以編程方式點擊按鈕時添加EditText和Spinner

所以我有一個類在按下按鈕時動態添加文本字段和微調器。問題是添加的文本字段和按鈕沒有正確對齊。它在彼此頂部，但我希望它放在一起。我將方向設置爲「水平」，但不起作用。此外，項目列表不會顯示給添加的微調器。有人能幫我嗎？我是Android開發新手。謝謝。這是我的代碼。以編程方式點擊按鈕時添加EditText和Spinner

import java.util.ArrayList; 
import java.util.List; 

import android.os.Bundle; 
import android.app.ActionBar.LayoutParams; 
import android.app.Activity; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.LinearLayout; 
import android.widget.RelativeLayout; 
import android.widget.Spinner; 

public class AddField extends Activity { 

private LinearLayout mLayout, mLayout2; 
private EditText qty, price ; 
private Button mButton; 
private Spinner mspinner; 



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

    final List<String> list=new ArrayList<String>(); 

    list.add("Male"); 
    list.add("Female"); 


final String[] str={"Male","Female"}; 

    mspinner = (Spinner) findViewById(R.id.itemSpin); 
    ArrayAdapter<String> adp1=new ArrayAdapter<String>(this, 
      android.R.layout.simple_list_item_1,list); 
adp1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
mspinner.setAdapter(adp1); 



    mLayout = (LinearLayout) findViewById(R.id.linearLayout); 
    mLayout2 = (LinearLayout) findViewById(R.id.linearLayout); 





    qty = (EditText) findViewById(R.id.inputQty); 

    price = (EditText) findViewById(R.id.inputPrice); 

    mButton = (Button) findViewById(R.id.button); 
    mButton.setOnClickListener(onClick()); 





} 

private OnClickListener onClick() { 
return new OnClickListener() { 

@Override 
public void onClick(View v) { 
    mLayout2.addView(createNewSpin(mspinner.getContext().toString())); 
    mLayout2.addView(createNewQty(qty.getText().toString())); 
    mLayout2.addView(createNewPrice(price.getText().toString())); 

} 
}; 
} 

private Spinner createNewSpin(String text) { 


final LayoutParams lparams = new LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 

final Spinner spinner = new Spinner(this); 
spinner.setLayoutParams(lparams); 

return spinner; 
} 

private EditText createNewQty(String text) { 


    final LayoutParams lparams = new LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 

    final EditText editText = new EditText(this); 
    editText.setLayoutParams(lparams); 
    editText.setHint("Quantity"); 
    return editText; 
} 


private EditText createNewPrice(String text) { 
final LayoutParams paramss = new LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,  RelativeLayout.LayoutParams.WRAP_CONTENT); 

final EditText editText2 = new EditText(this); 
editText2.setLayoutParams(paramss); 
editText2.setHint("Price"); 
return editText2; 
}

來源

2014-02-20 jajaja

您能否請您出示您的進口款？我想你應該在實例化視圖之前創建LinearLayout.LayoutParams對象並將ViewGroup.LayoutParams.WRAP_CONTENT傳遞給構造函數。

UPD。 刪除import android.app.ActionBar.LayoutParams並只使用LinearLayout.LayoutParams類，因爲您以編程方式在LinearLayout上添加您的視圖。嘗試將佈局方向設置爲水平後。此外，當您在createNewSpin方法中創建微調器時，您應該爲其設置適配器。更好的方法是在活動類中創建一個私人字段mSpinnerAdapter，並在onCreate時將其實例化一次。然後每個新的createnewSpin調用只需設置此適配器：spinner.setAdapter(mSpinnerAdapter);，你會得到每個你創建的微調列表

來源

2014-02-20 09:51:14 despectra

我已經添加了導入。 – jajaja

以編程方式點擊按鈕時添加EditText和Spinner

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