Question

您好我在ArrayList设置值现在我如何将这些值存储在不同的textview中。

例如：

ArrayList<String> mylist =new ArrayList<String>();
for(int i=0;i<mylist.size();i++)
{
    //Here mylist contains 10 values and I have 10 different textviews. Now How can i add values 1 to 10 in different textview. set value to First textview 1,second textview to 2 etc.
}

请帮我找到这个。

Answer 1

这就是::

TextView []tv=new TextView[10];
tv[0]=(TextView)findViewById(R.id.____);
tv[1]=(TextView)findViewById(R.id.____);
tv[2]=(TextView)findViewById(R.id.____);
tv[3]=(TextView)findViewById(R.id.____);
tv[4]=(TextView)findViewById(R.id.____);
tv[5]=(TextView)findViewById(R.id.____);
tv[6]=(TextView)findViewById(R.id.____);
tv[7]=(TextView)findViewById(R.id.____);
tv[8]=(TextView)findViewById(R.id.____);
tv[9]=(TextView)findViewById(R.id.____);

for(int i=0;i<mylist.size();i++)
{
  tv[i].setText(mylist.get(i));
}

Answer 2

LinearLayout layout = (LinearLayout) findViewById(R.id.linearLayout1);

            ArrayList<String> mylist = new ArrayList<String>();
            mylist.add("1");
            mylist.add("2");
            mylist.add("3");
            mylist.add("4");
            LayoutParams lparams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
            for (int i = 0; i < mylist.size(); i++) 
            {
                TextView tv = new TextView(this);
                tv.setLayoutParams(lparams);
                tv.setText(mylist.get(i));
                layout.addView(tv);
            }

和XML文件

<LinearLayout
        android:id="@+id/linearLayout1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
    </LinearLayout>

Answer 3

如果你有相同的no文本视图，然后数据创建一个视图数组，那么使用for循环：

      ArrayList<String> mylist =new ArrayList<String>();
        mylist.add("1st");
        mylist.add("2nd");
        mylist.add("3rd");
        mylist.add("4th");
//        mylist.add("5th");
        one=(TextView)findViewById(R.id.textView1);
        two=(TextView)findViewById(R.id.textView2);
        three=(TextView)findViewById(R.id.textView3);
        four=(TextView)findViewById(R.id.textView4);
        ArrayList<TextView>text=new ArrayList<TextView>(Arrays.asList(one,two,three,four));


        for(int i=0;i<mylist.size();i++)
        {
            text.get(i).setText(mylist.get(i));
            //Here mylist contains 10 values and I have 10 different textviews. Now How can i add values 1 to 10 in different textview. set value to First textview 1,second textview to 2 etc.
        }

Answer 4

你不需要在这里循环

你需要调用textView.setText(mylist.get(0)); ...你需要在get方法中增加值，并使用diff文本视图实例调用它10次。

编辑：与您的评论相同：此处假设您已创建

TextView [] tv; // you need to initialized array here with textviews
ArrayList<String> mylist =new ArrayList<String>();
for(int i=0;i<mylist.size();i++)
{

tv[i].setText(mylist.get(i));
   }

Answer 5

然后你不需要for循环。只需手动将文本设置为您的文本视图

as

ArrayList<String> mylist =new ArrayList<String>();
TextView txt1 = (TextView)findviewbyId(R.id.txt1);
txt1.setText(mylist.get(0);

....//upto 10 textViews

TextView txt10 = (TextView)findviewbyId(R.id.txt10);
txt10.setText(mylist.get(9);

Answer 6

您可以尝试这样的事情：

for(int i=0;i<mylist.size();i++)
{
    TextView tv = findViewById(getResources().getIdentifier("textView"+i, "id",getPackageName())); 
    tv.setText(mylist.get(i));
}

我不确定你是不是想做。我使用getIdentifier方法来检索textViews。否则，您可以循环扩展textView：

for(int i=0;i<mylist.size();i++)
{
    TextView tv = (TextView)LayoutInflater.from(context).inflate(R.layout.myTextView, null); 
    tv.setText(mylist.get(i));
}

希望这会对你有所帮助

Answer 7

for(int i=0;i<mylist.size();i++)
{
  tv[i].setText(mylist.get(i));
}

将arraylist值存储到不同的textview

7 个答案: