下面是一个使用Android Q从相册获取图片并进行处理的解决方法,包含代码示例:
在build.gradle文件中添加以下依赖:
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'androidx.core:core-ktx:1.3.2'
implementation 'com.github.bumptech.glide:glide:4.11.0'
implementation 'com.github.bumptech.glide:compiler:4.11.0'
import android.app.Activity
import android.content.ContentResolver
import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import android.os.Build
import android.provider.MediaStore
import android.webkit.MimeTypeMap
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import androidx.fragment.app.Fragment
object ImagePickerUtils {
private const val REQUEST_PICK_IMAGE = 100
private var onImagePickedListener: ((Uri?) -> Unit)? = null
fun pickImage(activity: Activity, pickImageListener: (Uri?) -> Unit) {
onImagePickedListener = pickImageListener
val intent = Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
activity.startActivityForResult(intent, REQUEST_PICK_IMAGE)
}
fun pickImage(fragment: Fragment, pickImageListener: (Uri?) -> Unit) {
onImagePickedListener = pickImageListener
val intent = Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
fragment.startActivityForResult(intent, REQUEST_PICK_IMAGE)
}
fun handleActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
if (requestCode == REQUEST_PICK_IMAGE && resultCode == Activity.RESULT_OK) {
val selectedImage = data?.data
onImagePickedListener?.invoke(selectedImage)
} else {
onImagePickedListener?.invoke(null)
}
onImagePickedListener = null
}
}
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.ImageView
import com.bumptech.glide.Glide
class MainActivity : AppCompatActivity() {
private lateinit var imageView: ImageView
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
imageView = findViewById(R.id.image_view)
val pickImageButton: Button = findViewById(R.id.pick_image_button)
pickImageButton.setOnClickListener {
ImagePickerUtils.pickImage(this) { uri ->
// 处理选择的图片
uri?.let {
Glide.with(this)
.load(it)
.into(imageView)
}
}
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
ImagePickerUtils.handleActivityResult(requestCode, resultCode, data)
}
}
这是一个简单的示例,展示了如何使用Android Q从相册获取图片并使用Glide库将其显示在ImageView中。你可以根据自己的需求进行修改和扩展。