将字符串数组传递给另一个 activity 以与离子一起使用

Passing Array of Strings to another activity to use with ion

我有 ListView 并且我使用 ion 库在其中的 rows 中加载图像,当我点击任何 row 时,我会在row 喜欢 TextView 并使用 Intent

在 activity 中显示

发件人Activity

// Keys
public static String TITLE = "title";
public static String ARTICLE = "article";
public static String IMG = "img";


Intent passData = new Intent(getContext(), ArticleScreen.class);
       passData.putExtra(TITLE, tv.getText());
       passData.putExtra(ARTICLE, tv2.getText());
       getContext().startActivity(passData);

接收者Activity

Bundle extras = getIntent().getExtras();

    if (extras != null) {

        title = extras.getString(NewsAdapter.TITLE);
        article = extras.getString(NewsAdapter.ARTICLE);

    }

现在我在 ListView 中的每个 row 中都有不同的 ImageView,我想在 activity 中显示该图像,并使用 ion 库,所以我有 StringArray 命名为 thumbUrl 包含我想在 rowactivity 中显示的 urls

发件人中的离子 Activity

ImageView iv = (ImageView) v.findViewById(R.id.mThumb);

    Ion.with(getContext()).load(thumbUrl[position])
            .withBitmap()
            .placeholder(R.drawable.ic_settings_black_24dp)
            .error(R.drawable.ic_info_outline_black_24dp)
            .intoImageView(iv);

所以我尝试使用 BundleIntent 发送 thumbUrl Array,如下所示:

Bundle b = new Bundle();
       b.putStringArray(IMG, thumbUrl);

       Intent passData = new Intent(getContext(), ArticleScreen.class);
       passData.putExtra(TITLE, tv.getText());
       passData.putExtra(ARTICLE, tv2.getText());
       passData.putExtras(b);
       getContext().startActivity(passData);

并像这样接收它:

接收器中的离子 Activity

private String[] img;

Bundle extras = getIntent().getExtras();

    if (extras != null) {

        title = extras.getString(NewsAdapter.TITLE);
        article = extras.getString(NewsAdapter.ARTICLE);
        img = extras.getStringArray(NewsAdapter.IMG);

    }

    ImageView iv = (ImageView) findViewById(R.id.articleImg);

    Ion.with(this).load(Arrays.toString(img))
            .withBitmap()
            .placeholder(R.drawable.ic_settings_black_24dp)
            .error(R.drawable.ic_info_outline_black_24dp)
            .intoImageView(iv);

但它给了我那个例外

 08-20 23:51:23.841  28725-28725/com.mEmoZz.App W/Bundle﹕ Key img expected String[] but value was a java.lang.Integer.  The default value <null> was returned.
 08-20 23:51:23.843  28725-28725/com.mEmoZz.App W/Bundle﹕ Attempt to cast generated internal exception:
java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String[]
        at android.os.BaseBundle.getStringArray(BaseBundle.java:1258)
        at com.mEmoZz.App.ArticleScreen.onCreate(ArticleScreen.java:36)
        at android.app.Activity.performCreate(Activity.java:5990)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2309)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2418)
        at android.app.ActivityThread.access0(ActivityThread.java:154)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:135)
        at android.app.ActivityThread.main(ActivityThread.java:5291)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)

那么现在该怎么办?

对于这个麻烦的问题很抱歉,但我只是一个初学者,这是我第一次处理这样的应用程序。

您应该传递与被点击行相关的图像的 url。不要传递整个数组:

//In the Sender:
passData.putExtra(IMG, thumbUrl[position]);

//In the Receiver
String img = extras.getString(NewsAdapter.IMG);