Question

我使用此功能创建了几个按钮：

   private void setlayout(Integer numbers_of_buttons){

    // creating LinearLayout
    LinearLayout linLayout = new LinearLayout(this);

    // creating LayoutParams
    LinearLayout.LayoutParams linLayoutParam = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);

    // set LinearLayout as a root element of the screen
    setContentView(linLayout, linLayoutParam);

    RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    Button[] butArray = new Button[numbers_of_buttons];

    for (int i = 0; i <  numbers_of_buttons; i++)
    {

        butArray[i] = new Button(this);
        butArray[i].setLayoutParams(params);

        RelativeLayout.LayoutParams Btnparams = (RelativeLayout.LayoutParams) butArray[i].getLayoutParams();
        butArray[i].setText("i ... " + i);
        butArray[i].setId(i); // Setting the ids

        butArray[i].setCompoundDrawablesWithIntrinsicBounds(0, R.mipmap.ic_launcher, 0, 0);
        butArray[i].setBackgroundColor(Color.TRANSPARENT);
        if (i != 0) {

            Btnparams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, butArray[i -1].getId());
        }


        butArray[i].setOnClickListener(listener);

        linLayout.addView(butArray[i], Btnparams);



    }



}

当我在NavigationDrawer中单击某些内容时调用了这个参数：numbers_of_buttons是通过在sqlite数据库中完成的某些查询来检索的。

我唯一的问题是，如果numbers_of_buttons是＆gt; 7即（25）我只能看到其中的7个。这是因为我的scrren宽度是720像素（Nexus7）。

那我该怎么办呢？我的想法是 - 计算屏幕的宽度

            DisplayMetrics metrics = new DisplayMetrics();
            getWindowManager().getDefaultDisplay().getMetrics(metrics);
            System.out.println("DisplayWidth -> " + metrics.widthPixels);

如果最后一个按钮创建的getLeft（）是＆gt;屏幕宽度比转到下一行。

无法找到第二种伪代码的方法。

编辑 - 1

 private void setlayout(Integer numbers_of_buttons){


    FlowLayout flowLayout = new FlowLayout(this);

    setContentView(flowLayout);


    Button[] butArray = new Button[numbers_of_buttons];

    for (int i = 0; i <  numbers_of_buttons; i++)
    {

        butArray[i] = new Button(this);
        butArray[i].setText("i ... " + i);
        butArray[i].setId(i);

        butArray[i].setCompoundDrawablesWithIntrinsicBounds(0, R.mipmap.ic_launcher, 0, 0);
        butArray[i].setBackgroundColor(Color.TRANSPARENT);

        butArray[i].setOnClickListener(listener);

        flowLayout.addView(butArray[i]);

    }

Android dispose对象创建的运行时

0 个答案: