android Glide CustomViewTarget,java

最新推荐文章于 2025-09-26 01:34:39 发布

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该代码示例展示了如何在Android应用中使用Glide库创建一个CustomViewTarget，将图片加载到自定义视图MyView中的ImageView。MyView是LinearLayout的子类，通过LayoutInflater从XML布局加载。Glide的with()方法用于初始化加载请求，将R.mipmap.ic_launcher资源加载到目标视图中。

android Glide CustomViewTarget,java

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.widget.ImageView;

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.target.CustomViewTarget;
import com.bumptech.glide.request.transition.Transition;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        MyView myView = new MyView(this, null);
        setContentView(myView);

        CustomViewTarget target = new CustomViewTarget<MyView, Drawable>(myView) {
            @Override
            public void onLoadFailed(@Nullable Drawable errorDrawable) {

            }

            @Override
            public void onResourceReady(@NonNull Drawable resource, @Nullable Transition<? super Drawable> transition) {
                ImageView iv = myView.findViewById(R.id.image);
                iv.setImageDrawable(resource);
            }

            @Override
            protected void onResourceCleared(@Nullable Drawable placeholder) {

            }
        };

        Glide.with(this).load(R.mipmap.ic_launcher).into(target);
    }
}

my_view.xml:

<?xml version="1.0" encoding="utf-8"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/image"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

MyView.java：

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;


public class MyView extends LinearLayout {
    public MyView(Context context, AttributeSet attrs) {
        super(context, attrs);

        removeAllViews();

        View view = LayoutInflater.from(context).inflate(R.layout.my_view, null);
        addView(view);
    }
}

    implementation 'com.github.bumptech.glide:glide:4.15.0'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.15.0'