以编程方式设置TextView的布局权重

Question

我正在尝试动态创建TableRow对象并将其添加到TableLayout.该TableRow对象有2个项目,一个TextView和CheckBox.该TextView项目需要有自己的布局权重设置为1,以推动CheckBox项目的最右边.

我找不到有关如何以编程方式设置项目的布局权重的文档TextView.

Answer 1

你必须使用TableLayout.LayoutParams这样的东西:

TextView tv = new TextView(v.getContext());
tv.setLayoutParams(new TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1f));

最后一个参数是重量.

Answer 2

答案是你必须使用TableRow.LayoutParams,而不是LinearLayout.LayoutParams或任何其他LayoutParams.

TextView tv = new TextView(v.getContext());
LayoutParams params = new TableRow.LayoutParams(0, LayoutParams.WRAP_CONTENT, 1f);
tv.setLayoutParams(params);

不同的LayoutParams不可互换,如果你使用错误的,那么似乎什么也没发生.文本视图的父级是一个表行,因此:

http://developer.android.com/reference/android/widget/TableRow.LayoutParams.html

Answer 3

在之前的答案中,权重被传递给新的SomeLayoutType.LayoutParams对象的构造函数.在许多情况下,使用现有对象更方便 - 它有助于避免处理我们不感兴趣的参数.

一个例子:

// Get our View (TextView or anything) object:
View v = findViewById(R.id.our_view); 

// Get params:
LinearLayout.LayoutParams loparams = (LinearLayout.LayoutParams) v.getLayoutParams();

// Set only target params:
loparams.height = 0;
loparams.weight = 1;
v.setLayoutParams(loparams);

Answer 4

TextView txtview = new TextView(v.getContext());
LayoutParams params = new LinearLayout.LayoutParams(0, LayoutParams.WRAP_CONTENT, 1f);
txtview.setLayoutParams(params);

1f表示权重= 1; 你可以给2f或3f,视图将根据空间移动

Answer 5

只需在布局中设置布局参数

创建param变量

 android.widget.LinearLayout.LayoutParams params = new android.widget.LinearLayout.LayoutParams(
            LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 1f);

1f是重量变量

设置你的小部件或布局

 TextView text = (TextView) findViewById(R.id.text);
 text.setLayoutParams(params);

Answer 6

TextView text = new TextView(v.getContext());
text.setLayoutParams(new TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT, 
                                                LayoutParams.WRAP_CONTENT, 1f));

(要么)

TextView tv = new TextView(v.getContext());
LayoutParams params = new TableRow.LayoutParams(0, LayoutParams.WRAP_CONTENT, 1f);
tv.setLayoutParams(params);

1f被称为weight = 1; 根据您的需要,你可以给2f或3f,视图将根据空间移动.要在线性布局中创建视图之间的指定距离,请使用权重 "LinearLayout".

LinearLayout ll_Outer= (LinearLayout ) view.findViewById(R.id.linearview);
LinearLayout llInner = new LinearLayout(this);
            LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FillParent, LinearLayout.LayoutParams.WrapContent);
            llInner.Orientation = Orientation.Horizontal;
            llInner.WeightSum = 2;
            ll_Outer.AddView(llInner);

Answer 7

你也可以像这样单独给予体重,

LayoutParams lp1 = new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT);

 lp1.weight=1;

Answer 8

这对你有用

LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT LayoutParams.MATCH_PARENT);

param.weight=1.0f;

Answer 9

这项工作对我来说,我希望它也适合你

首先为父视图设置LayoutParams:

myTableLayout.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.FILL_PARENT,
                TableLayout.LayoutParams.FILL_PARENT));

然后设置为TextView(子):

 TableLayout.LayoutParams textViewParam = new TableLayout.LayoutParams
     (TableLayout.LayoutParams.WRAP_CONTENT,
     TableLayout.LayoutParams.WRAP_CONTENT,1f);
     //-- set components margins
     textViewParam.setMargins(5, 0, 5,0);
     myTextView.setLayoutParams(textViewParam);