Question

怎么提取出arraylist中的第一个元素显示到textview上去

ArrayList matches = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);wordsList.setAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, matches));这个代码该怎么修改?我想提取wordlist中的第一个元素出来，然后显示到textview上去怎么做？

Answer 1

String text = ((TextView)(wordsList.getItemAtPosition(0))).getText();yourTextView.setText(text);String text = matches.get(0).toString();yourTextView.setText(text);

Answer 2

CrabActivity.this.count 就是定义的count 等于 0
CrabActivity.this.al 就是 al
CrabActivity.this.al.get(CrabActivity.this.count))就是
al.get(count) 就是al.get(0)是个String[]类型
拆分下就是
public ArrayList<String[]> al;
int count = 0;
String[] alStrings = al.get(count);
String oneString = alStrings[0];
localTextView2.setText(oneString)。