Android studio,我想用内置方法“Image”发布一个简单的图像。编译器抛出了我在标题中发布的内容。
我尝试了不同的图像选项和 ImageView 但没有成功。我尝试更改图片的大小及其密度,但也没有帮助。我期待简单的帮助。
今天尝试了 ImageReader 并出现了同样的错误。我以为这会是依赖,但它们很好。我正在使用 @OptIn(ExperimentalFoundationApi::class) 但我认为无论如何都不重要。:(
顺便说一句。这就是我的代码,我正在尝试放大玻璃:https://www.youtube.com/watch?v=rLs-iUWtumE
import android.media.Image
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.ExperimentalFoundationApi
import androidx.compose.foundation.MagnifierStyle
import androidx.compose.foundation.gestures.detectDragGestures
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.magnifier
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Modifier
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.input.pointer.pointerInput
import androidx.compose.ui.res.painterResource
import com.example.lupa.ui.theme.LupaTheme
@OptIn(ExperimentalFoundationApi::class)
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
LupaTheme {
// A surface container using the 'background' color from the theme
Column(
modifier = Modifier
.fillMaxSize()
) {
val image = painterResource(R.drawable.szymonnodpi)
var offset by remember {
mutableStateOf(Offset.Zero)
}
Box(
modifier = Modifier
.fillMaxWidth()
.pointerInput(true) {
detectDragGestures { change, _ ->
offset = change.position
}
}
.magnifier(
sourceCenter = {
offset
},
magnifierCenter = {
offset - Offset(x = 0f, y = 200f)
},
style = MagnifierStyle(
//size = DpSize(100.dp, 200.dp)
)
)
) {
Image(
painter = image,
contentDiscription = null,
modifier = Modifier.fillMaxSize(),
contentScale = ContentScale.FillWidth
)
}
}
}
}
}
}
我也更改了导入导入 androidx.compose.foundation.Image & 现在它抛出其他异常:
不能使用提供的参数调用以下函数: 公共乐趣图像(位图:ImageBitmap,contentDescription:字符串?,修饰符:Modifier = ...,对齐:Alignment = ...,contentScale:ContentScale = ...,alpha:Float = ...,colorFilter:ColorFilter?= ..., filterQuality: FilterQuality = ...): androidx.compose.foundation 中定义的单位 公共乐趣图像(画家:画家,contentDescription:字符串?,修饰符:Modifier = ...,对齐:Alignment = ...,contentScale:ContentScale = ...,alpha:Float = ...,colorFilter:ColorFilter?= ...): androidx.compose.foundation 中定义的单位 公共乐趣图像(imageVector:ImageVector,contentDescription:String?,修饰符:Modifier = ...,对齐:Alignment = ...,contentScale:ContentScale = ...,alpha:Float = ...,colorFilter:ColorFilter?= ...): 在 androidx.compose.foundation 中定义的单位