如何从textview字符串制作按钮

时间:2019-03-11 15:15:59

标签: android button textview

如何从实用的textview中用逗号分隔的字符串制作按钮。

TextView ingredient_txtview = (TextView) findViewById(R.id.recipe);

    String ingredients = ingredient_txtview.getText();

    String[] btnArray = ingredients.split(",");

    for(int i=0;i<btnArray.length;i++){
       // something 
    }

示例:

[Textview]“ Button1,Button2,Button3”

结果:

[Button] Button1

[Button] Button2

[Button] Button3

2 个答案:

答案 0 :(得分:0)

首先,您必须创建布局(记住id od根元素):

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/linear_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

</LinearLayout>

接下来,您可以在“活动”(例如Kotlin中的示例)中使用此布局:

import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.widget.Button
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {

    var listOfButtons: MutableList<Button> = ArrayList()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val input = "Button1, Button2, Button3"

        val split = input.split(", ")

        for (text in split) {
            val button = Button(this)

            button.text = text

            linear_layout.addView(button)

            listOfButtons.add(button)
        }
    }
}

您可以期待这样的输出: enter image description here

答案 1 :(得分:0)

List<Button> btns = new ArrayList();
for (String name: txtView.getText().split(",")){
    Button b = new Button(context);
    b.setText(name);
    btns.add(b);
}