如何夸大在布局的ImageView对象的新副本? [英] How to inflate new copies of an ImageView object on a layout?
问题描述
我所要做的是创造的 N 的(在这种情况下9)ImageView的对象 R.id.tile
的副本,地点他们每个人在布局上的不同的坐标,并为每个它自己的唯一的标识符
What I am trying to do is create N (in this case 9) copies of the ImageView object R.id.tile
, place each of them at different coordinates on the layout, and give each its own unique identifier.
board_layout.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="fill_parent"
android:background="@drawable/backgroundcolor"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/topbar"
... >
<ImageButton
android:id="@+id/imagebutton"
... />
</LinearLayout>
<RelativeLayout
android:id="@+id/board"
android:layout_width="match_parent"
android:layout_height="345dp"
android:layout_centerVertical="true"
android:background="@drawable/wwfboard" >
<view class="languid.legend.xsolver.DrawView"
android:id="@+id/myView"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<ImageView
android:id="@+id/tile"
android:layout_width="21dp"
android:layout_height="21dp"
android:src="@drawable/tile" />
</RelativeLayout>
</RelativeLayout>
BoardLayout.class:
BoardLayout.class:
@Override
protected void onCreate(Bundle savedInstance)
{ super.onCreate(savedInstance);
setContentView(R.layout.board_layout);
LayoutInflater inflater = (LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View[] tiles = new ImageView[9];
entire_layout = (RelativeLayout)findViewById(R.layout.board_layout);
for(int i = 0; i<tiles.length; i++){
tiles[i] = (ImageView) inflater.inflate(R.layout.board_layout, null);
tiles[i].setId(1000+i);
params = new RelativeLayout.LayoutParams(-1, 345);
params.leftMargin = 32*2*i;
params.topMargin = 34*2*i;
entire_layout.addView(tiles[i]);
}
...
不过,我不断收到源未找到在最后一行的错误: layout.addView(瓦[I]);
。 。
任何想法,为什么?
(方的问题:是RelativeLayout的比AbsoluteLayout更好,如果你正在使用的坐标)
However, I keep getting "Source not found" errors on the last line: layout.addView(tiles[i]);
..
Any ideas why?
(Side question: is RelativeLayout better than AbsoluteLayout if you're working with coordinates?)
推荐答案
编辑:
首先创建一个ImageView的布局与属性,你喜欢
First create a layout with one ImageView with the properties you like
例如:
创建文件的 RES /布局/ singleimage.xml
<?xml version="1.0" encoding="utf-8"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/image2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/ic_launcher"
android:contentDescription="Sample"/>
和再膨胀的ImageView
来得到它的拷贝像这样
And then inflate the ImageView
to get the copies of it like this
View[] tiles = new ImageView[9];
// get reference to LayoutInflater
LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
for(int i = 0; i<tiles.length; i++) {
//Creating copy of imageview by inflating it
ImageView image = (ImageView) inflater.inflate(R.layout.singleimage, null);
tiles[i] = image;
tiles[i].setId(i);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(-1, 345);
params.leftMargin = 32*2*3;
params.topMargin = 34*2*3;
layout.addView(tiles[i]);
}
您已经设置 ID
到我
值这里
You have set id
to i
value here
tiles[i].setId(i);
但你(错误地)试图从您的其他资源(你想克隆的那个)得到它:
But you are (incorrectly) trying to get it from your other resource (the one you wanted to 'clone'):
layout.addView(tiles[i] = (ImageView) findViewById(R.id.tile)); // INCORRECT
相反,将 ID
手动同上,然后:
layout.addView(tiles[i]);
和没有必要调用 findViewById()
这篇关于如何夸大在布局的ImageView对象的新副本?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!