将字符串数组传递给另一个活动以与 ion 一起使用

Question

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，我会获取row 上的数据，例如TextView 并显示它在活动中使用Intent

发件人活动

// 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);

接收者活动

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，我想使用ion 库在带有文本的活动中显示该图像，所以我有Array 的String 命名thumbUrl 包含我想在row 和activity 中显示的urls。

发送者活动中的离子

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Bundle 和Intent 像这样发送thumbUrl Array：

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：

受体活动中的离子

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);

但它给了我这个例外

 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.access$900(ActivityThread.java:154)
        at android.app.ActivityThread$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？

抱歉，我只是一个初学者，这是我第一次处理这样的应用程序。

Answer 1

您应该传递与被单击的行相关的图像的 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);