Question

我正在尝试使用相机意图拍摄照片，将图像保存在SD卡中，通过按钮单击方法保存共享首选项中的文件路径在另一个活动中显示相同的图像，但图像不会显示。

这是我的代码

拍摄照片布局：

<RelativeLayout
    android:id="@+id/relativeLayout2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

    <ImageView
        android:id="@+id/image1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:src="@drawable/ic_launcher" />

    <LinearLayout
        android:id="@+id/linearLayout1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:orientation="vertical" >

        <Button
            android:id="@+id/remove1"
            style="@style/SmallButtonText"
            android:background="@drawable/loginbutton"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/btn_remove" />

        <Button
            android:id="@+id/take1"
            style="@style/SmallButtonText"
            android:background="@drawable/loginbutton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/btn_take" />
    </LinearLayout>
</RelativeLayout>

拍照码：

Intent intent1 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
imageName1 = "image"+String.valueOf(System.currentTimeMillis()) + ".jpg"; 
File file = new File(Environment.getExternalStorageDirectory(),"/new/images/"+     imageName1);
intent1.putExtra(MediaStore.EXTRA_OUTPUT, imageUri1);
imageUri1 = Uri.fromFile(file)       
startActivityForResult(intent1, IMAGE_CAPTURE);

protected void onActivityResult(int requestCode, int resultCode, Intent data) 
{
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK) {
        if(requestCode == IMAGE_CAPTURE)
        {
            Bundle b = data.getExtras(); 
            Bitmap pic = (Bitmap)b.get("data");
            if (pic != null) {
                pictureHolder1.setImageBitmap(pic);
            }
        }
    }
}

onbtnclick()
{
    SharedPreferences image1Pref = getSharedPreferences("images",MODE_PRIVATE);
    Editor et=image1Pref.edit();
    et.putString("image1",imageName1);
    et.commit();
}

anotheractivitylayout：

<ImageView
 android:id="@+id/pic1"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:src="@drawable/ic_launcher" />

活动代码：

SharedPreferences image1Pref = getSharedPreferences("images",MODE_PRIVATE);
String picName=image1Pref.getString("image1","");
File piFile1 =new File(Environment.getExternalStorageDirectory(),"/new/images/"+picName);

if(piFile1!=null)
{
    Bitmap bitmap1 = BitmapFactory.decodeFile(piFile1.getAbsolutePath());
    pic1.setImageBitmap(bitmap1);
}

Answer 1

只需将图像设置如下：

 if(piFile1!=null)
  {
      Bitmap bitmap1 = BitmapFactory.decodeFile(piFile1.getPath()); <<<Change this line.
      pic1.setImageBitmap(bitmap1);
  }

图像视图中的Android图像未显示

1 个答案: