如何使用快捷鍵跳轉到指定的頁面中,在android中的GlobalKeyManager中可以進行相關處理。
frameworks\base\core\res\res\xml\global_keys.xml指定了按鍵和對應的ComponentName,對於這個文件的修改,一般是使用android的overlay機制,對device進行自己的設置。
如下
<global_keys version="1">
<!-- Example format: keyCode = keycode to handle globally. component = component which will handle this key. -->
<key keyCode="183" component="com.test.hotkey/com.test.hotkey.hotkeyActivity" />
</global_keys>
看下GlobalKeyManager中對全局鍵的處理
boolean handleGlobalKey(Context context, int keyCode, KeyEvent event) {
if (mKeyMapping.size() > 0) {
ComponentName component = mKeyMapping.get(keyCode);
if (component != null) {
Intent intent = new Intent(Intent.ACTION_GLOBAL_BUTTON)
.setComponent(component)
.putExtra(Intent.EXTRA_KEY_EVENT, event);
context.sendBroadcastAsUser(intent, UserHandle.CURRENT, null);
return true;
}
}
return false;
}
android原本處理是將其發送廣播到指定的ComponentName,
稍作修改,將其改爲啓動指定的ComponentName的activity即可
private void openApk(ComponentName componentName) {
Intent mintent = new Intent();
mintent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
mintent.setComponent(componentName);
try {
mContext.startActivity(mintent);
} catch (Exception e) {
e.printStackTrace();
}
}
boolean handleGlobalKey(Context context, int keyCode, KeyEvent event) {
if (mKeyMapping.size() > 0) {
ComponentName component = mKeyMapping.get(keyCode);
if (component != null) {
openApk(component);
return true;
}
}
return false;
}