以编程方式创建布局的最佳方式的提示

Question

我面临一个场景，其中我的main.xml的主要层次结构用XML编写，但主数据来自服务器，所以我需要在运行时组合布局。

请看看这screenshot以更好地了解我的情况。

我将有一个滚动视图，然后在它下面，一个线性布局。我在我的java类中检索这个布局并创建一个新的线性布局，这样我就可以创建新的TextViews和Buttons，就像我在LinearLayout 2中绘制的那样。最终结果与我预期的并不相符，而且我确实不知道该如何完成这个。

的代码是：

LinearLayout ll = (LinearLayout) findViewById(R.id.linearLayoutOffers); //this is the LinearLayout2 in SS 

    //Creating the container that will have one business. 
    LinearLayout containerMain = new LinearLayout(this); 
    containerMain.setOrientation(LinearLayout.VERTICAL); 
    containerMain.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); 
    containerMain.setGravity(Gravity.CENTER); 

    LinearLayout container1 = new LinearLayout(this); 
    container1.setOrientation(LinearLayout.HORIZONTAL); 
    container1.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); 
    container1.setGravity(Gravity.CENTER); 
    container1.setWeightSum(2); 

    LinearLayout container2 = new LinearLayout(this); 
    container2.setOrientation(LinearLayout.HORIZONTAL); 
    container2.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); 
    container2.setGravity(Gravity.CENTER); 
    container2.setWeightSum(1); 

    LinearLayout container3 = new LinearLayout(this); 
    container3.setOrientation(LinearLayout.HORIZONTAL); 
    container3.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); 
    container3.setGravity(Gravity.CENTER); 
    container3.setWeightSum(1); 

    TextView offerTitle = new TextView(this); 
    offerTitle.setText(pOfferTitle); 
    offerTitle.setTextSize(14); 
    //offerTitle.setPadding(10, 0, 10, 0); 
    offerTitle.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1)); 

    Button redeemButton = new Button(this); 
    redeemButton.setText("Usar"); 
    redeemButton.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1)); 
    //redeemButton.setPadding(10, 0, 10, 0); 
    redeemButton.setTextSize(14); 

    container1.addView(offerTitle); 
    container1.addView(redeemButton); 

    TextView mAddress = new TextView(this); 
    mAddress.setText(pAddress); 
    mAddress.setTextSize(14); 
    //mAddress.setPadding(10, 0, 10, 0); 
    mAddress.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1)); 

    container2.addView(mAddress); 

    TextView expiryDate = new TextView(this); 
    expiryDate.setText(pExpiryDate); 
    expiryDate.setTextSize(14); 
    //expiryDate.setPadding(10, 0, 10, 0); 
    offerTitle.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0.6f)); 

    Button detailsButton = new Button(this); 
    detailsButton.setText("Detalhes"); 
    detailsButton.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0.4f)); 
    //detailsButton.setPadding(30, 0, 0, 0); 
    detailsButton.setTextSize(14); 

    container3.addView(expiryDate); 
    container3.addView(detailsButton); 

    containerMain.addView(container1); 
    containerMain.addView(container2); 
    containerMain.addView(container3); 

    ll.addView(containerMain); 

感谢您的时间！ Felipe

Answer 1

我认为更好的方法是使用ListView。
在那里你可以像你想要的那样定义每一行。您也可以在运行时添加或删除行。
当您想要在运行时向其添加元素时，ScrollView会轻松折叠。