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Infernal
Asked:2020-10-10 00:54:30 +0800 CST2020-10-10 00:54:30 +0800 CST

如何输出随机字符串？

  • 772

例如，如何在动画停止后显示一条随机线？目前我已经实现了这样的：

    @Override
    public void onAnimationEnd(Animation animation) {
        //вывод текст здесь
        String[] texts = {};
        Set<Integer> generated = new HashSet<Integer>();
        Random random = new Random ();
        int pos = random.nextInt(texts.length);

        ((TextView) findViewById(R.id.myTextView)).setText(texts[pos]);
    }

    @Override
    public void onAnimationRepeat(Animation animation) {

    }
});

但问题是，一来有String[] texts = {раз, два, ......, тысяча};一千多个值，二来，我想把所有的东西都存储在字符串中，因为未来计划针对不同语言进行本地化。

@Override
            public void onAnimationEnd(Animation animation) {
                //вывод текст здесь

                Resources res = getResources();
                String[] planets = res.getStringArray(R.array.planets_array);

                Set<Integer> generated = new HashSet<Integer>();
                Random random = new Random ();
                int pos = random.nextInt(R.array.planets_array);

                ((TextView) findViewById(R.id.myTextView)).setText(planets[pos]);



            }

            @Override
            public void onAnimationRepeat(Animation animation) {

            }
        });

    }

    }

CatLog 输出以下内容：

-09 23:03:08.846 3579-3579/ru.infernal93.butilochka E/AndroidRuntime: FATAL EXCEPTION: main
                                                                        Process: ru.infernal93.butilochka, PID: 3579
                                                                        java.lang.ArrayIndexOutOfBoundsException: length=4; index=2122146214
                                                                            at ru.infernal93.butilochka.ActivityGame$2.onAnimationEnd(ActivityGame.java:81)
                                                                            at android.view.animation.Animation$3.run(Animation.java:376)
                                                                            at android.os.Handler.handleCallback(Handler.java:742)
                                                                            at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                            at android.os.Looper.loop(Looper.java:154)
                                                                            at android.app.ActivityThread.main(ActivityThread.java:5527)
                                                                            at java.lang.reflect.Method.invoke(Native Method)
                                                                            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
                                                                            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:629)
10-09 23:03:08.848 3579-3579/ru.infernal93.butilochka E/MQSEventManagerDelegate: failed to get MQSService.
java

1 个回答

  1. Best Answer

    资源可以存储数组

    <resources>
    <string-array name="planets_array">
        <item>Mercury</item>
        <item>Venus</item>
        <item>Earth</item>
        <item>Mars</item>
    </string-array>
</resources>

    Resources res = getResources();
String[] planets = res.getStringArray(R.array.planets_array);
    • 8

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