android - 按钮 setOnClickListener on for 循环

Question

我有 10 个按钮，我想为所有按钮设置 OnClickListener。此外，单击任何按钮应用程序将进行另一项 Activity 。我只在 Activity 类上发布按钮的定义。我的代码；

Button button1 = (Button) findViewById(R.id.button1);
Button button2 = (Button) findViewById(R.id.button2);
Button button3 = (Button) findViewById(R.id.button3);
Button button4 = (Button) findViewById(R.id.button4);
Button button5 = (Button) findViewById(R.id.button5);
Button button6 = (Button) findViewById(R.id.button6);
Button button7 = (Button) findViewById(R.id.button7);
Button button8 = (Button) findViewById(R.id.button8);
Button button9 = (Button) findViewById(R.id.button9);
Button button10 = (Button) findViewById(R.id.button10);
Button buttons[] = {button1, button2, button3, button4, button5, button6, button7, button8, button9, button10};
final String urlOfButtons[] = {"","","","","","","","","","",""};
final String titles[] = {"","","","","","","","","","",""};

JsonNode itemNode = jsonNode.path("Docs");
for(int i=0 ; i<itemNode.size() ; i++){
    titles[i] = itemNode.get(i).path("Text").asText();
            title = titles[i];
    buttons[i].setText(title);
    urlOfButtons[i] = itemNode.get(i).path("Link").asText();
            url = urlOfButtons[i];
    buttons[i].setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent intent = new Intent(HouseDetail.this, HouseDetailPdf.class);
            intent.putExtra("title", title);
            intent.putExtra("url", url);
            startActivity(intent);
        }
    });
}

这通常只采用 title 和 url 的最后一个值。字符串 url，标题定义在类之上。我单击相同值的每个按钮都会转到其他 Activity 。我想要 10 个不同的值来添加额外的值。所以我想添加而不是标题和网址； titles[i] 和 url[i] 作为额外的。我希望我很清楚。

Answer 1

您可以将title 和url 设置为每个按钮的标签

buttons[i].setTag(1, title);
buttons[i].setTag(2, url);

并在 onClick 中检索标签

@Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent intent = new Intent(HouseDetail.this, HouseDetailPdf.class);
            intent.putExtra("title", v.getTag(1));
            intent.putExtra("url", v.getTag(2));
            startActivity(intent);
        }

否则你可以这样做。将 index 存储为标签，以便在 button 按下时可以获取 index点击。

buttons[i].setTag(i);

获取存储为标签的index。

@Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
             int position = Integer.parseInt(v.getTag().toString());
            Intent intent = new Intent(HouseDetail.this, HouseDetailPdf.class);
            intent.putExtra("title", titles[position]);
            intent.putExtra("url", urlOfButtons[position]);
            startActivity(intent);
        }