我们先划重点:Android,添加广播,Android,通过广播给当前焦点输入框赋值,Android,广播,下面大家一起来学习吧。
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
@Override public long interceptKeyBeforeDispatching(WindowState win, KeyEvent event, int policyFlags) { final boolean keyguardOn = keyguardOn(); final int keyCode = event.getKeyCode(); final int repeatCount = event.getRepeatCount(); final int metaState = event.getMetaState(); final int flags = event.getFlags(); final boolean down = event.getAction() == KeyEvent.ACTION_DOWN; final boolean canceled = event.isCanceled(); final boolean longPress = (flags & KeyEvent.FLAG_LONG_PRESS) != 0; final boolean virtualKey = event.getDeviceId() == KeyCharacterMap.VIRTUAL_KEYBOARD; final String isCitKeyTest=SystemProperties.get("persist.sys.startCitKeyTest"); //添加自定义按键广播----开始 switch (keyCode) { case 135: case 136: case 137: case 139: { if (repeatCount == 0) { Intent myKeyIntent = new Intent(); if(down) { myKeyIntent.setAction("com.rscja.android.KEY_DOWN"); } else { myKeyIntent.setAction("com.rscja.android.KEY_UP"); } myKeyIntent.putExtra("keycode", keyCode); mContext.sendBroadcastAsUser(myKeyIntent, UserHandle.ALL); } } break; } //添加自定义按键广播----结束 …… …… …… …… }
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
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