[英]Set Random Text To Multiple TextView Without Any Repetition
Hello Guys I am New to Android. 大家好,我是Android新手。 I am developing an App but stuck here.
我正在开发一个应用程序,但停留在这里。 I want to set Random Text to TextView and I did it successfully but I am getting same text on all textview I put it.
我想将“随机文本”设置为TextView并成功完成,但是我在放置的所有textview上都得到了相同的文本。 I want if the text set to one textview should not be show to other means its should not be repeat.
我想如果设置为一个textview的文本不应显示为其他意思,则不应重复显示。 Any help must be appreciated.
任何帮助都必须感谢。 I am posting some code here.
我在这里发布一些代码。
int[] array_set_up_text;
Random rand_set_up_text;
rand_set_up_text = new Random();
array_set_up_text = new int[] { R.string.set_up_text1, R.string.set_up_text2, R.string.set_up_text3,
R.string.set_up_text4, R.string.set_up_text5, R.string.set_up_text6, R.string.set_up_text7,
R.string.set_up_text8,R.string.set_up_text9,R.string.set_up_text10,R.string.set_up_text11,R.string.set_up_text12};
rand_text_set_up = rand_set_up_text.nextInt(array_set_up_text.length - 1);
text1.setText(array_set_up_text[rand_text_set_up]);
text2.setText(array_set_up_text[rand_text_set_up]);
text3.setText(array_set_up_text[rand_text_set_up]);
change your code to: 将您的代码更改为:
text1.setText(array_set_up_text[rand_set_up_text.nextInt(array_set_up_text.length)]);
text2.setText(array_set_up_text[rand_set_up_text.nextInt(array_set_up_text.length)]);
text3.setText(array_set_up_text[rand_set_up_text.nextInt(array_set_up_text.length)]);
You need to recall the nextInt() method each time: 您每次都需要调用nextInt()方法:
text1.setText(array_set_up_text[rand_text_set_up]);
rand_set_up_text.nextInt()
text2.setText(array_set_up_text[rand_text_set_up]);
rand_set_up_text.nextInt()
text3.setText(array_set_up_text[rand_text_set_up]);
Your problem is this line 你的问题是这条线
rand_text_set_up = rand_set_up_text.nextInt(array_set_up_text.length - 1);
You get a random position once, then don't update it. 您一次获得一个随机位置,然后不更新它。
Easiest solution is to do something like below 最简单的解决方案是执行以下操作
rand_text_set_up = rand_set_up_text.nextInt(array_set_up_text.length - 1);
text2.setText(array_set_up_text[rand_text_set_up]);
//Get a new random position.
rand_text_set_up = rand_set_up_text.nextInt(array_set_up_text.length - 1);
text3.setText(array_set_up_text[rand_text_set_up]);
//Get a new random position.
rand_text_set_up = rand_set_up_text.nextInt(array_set_up_text.length - 1);
text3.setText(array_set_up_text[rand_text_set_up]);
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