【发布时间】：2014-12-29 15:13:20
【问题描述】：
我想实现一个应用程序来存储有关冰箱内容的信息。 我开发的第一个布局是 5 个“楼层”，任何楼层都有 12 个 Button 和 12 个 TextView，但结果是 12x5= 60 个按钮和 60 个 textview。
我认为这个布局有很多资源......或者不是？ 代码实现起来更简单，但是性能很差！（我认为）。
这是第一个实现的代码：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:scrollbarStyle="insideOverlay"
android:scrollbars="vertical" >
<LinearLayout
android:id="@+id/LinearLayout0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:background="@drawable/a9p_09_11_00943" >
<GridLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:columnCount="8"
android:orientation="horizontal"
android:rowCount="4" >
<!-- prima riga P1 R1 -->
<ImageButton
android:id="@+id/btnP1C1R1"
android:layout_column="1"
android:layout_gravity="left|top"
android:layout_row="0"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C2R1"
android:layout_column="3"
android:layout_gravity="left|top"
android:layout_row="0"
android:background="@drawable/add_64" android:contentDescription="@string/store_add"/>
<ImageButton
android:id="@+id/btnP1C3R1"
android:layout_column="5"
android:layout_gravity="left|top"
android:layout_row="0"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<TextView
android:id="@+id/txtP1C1R1"
android:layout_width="@dimen/size_txt_view"
android:layout_column="2"
android:layout_gravity="left|center_vertical"
android:layout_row="0"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C2R1"
android:layout_width="@dimen/size_txt_view"
android:layout_column="4"
android:layout_gravity="left|center_vertical"
android:layout_row="0"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C3R1"
android:layout_width="@dimen/size_txt_view"
android:layout_column="6"
android:layout_gravity="left|center_vertical"
android:layout_row="0"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<!-- seconda riga P1 R2 -->
<ImageButton
android:id="@+id/btnP1C1R2"
android:layout_column="1"
android:layout_gravity="left|top"
android:layout_row="1"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C2R2"
android:layout_column="3"
android:layout_gravity="left|top"
android:layout_row="1"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C3R2"
android:layout_column="5"
android:layout_gravity="left|top"
android:layout_row="1"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<TextView
android:id="@+id/txtP1C1R2"
android:layout_column="2"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="1"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C2R2"
android:layout_column="4"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="1"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C3R2"
android:layout_column="6"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="1"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<!-- seconda riga P1 R3 -->
<ImageButton
android:id="@+id/btnP1C1R3"
android:layout_column="1"
android:layout_gravity="left|top"
android:layout_row="2"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C2R3"
android:layout_column="3"
android:layout_gravity="left|top"
android:layout_row="2"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C3R3"
android:layout_column="5"
android:layout_gravity="left|top"
android:layout_row="2"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<TextView
android:id="@+id/txtP1C1R3"
android:layout_column="2"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="2"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C2R3"
android:layout_column="4"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="2"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C3R3"
android:layout_column="6"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="2"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<!-- seconda riga P1 R4 -->
<ImageButton
android:id="@+id/btnP1C1R4"
android:layout_column="1"
android:layout_gravity="left|top"
android:layout_row="3"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C2R4"
android:layout_column="3"
android:layout_gravity="left|top"
android:layout_row="3"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C3R4"
android:layout_column="5"
android:layout_gravity="left|top"
android:layout_row="3"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<TextView
android:id="@+id/txtP1C1R4"
android:layout_column="2"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="3"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C2R4"
android:layout_column="4"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="3"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C3R4"
android:layout_column="6"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="3"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/textView1"
android:layout_column="0"
android:layout_row="0"
android:layout_gravity="left|center_vertical"
android:text="@string/store_4" />
<TextView
android:id="@+id/textView2"
android:layout_column="0"
android:layout_row="1"
android:layout_gravity="left|center_vertical"
android:text="@string/store_3" />
<TextView
android:id="@+id/textView3"
android:layout_column="0"
android:layout_row="2"
android:layout_gravity="left|center_vertical"
android:text="@string/store_2" />
<TextView
android:id="@+id/textView4"
android:layout_column="0"
android:layout_row="3"
android:layout_gravity="left|center_vertical"
android:text="@string/store_1" />
</GridLayout>
</LinearLayout>
第二个 Idea 是自定义 ListView。
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@drawable/a9p_09_11_00943">
<RelativeLayout
android:id="@+id/RelativeLayout0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true">
<ListView
android:id="@+id/listView"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignParentRight="true" >
</ListView>
</RelativeLayout>
</RelativeLayout>
自定义项有 12 个按钮和 12 个文本视图，像这样：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:scrollbarStyle="insideOverlay"
android:scrollbars="vertical" >
<LinearLayout
android:id="@+id/LinearLayout0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:background="@drawable/a9p_09_11_00943" >
<GridLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:columnCount="8"
android:orientation="horizontal"
android:rowCount="4" >
<!-- prima riga P1 R1 -->
<ImageButton
android:id="@+id/btnP1C1R1"
android:layout_column="1"
android:layout_gravity="left|top"
android:layout_row="0"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C2R1"
android:layout_column="3"
android:layout_gravity="left|top"
android:layout_row="0"
android:background="@drawable/add_64" android:contentDescription="@string/store_add"/>
<ImageButton
android:id="@+id/btnP1C3R1"
android:layout_column="5"
android:layout_gravity="left|top"
android:layout_row="0"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<TextView
android:id="@+id/txtP1C1R1"
android:layout_width="@dimen/size_txt_view"
android:layout_column="2"
android:layout_gravity="left|center_vertical"
android:layout_row="0"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C2R1"
android:layout_width="@dimen/size_txt_view"
android:layout_column="4"
android:layout_gravity="left|center_vertical"
android:layout_row="0"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C3R1"
android:layout_width="@dimen/size_txt_view"
android:layout_column="6"
android:layout_gravity="left|center_vertical"
android:layout_row="0"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<!-- seconda riga P1 R2 -->
<ImageButton
android:id="@+id/btnP1C1R2"
android:layout_column="1"
android:layout_gravity="left|top"
android:layout_row="1"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C2R2"
android:layout_column="3"
android:layout_gravity="left|top"
android:layout_row="1"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C3R2"
android:layout_column="5"
android:layout_gravity="left|top"
android:layout_row="1"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<TextView
android:id="@+id/txtP1C1R2"
android:layout_column="2"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="1"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C2R2"
android:layout_column="4"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="1"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C3R2"
android:layout_column="6"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="1"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<!-- seconda riga P1 R3 -->
<ImageButton
android:id="@+id/btnP1C1R3"
android:layout_column="1"
android:layout_gravity="left|top"
android:layout_row="2"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C2R3"
android:layout_column="3"
android:layout_gravity="left|top"
android:layout_row="2"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C3R3"
android:layout_column="5"
android:layout_gravity="left|top"
android:layout_row="2"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<TextView
android:id="@+id/txtP1C1R3"
android:layout_column="2"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="2"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C2R3"
android:layout_column="4"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="2"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C3R3"
android:layout_column="6"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="2"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<!-- seconda riga P1 R4 -->
<ImageButton
android:id="@+id/btnP1C1R4"
android:layout_column="1"
android:layout_gravity="left|top"
android:layout_row="3"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C2R4"
android:layout_column="3"
android:layout_gravity="left|top"
android:layout_row="3"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<ImageButton
android:id="@+id/btnP1C3R4"
android:layout_column="5"
android:layout_gravity="left|top"
android:layout_row="3"
android:background="@drawable/add_64" android:contentDescription="@string/store_add" />
<TextView
android:id="@+id/txtP1C1R4"
android:layout_column="2"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="3"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C2R4"
android:layout_column="4"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="3"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/txtP1C3R4"
android:layout_column="6"
android:layout_width="@dimen/size_txt_view"
android:layout_gravity="left|center_vertical"
android:layout_row="3"
android:text="@string/store_void"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/textView1"
android:layout_column="0"
android:layout_row="0"
android:layout_gravity="left|center_vertical"
android:text="@string/store_4" />
<TextView
android:id="@+id/textView2"
android:layout_column="0"
android:layout_row="1"
android:layout_gravity="left|center_vertical"
android:text="@string/store_3" />
<TextView
android:id="@+id/textView3"
android:layout_column="0"
android:layout_row="2"
android:layout_gravity="left|center_vertical"
android:text="@string/store_2" />
<TextView
android:id="@+id/textView4"
android:layout_column="0"
android:layout_row="3"
android:layout_gravity="left|center_vertical"
android:text="@string/store_1" />
</GridLayout>
</LinearLayout>
</RelativeLayout>
而且我有可能添加很多地板，超过 5 个！ 但是实现代码有很多困难： 1）当用户点击物品（冷冻层）时，如何为所有12个按钮实现button.setOnClickListener？
2)适配器内部getView的性能是快还是慢？
另一个想法是创建 5 个 Fragment，并在每个 Fragment 内部构建一个带有 12 个按钮和 12 个文本视图的 xml。 这个想法可能还是更复杂？ 还有其他想法吗？ 谢谢。
编辑
我尝试了另一种方法，通过动态地膨胀 xml：
容器：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/LinearLayout0"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:scrollbars="vertical" >
</LinearLayout>
代码：
private static final int[] BUTTON_IDS_P1 = {
R.id.btnP1C1R1,
R.id.btnP1C1R2,
R.id.btnP1C1R3,
R.id.btnP1C1R4,
R.id.btnP1C2R1,
R.id.btnP1C2R2,
R.id.btnP1C2R3,
R.id.btnP1C2R4,
R.id.btnP1C3R1,
R.id.btnP1C3R2,
R.id.btnP1C3R3,
R.id.btnP1C3R4
};
for(int i = 0; i < 5; i++){
final LayoutInflater inflater = (LayoutInflater) appContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View child = inflater.inflate(R.layout.ripiano_frigo, null);
child.setId(i);
lLayout = (LinearLayout) rootView.findViewById(R.id.LinearLayout0);
lLayout.addView(child);
buttons = new ArrayList<ImageButton>(BUTTON_IDS_P1.length);
int idt=0;
for(int id : BUTTON_IDS_P1) {
ImageButton button = (ImageButton)rootView.findViewById(id);
//button.setOnClickListener(this); // maybe
MyTag myTag = new MyTag(idt, id,TEXTVIEW_IDS_P1[idt++], 0, 0);
button.setTag(myTag);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
第一组按钮 (12) 一切正常，但如何配置其他按钮？第二组按钮的ID是哪个？
【问题讨论】：
标签： android arrays button textview