需要依赖的第三方包
版本为2.3.3的依赖
compile 'com.github.bumptech.glide:glide:4.7.1'
annotationProcessor 'com.github.bumptech.glide:compiler:4.7.1'下面是android 版本3.0以上
repositories {
mavenCentral()
google()
}
dependencies {
implementation 'com.github.bumptech.glide:glide:4.7.1'
annotationProcessor 'com.github.bumptech.glide:compiler:4.7.1'
}
如果还不会就打开连接地址 https://github.com/bumptech/glide
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
protected ImageView iv;
protected Button btn;
protected String item;
private String STR_TAG = "--->***";
private String TAG = this.getClass().getSimpleName();
protected String result;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.activity_main);
initView();
}
private void initView() {
iv = (ImageView) findViewById(R.id.iv);
btn = (Button) findViewById(R.id.btn);
Button btn2 = (Button) findViewById(R.id.btn2);
btn.setOnClickListener(MainActivity.this);
btn2.setOnClickListener(MainActivity.this);
}
@Override
public void onClick(View view) {
if (view.getId() == R.id.btn) {
show();
} else if (view.getId() == R.id.btn2) {
show0();
}
}
private void show0() {
String[] items = {
"0加载图片来自File",
"1加载图片来自资源id",
"2加载图片来自uri",
"3加载强制转化为gif",
"4加载原图的缩略图",
"5加载缩略图高级方式",
"6加载设置不缓存",
"7加载设置优先级",
"8加载回调后的图片",
"9加载回调后的图片设置尺寸",
"10加载图片圆角转换",
"11加载图片圆角转换2",
};
new AlertDialog.Builder(this)
.setTitle("glide操作2")
.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case 0:
selectedA0();
break;
case 1:
selectedA1();
break;
case 2:
selectedA2();
break;
case 3:
selectedA3();
break;
case 4:
selectedA4();
break;
case 5:
selectedA5();
break;
case 6:
selectedA6();
break;
case 7:
selectedA7();
break;
case 8:
selectedA8();
break;
case 9:
selectedA9();
break;
case 10:
selectedA10();
break;
case 11:
selectedA11();
break;
case 12:
break;
}
}
}).create()
.show();
}
private void selectedA11() {
//RoundedCorners,
//CenterInside
Glide.with(this)
.load(UC.IMAGE_URL_A11)
.apply(
new RequestOptions()
.override(300)
.transform(new RoundedCorners(20))
)
.into(iv);
}
private void selectedA10() {
Glide.with(this)
.load(UC.IMAGE_URL_A10)
.apply(new RequestOptions().transform(new GlideRoundTransform(this)))
.into(iv);
}
private void selectedA9() {
//强制Glide返回一个Bitmap
SimpleTarget<Bitmap> target = new SimpleTarget<Bitmap>(300, 300) {
@Override
public void onResourceReady(Bitmap resource, Transition<? super Bitmap> transition) {
iv.setImageBitmap(resource);
}
};
Glide.with(this).asBitmap()
.load(UC.IMAGE_URL_A9)
.into(target
);
}
private void selectedA8() {
//上面这段代码不要写成匿名内部类的机制，原因就是java的自动垃圾回收机制可能在图片还没有加载好的时候就已经把你的Target回收了
//注意.with()里面的参数，Glide的请求是和传进去的Context共存亡的，如果传一个Activity进去，当Activity GG过后，你的请求也就GG了，但是如果这样传：.with(context.getApplicationContext() ).当你的Activity GG过后，请求还是会继续，回调还是会继续。
//强制Glide返回一个Bitmap
SimpleTarget<Bitmap> target = new SimpleTarget<Bitmap>() {
@Override
public void onResourceReady(Bitmap resource, Transition<? super Bitmap> transition) {
iv.setImageBitmap(resource);
}
};
Glide.with(this).asBitmap()
.load(UC.IMAGE_URL_A8)
.into(target
);
}
private void selectedA7() {
Glide.with(this)
.load(UC.IMAGE_URL_A7)
.apply(new RequestOptions().priority(Priority.LOW))
.into(iv);
}
private void selectedA6() {
Glide.with(this)
.load(UC.IMAGE_URL_A6)
.apply(new RequestOptions().skipMemoryCache(true).diskCacheStrategy(DiskCacheStrategy.NONE))
.into(iv);
}
private void selectedA5() {
//先加载第一张图片作为缩略图,在加载最终要显示的图片
//thumbnail中加载的是缩略图
Glide.with(this).load(UC.IMAGE_URL_9)
.thumbnail(Glide.with(this).load(UC.IMAGE_URL_A5)).into(iv);
}
private void selectedA4() {
//先加载为原图的十分之一,后再加载原图.
Glide.with(this)
.load(UC.IMAGE_URL_A4)
.thumbnail(0.1f)
.into(iv);
}
private void selectedA3() {
Glide.with(this).asGif().load(UC.GIF_URL_0).into(iv);
}
private void selectedA2() {
Glide.with(this)
.load(Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "d.jpg")))
.into(iv);
}
private void selectedA1() {
Glide.with(this)
.load(R.mipmap.ic_launcher_round)
.into(iv);
}
private void selectedA0() {
File file = new File(Environment.getExternalStorageDirectory(), "3.jpg");
Glide.with(this).load(file).into(iv);
}
private void show() {
final String[] items = {
"0加载图片一般用法",
"1加载图片成功监听",
"2加载图片失败",
"3加载图片ID占位图",
"4加载图片Drawable占位图",
"5加载图片传入null",
"6加载图片后修改宽高",
"7加载图片后修改宽高等尺寸",
"8加载图片centerCrop",
"9加载图片fitCenter",
"10加载图片centerInside",
"11加载图片circleCrop",
"12加载动态图的第一帧",
"13加载动态图成功",
"14加载本地视频缩略图",
};
new AlertDialog.Builder(this)
.setTitle("glide操作选项")
.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
item = items[which] + STR_TAG;
switch (which) {
case 0:
selected0();
break;
case 1:
selected1();
break;
case 2:
selected2();
break;
case 3:
selected3();
break;
case 4:
selected4();
break;
case 5:
selected5();
break;
case 6:
selected6();
break;
case 7:
selected7();
break;
case 8:
selected8();
break;
case 9:
selected9();
break;
case 10:
selected10();
break;
case 11:
selected11();
break;
case 12:
selected12();
break;
case 13:
selected13();
break;
case 14:
selected14();
break;
}
}
}).create()
.show();
}
private void selected14() {
//缩略图的加载
String name = "v.f40.mp4";
Glide.with(this).load(Uri.fromFile(new File(Environment.getExternalStorageDirectory(), name)))
.into(iv);
}
private void selected13() {
//GIF加载，URL指向的资源必须是gif，如果是普通图片则不显示。
//相反，如果指向正确但没有执行asGif方法，则只是作为普通图片展示
Glide.with(this).asGif().load(UC.GIF_URL_0).into(iv);
}
private void selected12() {
//可理解为加载动态图的第一帧的Bitmap,比如Gif
Glide.with(this).asBitmap().
load(UC.GIF_URL_0).into(iv);
}
private void selected11() {
Glide.with(this)
.load(UC.IMAGE_URL_11)
.apply(new RequestOptions().circleCrop())
.into(iv);
}
private void selected10() {
Glide.with(this)
.load(UC.IMAGE_URL_10)
.apply(new RequestOptions().centerInside())
.into(iv);
}
private void selected9() {
Glide.with(this)
.load(UC.IMAGE_URL_8)
.apply(new RequestOptions().fitCenter())
.into(iv);
}
private void selected8() {
RequestOptions options = new RequestOptions()
.centerCrop();
Glide.with(this)
.load(UC.IMAGE_URL_9)
.apply(options)
.into(iv);
}
private void selected7() {
RequestOptions options = new RequestOptions().override(300).fitCenter();
Glide.with(this)
.load(UC.IMAGE_URL_1)
.apply(options)
.into(iv);
}
private void selected6() {
RequestOptions options = new RequestOptions().override(400, 400).fitCenter();
Glide.with(this).load(UC.IMAGE_URL_1)
.apply(options)
.into(iv);
}
private void selected5() {
RequestOptions options = new RequestOptions()
.fallback(R.mipmap.ic_launcher)
.diskCacheStrategy(DiskCacheStrategy.NONE);
Glide.with(this)
.load(null)
.apply(options)
.into(iv);
}
private void selected4() {
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.load);
Drawable drawable = new BitmapDrawable(getResources(), bitmap);
RequestOptions options = new RequestOptions().placeholder(drawable);
Glide.with(this)
.load(UC.IMAGE_URL_ERROR)
.apply(options)
.into(iv);
}
private void selected3() {
RequestOptions options = new RequestOptions()
.placeholder(R.mipmap.load)
.error(R.mipmap.fail)
.fallback(R.mipmap.ic_launcher)
.diskCacheStrategy(DiskCacheStrategy.NONE);
Glide.with(this)
.load(UC.IMAGE_URL_ERROR)
.apply(options)
.into(iv);
}
private void selected2() {
Glide.with(this)
.load(UC.IMAGE_URL_ERROR)
.listener(new RequestListener<Drawable>() {
@Override
public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
DemonstrateUtil.showToastResult(MainActivity.this, "onLoadFailed失败");
return false;
}
@Override
public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
DemonstrateUtil.showToastResult(MainActivity.this, "onResourceReady成功");
return false;
}
}).into(iv);
}
private void selected1() {
Glide.with(this)
.load(UC.IMAGE_URL_1)
.listener(new RequestListener<Drawable>() {
@Override
public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
DemonstrateUtil.showToastResult(MainActivity.this, "onLoadFailed加载失败!");
return false;
}
@Override
public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
DemonstrateUtil.showToastResult(MainActivity.this, "onResourceReady加载成功!");
return false;
}
})
.into(iv);
}
private void selected0() {
//默认使用原图加载,内存缓存,磁盘缓存,
Glide.with(this).load(UC.IMAGE_URL_0).into(iv);
}
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