Android 以编程方式设置 TextView 的布局权重

Set the layout weight of a TextView programmatically

提问by eugene

I'm trying to dynamically create TableRowobjects and add them to a TableLayout. The TableRowobjects has 2 items, a TextViewand a CheckBox. The TextViewitems need to have their layout weight set to 1 to push the CheckBoxitems to the far right.

我正在尝试动态创建TableRow对象并将它们添加到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，推动CheckBox项目的最右边。

I can't find documentation on how to programmatically set the layout weight of a TextViewitem.

我找不到有关如何以编程方式设置TextView项目布局权重的文档。

回答by Macarse

You have to use TableLayout.LayoutParamswith something like this:

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));

The last parameter is the weight.

最后一个参数是权重。

回答by Dorje

The answer is that you have to use TableRow.LayoutParams, not LinearLayout.LayoutParams or any other LayoutParams.

答案是您必须使用 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);

The different LayoutParams are not interchangeable and if you use the wrong one then nothing seems to happen. The text view's parent is a table row, hence:

不同的 LayoutParams 不可互换，如果您使用错误的一个，那么似乎什么都不会发生。文本视图的父级是一个表格行，因此：

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

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

回答by sberezin

In the earlier answers weightis passed to the constructor of a new SomeLayoutType.LayoutParams object. Still in many cases it's more convenient to use existing objects - it helps to avoid dealing with parameters we are not interested in.

在前面的答案中，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。

An example:

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);

回答by sberezin

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

1f is denotes as weight=1; you can give 2f or 3f, views will move accoding to the space

1f表示为权重=1；你可以给 2f 或 3f，视图会根据空间移动

回答by Manikandan

just set layout params in that layout like

只需在该布局中设置布局参数，例如

create param variable

创建参数变量

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

1f is weight variable

1f 是权重变量

set your widget or layout like

设置您的小部件或布局，例如

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

回答by anand krish

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

(OR)

（或者）

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

1f is refered as weight=1; according to your need you can give 2f or 3f, views will move accoding to the space. For making specified distance between views in Linear layout use weightsumfor "LinearLayout".

1f被称为权重=1；根据您的需要，您可以提供 2f 或 3f，视图将根据空间移动。为了使视图之间规定的距离在直线布局使用weightsum为“LinearLayout中”。

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);

回答by Ashok Reddy M

This should works to you

这应该对你有用

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

param.weight=1.0f;

回答by kiran boghra

You can also give weight separately like this ,

你也可以像这样单独给出重量，

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

 lp1.weight=1;

回答by Najem1234

This work for me, and I hope it will work for you also

这对我有用，我希望它也对你有用

Set the LayoutParams for the parent view first:

首先为父视图设置 LayoutParams：

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

then set for the TextView (child):

然后为 TextView (child) 设置：

 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); 

回答by Dmitry

There is another way to do this. In case you need to set only one parameter, for example 'height':

还有另一种方法可以做到这一点。如果您只需要设置一个参数，例如“高度”：

TextView textView = (TextView)findViewById(R.id.text_view);
ViewGroup.LayoutParams params = textView.getLayoutParams();
params.height = ViewGroup.LayoutParams.WRAP_CONTENT;
textView.setLayoutParams(params);