Android 以编程方式居中 TextView 文本
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Programmatically center TextView text
提问by Alex Summers
I beg some leniency here, I'm just starting with the Android SDK tutorials and I'm attempting something out of interest that's not in the tutorial itself, but I would hope would be easy.
我在这里请求宽大处理，我只是从 Android SDK 教程开始，我正在尝试一些不属于教程本身的兴趣，但我希望会很容易。
I am trying to center a TextViewitem via code horizontally and vertically (I can do it in XML just fine). I've seen several examples of how to do this when the parent is a table or some other object, but I hope this would be easier for me to grasp. (p.s. Feel free to correct my terminology).
我试图TextView通过代码水平和垂直居中（我可以在 XML 中做到这一点）。我已经看到了几个示例，说明当父对象是桌子或其他对象时如何执行此操作，但我希望这对我来说更容易掌握。（ps 请随意更正我的术语）。
Here is the example code from the tutorial / my working model:
这是教程/我的工作模型中的示例代码：
package com.example.myfirstapp;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.ViewGroup.LayoutParams;
import android.widget.TextView;
public class DisplayMessageActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
TextView textView = new TextView(this);
textView.setTextSize(40);
textView.setText(message);
textView.setGravity(View.TEXT_ALIGNMENT_GRAVITY);
setContentView(textView);
}
}
I've managed to locate the setGravitymethod, and I've tried to dabble in the setLayoutParamsfor it, but I'm not sure what the scope is for it as I can't locate what I should be importing to get the WRAP_CONTENTconstant to resolve. From what I understood, centering and content_wrapping+gravity are two separate things. I'd like an example of how to do both in this case and maybe how/where I would have found the answer in the API documentation?
我设法找到了该setGravity方法，并尝试涉足setLayoutParams它，但我不确定它的范围是什么，因为我无法找到应该导入的内容WRAP_CONTENT来解决常量. 据我了解，居中和 content_wrapping+gravity 是两个独立的事情。我想要一个在这种情况下如何做的例子，也许我会在 API 文档中找到答案的方式/位置？
回答by Syn3sthete
yourTextView.setGravity(Gravity.CENTER);
回答by Nirav Ranpara
For dynamically center
对于动态居中
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
回答by Naveen Tamrakar
TextView text = new TextView(this);
text.setGravity(Gravity.CENTER);
and
和
text.setGravity(Gravity.TOP);
and
和
text.setGravity(Gravity.BOTTOM);
and
和
text.setGravity(Gravity.LEFT);
and
和
text.setGravity(Gravity.RIGHT);
and
和
text.setGravity(Gravity.CENTER_VERTICAL);
and
和
text.setGravity(Gravity.CENTER_HORIZONTAL);
And More Also Avaliable
还有更多可用
回答by Kalpesh Lakhani
this will work for sure..
这肯定会起作用..
RelativeLayout layout = new RelativeLayout(R.layout.your_layour);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.CENTER_IN_PARENT);
params.addRule(LinearLayout.CENTER_IN_PARENT);
textView.setLayoutParams(params);
textView.setGravity(Gravity.CENTER);
layout.addView(textView);
setcontentView(layout);
回答by Antrromet
Try adding the following code for applying the layout params to the TextView
尝试添加以下代码以将布局参数应用于 TextView
LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
lp.addRule(LinearLayout.CENTER_IN_PARENT);
textView.setLayoutParams(lp);
回答by arif ardiansyah
if your text size is small, you should make the width of your text view to be "fill_parent". After that, you can set your TextView Gravity to center :
如果您的文本尺寸较小，您应该将文本视图的宽度设置为“fill_parent”。之后，您可以将 TextView Gravity 设置为 center ：
TextView textView = new TextView(this);
textView.setText(message);
textView.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
textView.setGravity(Gravity.CENTER);
回答by Ads
You can use the following to programmatically center TextViewtext in Kotlin:
您可以使用以下内容以编程方式TextView在 Kotlin 中居中文本：
textview.gravity = Gravity.CENTER
回答by Sai Gopi N
try this method
试试这个方法
public void centerTextView(LinearLayout linearLayout) {
TextView textView = new TextView(context);
textView.setText(context.getString(R.string.no_records));
textView.setTypeface(Typeface.DEFAULT_BOLD);
textView.setGravity(Gravity.CENTER);
textView.setTextSize(18.0f);
textView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
linearLayout.addView(textView);
}
回答by kioa845 - The Samoan Developer
These two need to go together for it to work. Been scratching my head for a while.
这两个需要一起工作才能发挥作用。挠我的头有一段时间了。
numberView.textAlignment = View.TEXT_ALIGNMENT_CENTER
numberView.layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT)
