如何在布局中的行上放置动态创建的按钮？

我想添加一个for循环的24个按钮。我试图在每行放置四个大小相同的按钮，并希望看到下一个四个按钮出现在它们下面。如何在布局中的行上放置动态创建的按钮？

我该如何做到这一点？

我不工作的努力，到目前为止是这样的：

public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     ScrollView sv = new ScrollView(this); 
     LinearLayout layout = new LinearLayout(this); 
     LinearLayout.LayoutParams params = new LinearLayout.LayoutParams 
        (LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 
     layout.setWeightSum(12.0f); 
     params.weight = 3.0f; 
     layout.setOrientation(LinearLayout.HORIZONTAL); 
     sv.addView(layout); 
     for (int i = 0; i < 24; i++) { 
      Button btn = new Button(this); 
      btn.setText("Button"); 
      btn.setLayoutParams(params); 
      layout.addView(btn); 
     } 
     this.setContentView(sv); 
    }

赞赏任何帮助。

来源

2012-07-18 budwiser

为什么d不要使用自定义列表视图吗？我认为这会比尝试使用24个按钮更好！ – pixelscreen 2012-07-18 11:29:53

可能24个项目的事件侦听器比1个列表事件侦听器慢？ – 2012-07-18 11:31:48

使用网格布局，而不是LinearLayout .... – 2012-07-18 11:32:14

重量这是你如何添加Buttons像你想：

layout.setOrientation(LinearLayout.VERTICAL); 
    sv.addView(layout); 
    for (int i = 0; i < 6; i++) { 
     Linearlayout row = new LinearLayout(this); 
     row.setLayoutParams(new LinearLayout.LayoutParams 
        (LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));  
     for (int j = 0; j < 4; j++) { 
       Button btn = new Button(this); 
       LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams 
        (LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 
       lp.weight = 1; 
       btn.setLayoutParams(lp); 
       btn.setText("Button"); 
       btn.setLayoutParams(params); 
       row.addView(btn); 
     } 
     layout.addView(row); 
    } 
    this.setContentView(sv);

来源

2012-07-18 11:34:37 Luksprog

谢谢。这正是我的意思。 – budwiser 2012-07-18 11:53:15

如何为每一行添加垂直LinearLayout？定义布局的大小，给每个按钮的1

来源

2012-07-18 11:32:54 Kostronor

尝试之后，就把它当作基本的演示：

public class ABCActivity extends Activity { 
int myid = 2001; 

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    RelativeLayout scrollHolder = new RelativeLayout(this); 
    scrollHolder.setId(++myid); 
    RelativeLayout.LayoutParams scrollHolderParams = new RelativeLayout.LayoutParams(
      LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT); 
    scrollHolder.setLayoutParams(scrollHolderParams); 
    scrollHolder.setBackgroundColor(Color.DKGRAY); 
    scrollHolder.setGravity(Gravity.CENTER_VERTICAL); 

    // ScrollView 
    ScrollView scroll = new ScrollView(this); 
    scroll.setId(++myid); 
    scroll.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, 
      LayoutParams.WRAP_CONTENT)); 
    scroll.setBackgroundColor(Color.GREEN); 

    // RelativeLayout 
    RelativeLayout etHolder = new RelativeLayout(this); 
    etHolder.setId(++myid); 
    RelativeLayout.LayoutParams etHolderParams = new RelativeLayout.LayoutParams(
      LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 
    etHolder.setLayoutParams(etHolderParams); 
    etHolder.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL); 
    etHolder.setPadding(0, 0, 0, 25); 

    // Creating EditTextes and Adding to etHolder AS you have done 
    RelativeLayout rl2 = addEditText(etHolder, null, 1); 
    RelativeLayout rl3 = addEditText(etHolder, rl2, 2); 
    RelativeLayout rl4 = addEditText(etHolder, rl3, 3); 
    RelativeLayout rl5 = addEditText(etHolder, rl4, 4); 
    RelativeLayout rl6 = addEditText(etHolder, rl5, 5); 
    RelativeLayout rl7 = addEditText(etHolder, rl6, 6); 
    RelativeLayout rl8 = addEditText(etHolder, rl7, 7); 
    RelativeLayout rl9 = addEditText(etHolder, rl8, 8); 
    RelativeLayout rl10 = addEditText(etHolder, rl9, 9); 
    RelativeLayout rl11 = addEditText(etHolder, rl10, 10); 
    RelativeLayout rl12 = addEditText(etHolder, rl11, 11); 
    RelativeLayout rl13 = addEditText(etHolder, rl12, 12); 

    scroll.addView(etHolder); // adding RelativeLayout = etHolder to ScrollView = scroll 

    scrollHolder.addView(scroll); // adding ScrollView = scroll to RelativeLayout = scrollHolder 

    setContentView(scrollHolder); 

} 

// Method as you have done 
private RelativeLayout addEditText(RelativeLayout objRLContent, 
     RelativeLayout layoutAbove, int i) { 

    RelativeLayout objRLEditText = new RelativeLayout(this); 
    objRLEditText.setId(1100 + i); 
    RelativeLayout.LayoutParams objRLEditTextParams = new RelativeLayout.LayoutParams(
      LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 
    if (layoutAbove != null) 
     objRLEditTextParams.addRule(RelativeLayout.BELOW, 
       layoutAbove.getId()); 
    objRLEditText.setLayoutParams(objRLEditTextParams); 
    objRLEditText.setPadding(8, 2, 8, 2); 

    Button objBtn = new Button(this); 
    objBtn.setId(1300 + i); 
    RelativeLayout.LayoutParams objETDataParams = new RelativeLayout.LayoutParams(
      200, LayoutParams.WRAP_CONTENT); 
    objBtn.setLayoutParams(objETDataParams); 
    objBtn.setPadding(8, 0, 8, 0); 
    objBtn.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 18); 
    objBtn.setText("" + i); 
    objBtn.setSingleLine(true); 
    objRLEditText.addView(objBtn); 
    objRLContent.addView(objRLEditText); 

    return objRLEditText; 

} 
}

来源

2012-07-18 11:40:58

您可以使用表格布局或网格布局

TableLayout table = (TableLayout)findViewById(R.id.the_table); 

    for(int j=0;j<3;j++){ 
     TableRow row = new TableRow(this); 

     for (int i=0; i<4;i++){ 
       final Button Button = new Button(this); 
       Button.setTag(row.getTag()); 
       Button.setText("x"); 
       Button.setWidth(30); 
       Button.setHeight(10); 
       row_UE.addView(Button); 
     } 
    }

来源

2012-07-18 12:00:17

如何在布局中的行上放置动态创建的按钮？

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