ListView控件+的ImageButton + descendantFocusability [英] ListView + ImageButton + descendantFocusability

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本文介绍了ListView控件+的ImageButton + descendantFocusability的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有一个列表视图,而我添加行1的ImageButton ..我试图设置的ImageButton的setfocusable虚假的,但仍无法正常工作。

item_list.xml

 < XML版本=1.0编码=UTF-8&GT?;
< RelativeLayout的的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
          机器人:layout_width =FILL_PARENT
          机器人:layout_height =160dp
          机器人:descendantFocusability =blocksDescendants
          机器人:ID =@ + ID / RL_item>

    <的ImageButton
            机器人:layout_width =200dp
            机器人:layout_height =FILL_PARENT
            机器人:ID =@ + ID / ImageButton的
            机器人:layout_alignParentTop =真
            机器人:layout_alignParentLeft =真
            机器人:layout_alignParentBottom =真/>

    <的LinearLayout
            机器人:layout_width =FILL_PARENT
            机器人:layout_height =WRAP_CONTENT
            机器人:ID =@ + ID / LL_Installed
            机器人:layout_alignRight =@ + ID / textView2
            机器人:layout_alignBottom =@ + ID / TextView的
            机器人:layout_alignParentBottom =真
            机器人:paddingBottom会=@扪/ item_list_left_right
            机器人:以下属性来=@扪/ item_list_left_right
            机器人:可聚焦=假
            机器人:focusableInTouchMode =假>

        < ImageView的
                机器人:layout_width =20dp
                机器人:layout_height =20dp
                机器人:ID =@ + ID / ImageView的
                机器人:背景=@可绘制/滴答
                机器人:可聚焦=假
                机器人:focusableInTouchMode =FALSE/>

        <的TextView

                机器人:layout_height =FILL_PARENT
                机器人:textAppearance =机器人:ATTR / textAppearanceMedium
                机器人:文本=@字符串/ list_item_installed
                机器人:ID =@ + ID / textView3
                机器人:以下属性来=6DP
                机器人:文字颜色=#FFFFFF
                风格=@风格/ TextShadow
                机器人:重力=center_vertical | fill_vertical
                机器人:layout_weight =1
                机器人:layout_width =0dip
                机器人:可聚焦=假
                机器人:focusableInTouchMode =FALSE/>

    < / LinearLayout中>

    <进度
            风格=机器人:ATTR / progressBarStyleHorizo​​ntal
            机器人:layout_width =WRAP_CONTENT
            机器人:layout_height =WRAP_CONTENT
            机器人:ID =@ + ID /进度
            机器人:layout_centerVertical =真
            机器人:layout_alignParentLeft =真
            机器人:layout_alignParentRight =真
            机器人:能见度=隐形
            机器人:可聚焦=假
            机器人:focusableInTouchMode =FALSE/>

    <的TextView
            机器人:layout_width =WRAP_CONTENT
            机器人:layout_height =WRAP_CONTENT
            机器人:textAppearance =机器人:ATTR / textAppearanceMedium
            机器人:文本=
            机器人:ID =@ + ID / textView2
            机器人:layout_alignParentTop =真
            机器人:layout_alignParentRight =真
            风格=@风格/ TextShadow
            机器人:paddingTop =@扪/ item_list_top
            机器人:paddingRight =@扪/ item_list_left_right
            机器人:可聚焦=假
            机器人:focusableInTouchMode =FALSE/>

    <的TextView
            机器人:layout_width =WRAP_CONTENT
            机器人:layout_height =WRAP_CONTENT
            机器人:textAppearance =机器人:ATTR / textAppearanceLarge
            机器人:文本=
            机器人:ID =@ + ID / TextView的
            机器人:layout_alignParentTop =真
            机器人:layout_alignParentLeft =真
            风格=@风格/ TextShadow
            机器人:layout_toLeftOf =@ + ID / textView2
            机器人:以下属性来=@扪/ item_list_left_right
            机器人:paddingTop =@扪/ item_list_top
            机器人:可聚焦=假
            机器人:focusableInTouchMode =FALSE/>
< / RelativeLayout的>
 

Item_ListAdapter.java

 公共类Item_ListAdapter扩展了BaseAdapter {


私人最终活动的活动;
私人最终的ArrayList< Item_List>项目;
私人的VI;
私人的ImageButton按钮;

公共Item_ListAdapter(活动活动,ArrayList的< Item_List>项目){
    this.activity =活动;
    this.items =项目;
}

@覆盖
公众诠释getCount将(){
    返回items.size();
}

@覆盖
公共对象的getItem(INT位置){
    返回items.get(位置);
}

@覆盖
众长getItemId(INT位置){
    返回items.get(位置).getId();
}

@覆盖
公共查看getView(INT位置,查看convertView,ViewGroup中父){
    VI = convertView;

    如果(convertView == NULL){
        LayoutInflater充气=(LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        VI = inflater.inflate(R.layout.item_list,NULL);


    }

    Item_List项目= items.get(位置);


    // Colocar埃尔TITULO
    // Colocar洛杉矶出生日期
    // Colocar EL背景
    // Hacer可见Ø无形EL布局德instalado


    TextView的txtTitulo =(TextView中)vi.findViewById(R.id.textView);
    TextView的txtFecha =(TextView中)vi.findViewById(R.id.textView2);
    的LinearLayout LL_Installed =(的LinearLayout)vi.findViewById(R.id.LL_Installed);

    txtTitulo.setText(item.getTitle());
    txtFecha.setText(item.getFecha());

    如果(item.getInstalled()){
        LL_Installed.setVisibility(View.VISIBLE);


        资源RES = vi.getResources();
        点阵位图= BitmapFactory.de codeFILE(item.getRutaImagen());
        最后BitmapDrawable BD =新BitmapDrawable(资源,位图);

        // ----------------------------------


        按钮=(的ImageButton)vi.findViewById(R.id.imageButton);
        //button.setBackgroundDrawable(bd);
        button.setBackground(BD);
        button.setOnTouchListener(新View.OnTouchListener(){

            @覆盖
            公共布尔onTouch(视图V,MotionEvent事件){
                如果(event.getAction()== MotionEvent.ACTION_DOWN){
                    v.getBackground()setColorFilter(Color.parseColor(#B7B2B0),PorterDuff.Mode.MULTIPLY)。
                    Log.d(AAA,DOWN);
                    返回true;
                }否则,如果(event.getAction()== MotionEvent.ACTION_UP){
                    。v.getBackground()clearColorFilter();
                    v.invalidate();
                    Log.d(AAA,向上);
                    返回true;
                }
                返回false;
            }
        });


    } 其他 {
        LL_Installed.setVisibility(View.INVISIBLE);
    }

    返回六;
}
 

这是我的'主'code ..我想在这里检测到preSS

 的ListView LV =(ListView控件)findViewById(R.id.listView);


    Item_ListAdapter适配器=新Item_ListAdapter(ListActivity.this,项目);
    lv.setAdapter(适配器);
    lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);


    lv.setOnItemClickListener(新AdapterView.OnItemClickListener(){

        @覆盖
        公共无效onItemClick(适配器视图<> parnet,android.view.View认为,INT位置,长的id){


            //阙项目公顷内幕交易pulsado
            Toast.makeText(getApplicationContext(),将String.valueOf(位置),Toast.LENGTH_SHORT).show();
            Log.d(AAA,将String.valueOf(位置));

        }
    });
 

解决方案

我相信,以同时拥有的ListView行和ImageButton的点击,你就需要设置这两个的ImageButton的对象:

 机器人:可调焦=假
  机器人:focusableInTouchMode =假
 

把那一个镜头。我也想尝试使用onClickListener您的ImageButton,而不是touchListener。

I have a listview to which I add rows with 1 imagebutton .. I tried to set the imagebutton the setfocusable false but still not working ..

item_list.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="fill_parent"
          android:layout_height="160dp"
          android:descendantFocusability="blocksDescendants"
          android:id="@+id/RL_item">

    <ImageButton
            android:layout_width="200dp"
            android:layout_height="fill_parent"
            android:id="@+id/imageButton"
            android:layout_alignParentTop="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentBottom="true" />

    <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:id="@+id/LL_Installed"
            android:layout_alignRight="@+id/textView2"
            android:layout_alignBottom="@+id/textView"
            android:layout_alignParentBottom="true"
            android:paddingBottom="@dimen/item_list_left_right"
            android:paddingLeft="@dimen/item_list_left_right"
            android:focusable="false"
            android:focusableInTouchMode="false">

        <ImageView
                android:layout_width="20dp"
                android:layout_height="20dp"
                android:id="@+id/imageView"
                android:background="@drawable/tick"
                android:focusable="false"
                android:focusableInTouchMode="false"/>

        <TextView

                android:layout_height="fill_parent"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:text="@string/list_item_installed"
                android:id="@+id/textView3"
                android:paddingLeft="6dp"
                android:textColor="#ffffff"
                style="@style/TextShadow"
                android:gravity="center_vertical|fill_vertical"
                android:layout_weight="1"
                android:layout_width="0dip"
                android:focusable="false"
                android:focusableInTouchMode="false"/>

    </LinearLayout>

    <ProgressBar
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/progressBar"
            android:layout_centerVertical="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentRight="true"
            android:visibility="invisible"
            android:focusable="false"
            android:focusableInTouchMode="false"/>

    <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text=""
            android:id="@+id/textView2"
            android:layout_alignParentTop="true"
            android:layout_alignParentRight="true"
            style="@style/TextShadow"
            android:paddingTop="@dimen/item_list_top"
            android:paddingRight="@dimen/item_list_left_right"
            android:focusable="false"
            android:focusableInTouchMode="false"/>

    <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text=""
            android:id="@+id/textView"
            android:layout_alignParentTop="true"
            android:layout_alignParentLeft="true"
            style="@style/TextShadow"
            android:layout_toLeftOf="@+id/textView2"
            android:paddingLeft="@dimen/item_list_left_right"
            android:paddingTop="@dimen/item_list_top"
            android:focusable="false"
            android:focusableInTouchMode="false"/>
</RelativeLayout>

Item_ListAdapter.java

public class Item_ListAdapter extends BaseAdapter {


private final Activity activity;
private final ArrayList<Item_List> items;
private View vi;
private ImageButton button;

public Item_ListAdapter(Activity activity, ArrayList<Item_List> items) {
    this.activity = activity;
    this.items = items;
}

@Override
public int getCount() {
    return items.size();
}

@Override
public Object getItem(int position) {
    return items.get(position);
}

@Override
public long getItemId(int position) {
    return items.get(position).getId();
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    vi=convertView;

    if(convertView == null) {
        LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        vi = inflater.inflate(R.layout.item_list, null);


    }

    Item_List item = items.get(position);


    // Colocar el titulo
    // Colocar la fecha
    // Colocar el background
    // Hacer visible o invisible el layout de instalado


    TextView txtTitulo = (TextView) vi.findViewById(R.id.textView);
    TextView txtFecha = (TextView) vi.findViewById(R.id.textView2);
    LinearLayout LL_Installed = (LinearLayout) vi.findViewById(R.id.LL_Installed);

    txtTitulo.setText(item.getTitle());
    txtFecha.setText(item.getFecha());

    if (item.getInstalled()) {
        LL_Installed.setVisibility(View.VISIBLE);


        Resources res = vi.getResources();
        Bitmap bitmap = BitmapFactory.decodeFile(item.getRutaImagen());
        final BitmapDrawable bd = new BitmapDrawable(res, bitmap);

        // ----------------------------------


        button = (ImageButton) vi.findViewById(R.id.imageButton);
        //button.setBackgroundDrawable(bd);
        button.setBackground(bd);
        button.setOnTouchListener(new View.OnTouchListener() {

            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (event.getAction() == MotionEvent.ACTION_DOWN) {
                    v.getBackground().setColorFilter(Color.parseColor("#B7B2B0"), PorterDuff.Mode.MULTIPLY);
                    Log.d("aaa","DOWN");
                    return true;
                } else if (event.getAction() == MotionEvent.ACTION_UP) {
                    v.getBackground().clearColorFilter();
                    v.invalidate();
                    Log.d("aaa","UP");
                    return true;
                }
                return false;
            }
        });


    } else {
        LL_Installed.setVisibility(View.INVISIBLE);
    }

    return vi;
}

This is my 'main' code.. i want detect the press here

    ListView lv = (ListView)findViewById(R.id.listView);


    Item_ListAdapter adapter = new Item_ListAdapter(ListActivity.this, items);
    lv.setAdapter(adapter);
    lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);


    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parnet, android.view.View view, int position, long id) {


            // Que item ha sido pulsado
            Toast.makeText(getApplicationContext(), String.valueOf(position), Toast.LENGTH_SHORT).show();
            Log.d("aaa", String.valueOf(position) );

        }
    });

解决方案

I believe in order to have BOTH the listView row and the ImageButton clickable, you'll need to set both of these on the ImageButton object:

  android:focusable="false"
  android:focusableInTouchMode="false"

Give that a shot. I'd also try using an onClickListener on your ImageButton instead of the touchListener.

这篇关于ListView控件+的ImageButton + descendantFocusability的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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