[英]Creating RelativeLayout with no XML file
I need to create this layout purely in Java and not in XML. 我需要仅使用Java而不是XML来创建此布局。 This means I have no XML in Eclipse for this project.
这意味着我在Eclipse中没有针对该项目的XML。 Right now my layout looks like this:
现在,我的布局如下所示:
You might not be able to tell from the picture but blocks 0, 1 and 3 are all on top of each other. 您可能无法从图片中分辨出来,但是块0、1和3彼此重叠。 I need the 5 blocks to look like this:
我需要5个块才能看起来像这样:
0 1 2
3 4
This is my first time not using an XML file to make Activity layouts so I am inching along with figuring this stuff out. 这是我第一次不使用XML文件制作“活动”布局,因此我正在逐步弄清楚这些内容。 And if you notice me doing something entirely the "long" way when I could write the code more efficiently, let me know please.
而且,如果您发现我在更高效地编写代码时完全以“漫长的”方式进行工作,请告诉我。
But my question is, why aren't the blocks laying the order I need them? 但是我的问题是,为什么这些障碍物不能按我需要的顺序排列? I feel like I am messing something up that is simple.
我觉得我在搞弄简单的事情。
public class Puzzle extends Activity {
int z1to5 = 50;
int z6to10 = 50;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.XXXXX);
RelativeLayout relativelayout = new RelativeLayout(getApplicationContext());
Button bList[] = new Button[5];
for (int i = 0; i < 5; i++) {
Button button = new Button(getApplicationContext());
button = new Button(getApplicationContext());
button.setId(i);
button.setText("" + i);
relativelayout.addView(button);
bList[i] = button;
}
RelativeLayout.LayoutParams params0 = new RelativeLayout.LayoutParams(150, 150);
bList[0].setLayoutParams(params0);
RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams(150, 150);
params1.addRule(RelativeLayout.RIGHT_OF, bList[0].getId());
bList[1].setLayoutParams(params1);
RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(150, 150);
params2.addRule(RelativeLayout.RIGHT_OF, bList[1].getId());
bList[2].setLayoutParams(params2);
RelativeLayout.LayoutParams params3 = new RelativeLayout.LayoutParams(150, 150);
params3.addRule(RelativeLayout.BELOW, bList[0].getId());
bList[3].setLayoutParams(params3);
RelativeLayout.LayoutParams params4 = new RelativeLayout.LayoutParams(150, 150);
params4.addRule(RelativeLayout.RIGHT_OF, bList[3].getId());
params4.addRule(RelativeLayout.BELOW, bList[1].getId());
bList[4].setLayoutParams(params4);
setContentView(relativelayout);
}
}
I got it working with this change: 我可以使用此更改:
for (int i = 0; i < 5; i++) {
Button button = new Button(getApplicationContext());
button = new Button(getApplicationContext());
button.setId(i+1);
button.setText("" + i);
relativelayout.addView(button);
bList[i] = button;
}
button.setId(i+1);
I can't find it in the docs, but maybe when you make a new View programmatically, the default NO_ID equals 0
? 我在文档中找不到它,但是也许当您以编程方式创建一个新View时,默认NO_ID等于
0
吗?
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