设置/禁用专注于GridView中某一个项目 [英] set/disable focus on a certain item in GridView

问题描述

我有我在一个适配器定义的项目的GridView。这些项目是由TextView的和ImageView的堆肥。我想控制的重点放在GridView控件，它看起来是这样的：

 （1）（2）（3）（4）
 

当我$键盘页上$ PSS右，焦点移到1-> 2-3> 4。我需要禁用焦点上2，即1-> 3-> 4。
我想：

 （（GridView控件）视图）.getChildAt（mPosition）.setNextFocusRightId（mGridView.getChildAt（mPosition + 2）.getId（））;
（（GridView控件）视图）.getChildAt（mPosition + 2）.requestFocus（）;
（（GridView控件）视图）.setSelection（mPosition + 2）;
 

在dispatchKeyEvent功能时所选择的位置0项目，但没有奏效。同时，我试过 getChildAt（mPosition + 1）.setSelected（假）
在GridView onFocusChangeListener，而且它确实没有好。我被这个问题卡住了。请人谁可以给我一张纸条？

解决方案

 如果（event.getKey code（）== KeyEvent.KEY code_DPAD_LEFT
                    ＆功放;＆安培; （event.getAction（）== KeyEvent.ACTION_DOWN））{
                如果（MTYPE == 0＆放大器;＆放大器; currentPos ==（disablePos + 1）及;＆放大器; disablePos＆GT; = 1）{
                    （（GridView控件）V）.getChildAt（disablePos）.setSelected（假）;
                    （（GridView控件）V）.getChildAt（disablePos  -  1）.requestFocus（）;
                    （（GridView控件）V）.setSelection（disablePos  -  1）;
                    返回true;
                }其他{
                    返回false;
                }如果（event.getKey code（）== KeyEvent.KEY code_DPAD_LEFT
                    ＆功放;＆安培; （event.getAction（）== KeyEvent.ACTION_DOWN））{
                如果（MTYPE == 0＆放大器;＆放大器; currentPos ==（disablePos + 1）及;＆放大器; disablePos＆GT; = 1）{
                    （（GridView控件）V）.getChildAt（disablePos）.setSelected（假）;
                    （（GridView控件）V）.getChildAt（disablePos  -  1）.requestFocus（）;
                    （（GridView控件）V）.setSelection（disablePos  -  1）;
                    返回true;
                }其他{
                    返回false;
                }
 

I have a GridView with items which I defined in an adapter. Those items are composted by TextView and ImageView. I want to control the focus on GridView, It looks like this:

(1) (2) (3) (4)

when I press "right" on keyboard, focus move 1->2-3>4. I need disable the focus on 2, that is 1->3->4. I tried :

((GridView) view).getChildAt(mPosition).setNextFocusRightId(mGridView.getChildAt(mPosition+2).getId());
((GridView) view).getChildAt(mPosition + 2).requestFocus();
((GridView) view).setSelection(mPosition + 2);

on dispatchKeyEvent function when item selected on position 0. But it didn't work. And also I tried getChildAt(mPosition + 1).setSelected(false) in the GridView onFocusChangeListener, and it did no good. I'm stuck by this problem. Please anyone who can give me a note?

解决方案

if (event.getKeyCode() == KeyEvent.KEYCODE_DPAD_LEFT
                    && (event.getAction() == KeyEvent.ACTION_DOWN)) {
                if (mType == 0 && currentPos == (disablePos + 1) && disablePos >= 1) {
                    ((GridView) v).getChildAt(disablePos).setSelected(false);
                    ((GridView) v).getChildAt(disablePos - 1).requestFocus();
                    ((GridView) v).setSelection(disablePos - 1);
                    return true;
                } else {
                    return false;
                }if (event.getKeyCode() == KeyEvent.KEYCODE_DPAD_LEFT
                    && (event.getAction() == KeyEvent.ACTION_DOWN)) {
                if (mType == 0 && currentPos == (disablePos + 1) && disablePos >= 1) {
                    ((GridView) v).getChildAt(disablePos).setSelected(false);
                    ((GridView) v).getChildAt(disablePos - 1).requestFocus();
                    ((GridView) v).setSelection(disablePos - 1);
                    return true;
                } else {
                    return false;
                }

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