【移动应用开发技术】Android中如何使用Glide框架

【移动应用开发技术】Android中如何使用Glide框架

加载网络图片compile

'com.android.support:recyclerview-v7:25.0.0'compile

'com.github.bumptech.glide:glide:3.7.0'<?xml

version="1.0"

encoding="utf-8"?><android.support.v7.widget.RecyclerView

xmlns:android="/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:id="@+id/recycler_view"></android.support.v7.widget.RecyclerView><?xml

version="1.0"

encoding="utf-8"?><LinearLayout

xmlns:android="/apk/res/android"

android:orientation="vertical"

android:layout_width="match_parent"

android:layout_height="wrap_content">

<ImageView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:adjustViewBounds="true"

android:id="@+id/image"/></LinearLayout>@Overridepublic

ViewHolder

onCreateViewHolder(ViewGroup

parent,

int

viewType)

{

View

v

=

LayoutInflater.from(mContext).inflate(R.layout.list_item,parent,false);

return

new

ViewHolder(v);

}@Overridepublic

void

onBindViewHolder(ViewHolder

holder,

int

position)

{

final

String

url

=

mItems.get(position);

Log.e("tag","============onBindViewHolder

url:

"+url);

Glide.with(mContext)

.load(url)

.placeholder(R.mipmap.ic_launcher)

.diskCacheStrategy(DiskCacheStrategy.RESULT)

.into(holder.image);

holder.image.setOnClickListener(new

View.OnClickListener(){

@Override

public

void

onClick(View

v)

{

Intent

intent

=

new

Intent();

intent.setClass(mContext,PreviewImageActivity.class);

intent.putExtra("url",url);

mContext.startActivity(intent);

}

});

}@Overridepublic

int

getItemCount()

{

return

mItems.size();

}public

class

ViewHolder

extends

RecyclerView.ViewHolder{

ImageView

image;

public

ViewHolder(View

itemView)

{

super(itemView);

image

=

(ImageView)itemView.findViewById(R.id.image);

}

}@Nullable@Overridepublic

View

onCreateView(LayoutInflater

inflater,

@Nullable

ViewGroup

container,

@Nullable

Bundle

savedInstanceState)

{

View

v

=

inflater.inflate(R.layout.fragment_list,container,false);

mClient

=

new

OkHttpClient();

mReyclerView

=

(RecyclerView)

v.findViewById(R.id.recycler_view);

mReyclerView.setLayoutManager(new

StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL));

mAdapter

=

new

GankAdapter(getActivity(),mUrls);

mReyclerView.setAdapter(mAdapter);

loadApi(index);

mReyclerView.addOnScrollListener(new

RecyclerView.OnScrollListener()

{

@Override

public

void

onScrollStateChanged(RecyclerView

recyclerView,

int

newState)

{

super.onScrollStateChanged(recyclerView,

newState);

}

@Override

public

void

onScrolled(RecyclerView

recyclerView,

int

dx,

int

dy)

{

super.onScrolled(recyclerView,

dx,

dy);

if(isScrollToEnd(mReyclerView)){

Log.e("tag","============scroll

to

end");

index

+=

1;

loadApi(index);

}

}

});

return

v;

}compile

'com.squareup.okhttp3:okhttp:3.4.1'private

void

loadApi(int

page){

Request

request

=

new

Request.Builder().url("http://gank.io/api/data/%E7%A6%8F%E5%88%A9/10/"+page).build();

mClient.newCall(request).enqueue(new

Callback()

{

@Override

public

void

onFailure(Call

call,

IOException

e)

{

Log.e("tag","loading

failure

");

e.printStackTrace();

}

@Override

public

void

onResponse(Call

call,

Response

response)

throws

IOException

{

if(response.isSuccessful()){

String

result

=

response.body().string();

try

{

JSONObject

json

=

new

JSONObject(result);

JSONArray

array

=

new

JSONArray(json.getString("results"));

for(int

i

=

0;i<array.length();i++){

JSONObject

ob

=

array.getJSONObject(i);

mUrls.add(ob.getString("url"));

Log.e("tag","==========

url:

"+ob.getString("url"));

}

mHandler.sendEmptyMessage(2);

}catch

(JSONException

e){

e.printStackTrace();

}

}

}

});

}https://upload-images.jianshu.io/upload_images/3117364-9be6dad47a327291.png?imageMogr2/auto-orient/strip加载本地图片private

void

loadAlbum(){

AsyncTask<Void,

Void,

Void>

asyncTask

=

new

AsyncTask<Void,

Void,

Void>()

{

@Override

protected

Void

doInBackground(Void...

params)

{

Cursor

c

=

getContext().getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,

new

String[]{MediaStore.Images.ImageColumns.DATA},null,null,

MediaStore.Images.ImageColumns.DATE_TAKEN+"

desc

");

if(null

!=

c

&&

c.getCount()

>

0

&&

c.moveToFirst()){

while

(c.moveToNext()){

mData.add(c.getString(c.getColumnIndex(MediaStore.Images.ImageColumns.DATA)));

}

}

return

null;

}

@Override

protected

void

onPostExecute(Void

aVoid)

{

mHandler.sendEmptyMessage(2);

}

};

asyncTask.execute();

}https://upload-images.jianshu.io/upload_images/3117364-e5dae1631f65315e.png?imageMogr2/auto-orient/strip添加图像变换compile

'jp.wasabeef:glide-transformations:2.0.1