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[Kotlin]glide 備忘録

Posted at

Gradleに

Gradle
dependencies {
  implementation 'com.github.bumptech.glide:glide:4.12.0'
  annotationProcessor 'com.github.bumptech.glide:compiler:4.12.0'
}

を追加。

MainActivity.kt
class MainActivity : AppCompatActivity() {

    private val image = "https://cdn.pixabay.com/photo/2018/05/03/21/49/android-3372580_960_720.png"

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val imageOne = findViewById<ImageView>(R.id.image_one)
        val imageTwo = findViewById<ImageView>(R.id.image_two)
        val imageThree = findViewById<ImageView>(R.id.image_three)

        Glide.with(this)
                .load(image)
                .into(imageOne)

        Glide.with(this)
                .load(image)
                .fitCenter()
                .circleCrop()
                .diskCacheStrategy(DiskCacheStrategy.ALL)
                .into(imageTwo)

        Glide.with(this)
                .load(image)
                .override(300,400)
                .centerCrop()
                .into(imageThree)
    }
}

こんな感じで書ける。

Glide.with(this)
    .load(image)
    .into(imageOne)

これは単純にimageのURLを読み込んで、その中身をactivity_main.xmlのid:imageOneに入れる処理。

Glide.with(this)
    .load(image)
    .fitCenter()
    .circleCrop()
    .diskCacheStrategy(DiskCacheStrategy.ALL)
    .into(imageTwo)

これはimageOneの処理に加えて、

画像を丸くする処理
画像を真ん中に合わせる処理
全ての解像度のリソースをキャッシュさせる処理
を追加したもの。

Glide.with(this)
    .load(image)
    .override((width)300,(height)400)
    .centerCrop()
    .into(imageThree)

これはimageOneの処理に加えて、画像の処理を追加したもの。
丸みを帯びず、縦長になる感じ。

Glide.with(this)
    .load(image)
    .circleCrop()
    .into(imageThree)

だと画像は丸くなるが、
ここに

.override(width, height)

を書くとcenterCropが無視される?っぽい。

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