Question

我有一个问题，因为我可以获取已插入编辑文本的所有数据？编辑文本在循环中，我需要一种方法来获取这些值并使用它们，尝试使用数组但我得到错误。能帮到我吗？任何的想法？救命啊！

package com.example.test;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;

public class MainActivity extends Activity {

    public static final String TAG = MainActivity.class.getSimpleName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        final EditText count = (EditText) findViewById(R.id.count);
        final Button generate = (Button) findViewById(R.id.generate);
        final LinearLayout container = (LinearLayout) findViewById(R.id.container);

        generate.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                int numberOfControlsToGenerate = 0;

                try {
                    numberOfControlsToGenerate = Integer.parseInt(count.getText().toString().trim());
                } catch (NumberFormatException e) {
                    Log.e(TAG, e.getMessage(), e);
                }

                if (numberOfControlsToGenerate > 0) {

                    if (container.getChildCount() > 0) {
                        container.removeAllViews();
                    }

                    for (int counter = 0; counter < numberOfControlsToGenerate; counter++) {
                        addEditText(container);
                    }
                }
            }
        });
    }

    private void addEditText(LinearLayout container) {
        final LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
        EditText editTextToAdd = new EditText(this);
        editTextToAdd.setLayoutParams(params);
        container.addView(editTextToAdd);
    }
}

Answer 1

您可以使用数组创建多个edittext。

public class MainActivity extends Activity{

EditText[] sample_et; 
int numberOfControlsToGenerate = 10;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main_layout);

    LinearLayout root_layout = (LinearLayout)findViewById(R.id.root);

    sample_et = new EditText[numberOfControlsToGenerate];
    //numberOfControlsToGenerate is decleres statically you can get the count from edit text
    for(int i = 0; i < count; i++ ){
        sample_et[i] = new EditText(this);
        root_layout.addView(sample_et[i]);

    }


}

}

Answer 2

创建动态EditText

时添加setTag

在addEditText(LinearLayout container)方法

中添加一行

private void addEditText(LinearLayout container) {
    final LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
    EditText editTextToAdd = new EditText(this);
    editTextToAdd.setLayoutParams(params);
    editTextToAdd.setTag(editTextToAdd); //Add this Line
    container.addView(editTextToAdd);
}

在任何Button上编写onClick侦听器代码

getvalue.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
        for (int i = 0; i < container.getChildCount(); i++) {
            if(container.getChildAt(i) instanceof EditText) {
                EditText et = (EditText) container.getChildAt(i).getTag();
                if(et != null) {
                    Log.i("<Tag Name>", et.getText().toString());
                }
            }
        }

    }
   });

从循环中的编辑文本中获取值

2 个答案: