时间戳

首页 > 解决方案 > 设置两个单独的图像视图的图像

java - 设置两个单独的图像视图的图像

问题描述

我的应用程序中有两个 imageView，我有两个按钮。每个 Button 将使用 Gallery Picker 更改其中一个 ImageView。

但是我不知道如何分别为每个 imageViews 选择图像。

用户界面图片

    lateinit var frontImageView: ImageView
    lateinit var backImageView: ImageView

    private val pickImage = 100
    private var imageUri: Uri? = null
...
   override fun onCreate(savedInstanceState: Bundle?) {
        frontImageView = findViewById(R.id.cb_image_frontside)
        backImageView = findViewById(R.id.cb_image_backside)

}


    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        if (resultCode == RESULT_OK && requestCode == pickImage) {
            imageUri = data?.data

            frontImageView.setImageURI(imageUri) // This will just change the image for "frontImageView"
                                                 // But I can only always have one of the 
                                                 // imageViews changed at one time 

                                                 // How can I change the Image of "backImageView" with 
                                                 // the other button?
        }
    }
// This is the fuction for the buttons 
    fun pickMedia(view: View) {
        val gallery = Intent(Intent.ACTION_PICK, MediaStore.Images.Media.INTERNAL_CONTENT_URI)
        startActivityForResult(gallery, pickImage)
    }

标签： javaandroidimagekotlin

解决方案

根据您上面的代码，您可以尝试这样的事情：

    lateinit var frontImageView: ImageView
    lateinit var backImageView: ImageView

    lateinit var frontButton: AppCompatButton
    lateinit var backButton: AppCompatButton

    private val pickFrontImage = 100
    private val pickBackImage = 101
    private var imageUri: Uri? = null
    ...
    override fun onCreate(savedInstanceState: Bundle?) {
        frontImageView = findViewById(R.id.cb_image_frontside)
        backImageView = findViewById(R.id.cb_image_backside)

        frontButton = findViewById(R.id.frontButton)
        backButton = findViewById(R.id.backButton)

        settButtonListeners()

    }

    private fun settButtonListeners() {
        frontButton.setOnClickListener {
           pickMedia(pickFrontImage)
        }

        backButton.setOnClickListener {
            pickMedia(pickBackImage)
        }
    }


    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        if (resultCode == RESULT_OK) {
            imageUri = data?.data

            if (requestCode == pickFrontImage) {
                frontImageView.setImageURI(imageUri) // This will just change the image for "frontImageView"
                // But I can only always have one of the
                // imageViews changed at one time
            } else if (requestCode == pickBackImage) {
                backImageView.setImageURI(imageUri) // This will just change the image for "frontImageView"
                // But I can only always have one of the
                // imageViews changed at one time
            }
        }
    }

    // This is the fuction for the buttons
    fun pickMedia(requestCode: Int) {
        val gallery = Intent(Intent.ACTION_PICK, MediaStore.Images.Media.INTERNAL_CONTENT_URI)
        startActivityForResult(gallery, requestCode)
    }

在pickMedia函数上将请求的代码作为参数传递。

推荐阅读