Question

我在IB中创建了一个TextView ...我想写两个“段落”，这似乎有用，除了第二个写覆盖第一个。

我该如何解决这个问题？

首先写：

resultText.text =[NSString stringWithFormat:@"Decode Data:  %@, \n%@\n\n",symbol.data, symbol.typeName];  //  display it...

第二次写：

    resultText.text = [NSString stringWithFormat:@"\nDatabase: \n%@ \n%@ \n%@", 
        [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 0)],
        [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 1)],
        [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)]];

Answer 1

在我看来，你只是将文本分配两次，而不是附加。解决这个问题的简单方法是将第二次写入更改为：

resultText.text = [NSString stringWithFormat:@"%@\nDatabase: \n%@ \n%@ \n%@", 
    resultText.text,
    [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 0)],
    [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 1)],
    [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)]];

这将保留您之前的文字。

编辑：

resultText.text =[NSString stringWithFormat:@"Decode Data:  %@, %@",symbol.data, symbol.typeName];

resultText.text = [NSString stringWithFormat:@"%@\nDatabase: %@, %@, %@", 
    resultText.text,
    [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 0)],
    [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 1)],
    [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)]];

写入TextView覆盖以前的写入

1 个答案: