标签:direction KeyEvent FOCUS KEYCODE 按键 下移 Android event View
frameworks/base/core/java/android/view/ViewRootImpl.java
private boolean performFocusNavigation(KeyEvent event) {
switch (event.getKeyCode()) {
case KeyEvent.KEYCODE_DPAD_LEFT:
if (event.hasNoModifiers()) {
direction = View.FOCUS_LEFT;
}
break;
case KeyEvent.KEYCODE_DPAD_RIGHT:
if (event.hasNoModifiers()) {
direction = View.FOCUS_RIGHT;
}
break;
case KeyEvent.KEYCODE_DPAD_UP:
if (event.hasNoModifiers()) {
direction = View.FOCUS_UP;
}
break;
+ case KeyEvent.KEYCODE_DPAD_DOWN:
+ //wangrui For Settings.apk, let the ↓ key have the function of selecting the first-level directory. In other cases, the ↓ key will be performed in the default way.
+ if (!("com.android.settings".equals(cn.getPackageName()))){
+ if (event.hasNoModifiers()) {
+ direction = View.FOCUS_DOWN;
+ }
+ break;
+ }
case KeyEvent.KEYCODE_TAB:
if (event.hasNoModifiers()) {
direction = View.FOCUS_FORWARD;
} else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) {
direction = View.FOCUS_BACKWARD;
}
break;
}
}
标签:direction,KeyEvent,FOCUS,KEYCODE,按键,下移,Android,event,View 来源: https://blog.csdn.net/qq_27494201/article/details/121919694
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