【实例简介】功能:拍照,相片裁剪,给图片贴贴纸,打标签

实现相机功能

实现对图片进行裁剪的功能

图片的滤镜功能

能为图片添加贴纸(贴纸可移动,放大,旋转)

能为图片添加标签(同样可以移动)

本地保存制作好的图片,并展示

【实例截图】

【核心代码】

package com.stickercamera.app.ui;

import android.graphics.BitmapFactory;

import android.support.v4.widget.SwipeRefreshLayout;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.support.v7.widget.CardView;

import android.support.v7.widget.LinearLayoutManager;

import android.support.v7.widget.RecyclerView;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.widget.Button;

import android.widget.ImageView;

import android.widget.RelativeLayout;

import android.widget.TextView;

import com.alibaba.fastjson.JSON;

import com.common.util.DataUtils;

import com.common.util.FileUtils;

import com.common.util.StringUtils;

import com.customview.LabelView;

import com.github.skykai.stickercamera.R;

import com.melnykov.fab.FloatingActionButton;

import com.stickercamera.App;

import com.stickercamera.AppConstants;

import com.stickercamera.app.camera.CameraManager;

import com.stickercamera.app.model.FeedItem;

import com.stickercamera.app.model.TagItem;

import com.stickercamera.base.BaseActivity;

import org.json.JSONArray;

import java.util.ArrayList;

import java.util.List;

import butterknife.ButterKnife;

import butterknife.InjectView;

import de.greenrobot.event.EventBus;

/**

* 主界面

* Created by sky on 2015/7/20.

* Weibo: http://weibo.com/2030683111

* Email: 1132234509@qq.com

*/

public class MainActivity extends BaseActivity {

@InjectView(R.id.fab)

FloatingActionButton fab;

@InjectView(R.id.recycler_view)

RecyclerView mRecyclerView;

private List feedList;

private PictureAdapter mAdapter;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

ButterKnife.inject(this);

EventBus.getDefault().register(this);

initView();

//如果没有照片则打开相机

String str = DataUtils.getStringPreferences(App.getApp(), AppConstants.FEED_INFO);

if (StringUtils.isNotEmpty(str)) {

feedList = JSON.parseArray(str, FeedItem.class);

}

if (feedList == null) {

CameraManager.getInst().openCamera(MainActivity.this);

} else {

mAdapter.setList(feedList);

}

}

public void onEventMainThread(FeedItem feedItem) {

if (feedList == null) {

feedList = new ArrayList();

}

feedList.add(0, feedItem);

DataUtils.setStringPreferences(App.getApp(), AppConstants.FEED_INFO, JSON.toJSONString(feedList));

mAdapter.setList(feedList);

mAdapter.notifyDataSetChanged();

}

@Override

protected void onDestroy() {

super.onDestroy();

EventBus.getDefault().unregister(this);

}

private void initView() {

titleBar.hideLeftBtn();

titleBar.hideRightBtn();

mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

mAdapter = new PictureAdapter();

mRecyclerView.setAdapter(mAdapter);

fab.setOnClickListener(v -> CameraManager.getInst().openCamera(MainActivity.this));

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

getMenuInflater().inflate(R.menu.menu_main, menu);

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

int id = item.getItemId();

if (id == R.id.action_settings) {

return true;

}

return super.onOptionsItemSelected(item);

}

//照片适配器

public class PictureAdapter extends RecyclerView.Adapter {

private List items = new ArrayList();

public void setList(List list) {

if (items.size() > 0) {

items.clear();

}

items.addAll(list);

}

@Override

public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_picture, parent, false);

return new ViewHolder(v);

}

@Override

public void onBindViewHolder(ViewHolder holder, int position) {

FeedItem feedItem = items.get(position);

holder.picture.setImageBitmap(BitmapFactory.decodeFile(feedItem.getImgPath()));

holder.setTagList(feedItem.getTagList());

}

@Override

public int getItemCount() {

return items.size();

}

@Override

public void onViewRecycled(ViewHolder holder) {

// 将标签移除,避免回收使用时标签重复

holder.pictureLayout.removeViews(1, holder.pictureLayout.getChildCount() - 1);

super.onViewRecycled(holder);

}

@Override

public void onViewAttachedToWindow(ViewHolder holder) {

super.onViewAttachedToWindow(holder);

// 这里可能有问题 延迟200毫秒加载是为了等pictureLayout已经在屏幕上显示getWidth才为具体的值

holder.pictureLayout.getHandler().postDelayed(new Runnable() {

@Override

public void run() {

for (TagItem feedImageTag : holder.getTagList()) {

LabelView tagview = new LabelView(MainActivity.this);

tagview.init(feedImageTag);

tagview.draw(holder.pictureLayout,

(int) (feedImageTag.getX() * ((double) holder.pictureLayout.getWidth() / (double) 1242)),

(int) (feedImageTag.getY() * ((double) holder.pictureLayout.getWidth() / (double) 1242)),

feedImageTag.isLeft());

}

}

}, 200);

}

}

public static class ViewHolder extends RecyclerView.ViewHolder {

@InjectView(R.id.pictureLayout)

RelativeLayout pictureLayout;

@InjectView(R.id.picture)

ImageView picture;

private List tagList = new ArrayList<>();

public List getTagList() {

return tagList;

}

public void setTagList(List tagList) {

if (this.tagList.size() > 0) {

this.tagList.clear();

}

this.tagList.addAll(tagList);

}

public ViewHolder(View itemView) {

super(itemView);

ButterKnife.inject(this, itemView);

}

}

}