Question

我试图通过意图打开相机，并将生成的图像存储为位图。然后，在Google地图中点击标记时，我想将此位图传递到另一个布局，该布局将用于填充主要活动布局中的弹出窗口。

然而，我收到错误：＆＃34; java.lang.NullPointerException：尝试调用虚方法＆＃39; void android.widget.ImageView.setImageBitmap（android.graphics.Bitmap）＆＃39;在null对象引用＆＃34;

以下是我的部分代码：

MainActivity：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    // if the action was to capture a picture, then store all relevant data in the database
    if (requestCode == 1) {
        if (resultCode == RESULT_OK) {
            Toast.makeText(this, "Picture Received"/*data.getData().toString()*/, Toast.LENGTH_SHORT).show();

            Bundle extras = data.getExtras();
            imageBitmap = (Bitmap) extras.get("data");
            //imageView.setImageBitmap(imageBitmap);
        }
    }
}


@Override
public boolean onMarkerClick(Marker marker) {

    layoutInflator = (LayoutInflater) getApplicationContext().getSystemService(LAYOUT_INFLATER_SERVICE);
    ViewGroup container = (ViewGroup) layoutInflator.inflate(R.layout.imagecontainer, null);

    ImageView image = (ImageView) findViewById(R.id.imageView);
    image.setImageBitmap(imageBitmap);

    popUpWindow = new PopupWindow(container, 800, 1220, true);
    popUpWindow.setBackgroundDrawable(new BitmapDrawable());
    popUpWindow.setOutsideTouchable(true);
    popUpWindow.showAtLocation(relativeLayout, Gravity.CENTER, Gravity.CENTER_HORIZONTAL, Gravity.CENTER_VERTICAL);

    return false;
}

imagecontainer.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FFFFFF"
    android:id="@+id/imageContainer">

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/imageView"
        android:layout_gravity="top|center_horizontal" />
</LinearLayout>

Answer 1

你的意思是（错过了容器？）：

List<String> stores = new List<String>();
stores.Add("s27");
stores.Add("s3");
stores.Add("s5");
stores.Add("s1");

var sorted = stores.OrderBy(s => int.Parse(s.Substring(1)));

在Layoutinflator容器中将ImageView设置为位图

1 个答案: