android 微信图片浏览,Android微信图片浏览框架设计

2022-10-05 08:44 48阅读 0赞

一、业务场景

1、聊天界面发送图片==>多选点选+有右上角”发送”+图片预览==>图片预览支持右上角”发送”逻辑

2、发表动态==>多选点选+右上角”完成” + 图片预览==>图片预览支持右上角”完成”逻辑

3、个人资料更改头像==>单选点选 + 图片预览截图==>图片预览截图支持右上角”使用”逻辑

二、Intent参数设计; (Intent传参原则:尽量不要使用自定义类型专递参数)

1、最基本的参数传递(可选图片最大数目、右上角的标题、单选模式还是多选模式、返回结果的参数)

/\*\* 最大图片选择次数，int类型，默认9 \*/

public static final String EXTRA\_SELECT\_COUNT = "max\_select\_count";

/\*\* 发送按钮的标题 如完成或发送 \*/

public static final String EXTRA\_SUBMIT\_TITLE = "extra\_submit\_title";

/\*\* 图片选择模式，默认多选 \*/

public static final String EXTRA\_SELECT\_MODE = "select\_count\_mode";

/\*\* 选择结果，返回为 ArrayList 图片路径集合 \*/

public static final String EXTRA\_RESULT = "select\_result";

2、扩展部分参数传递(图片选择界面的第一个Item是否显示拍照功能、预览的activity是否支持”勾选取消结束”勾选按钮)

/\*\* 是否显示相机，默认显示 \*/

public static final String EXTRA\_SHOW\_CAMERA = "show\_camera";

/\*\* 是否跳转到ImageDetailCheckPicsAct上\*/

public static final String EXTRA\_JUMPTOCHECKPICS = "is\_jumpto\_checkpics";

3、在”发表动态选择”已经选了5张图片,再去选择图片–图片浏览器需要将已选的图片勾选状态设置为勾选

/\*\* 默认已被选择集 \*/

public static final String EXTRA\_DEFAULT\_SELECTED\_LIST = "default\_list";

4、截图功能(单选模式下,如果启动截图模式,那么选择后跳转截图界面)

/\*\* 单选是否原图返回或先跳转截图后返回 \*/

public static final String RESIZEBIT = "RESIZEBIT";

/\*\* 截图保存的路径 \*/

public static final String RESULT = "resultPath";

/\*\* 单选 是否截图 \*/

public static final String MODE\_SCALE\_BOOLEAN = "MODE\_SCALE\_BOOLEAN";

/\*\* 单选 截图区域蓝色框的宽;单位dp \*/

public static final String SCALEW = "scaleW";

/\*\* 单选 截图区域蓝色框的高;单位dp \*/

public static final String SCALEH = "SCALEH";

/\*\* 单选 截图后图片保存的像素宽;单位sp \*/

public static final String LIMITW = "limitWidth";

/\*\* 单选 截图后图片保存的像素高;单位sp \*/

public static final String LIMITH = "limitHight";

/\*\* 单选截图的保存的路径 \*/

public static final String MODE\_SCALE\_PATH = "MODE\_SCALE\_PATH";

三、理清楚需求之后进行设计

此处省略;分享的代码实现的功能,尚未设计优化代码可读性较差

代码项目github地址IMAlbum

四、代码使用方法

public static void jumpToSelectPics(Activity mContext, boolean isShowCamera, int selectMaxCount, int selectMode,

String submitBtnStr, boolean isJumpToCheckPics, ArrayList hasSelectList) \{

Intent intent = new Intent(mContext, MultiImageSelectorActivity.class);

// whether show camera

intent.putExtra(MultiImageSelectorActivity.EXTRA\_SHOW\_CAMERA, isShowCamera);

// String of submit button

intent.putExtra(MultiImageSelectorActivity.EXTRA\_SUBMIT\_TITLE, submitBtnStr);

// String of submit button

intent.putExtra(MultiImageSelectorFragment.EXTRA\_JUMPTOCHECKPICS, isJumpToCheckPics);

// max select image amount

intent.putExtra(MultiImageSelectorActivity.EXTRA\_SELECT\_COUNT, selectMaxCount);

// select mode (MultiImageSelectorActivity.MODE\_SINGLE OR MultiImageSelectorActivity.MODE\_MULTI)

intent.putExtra(MultiImageSelectorActivity.EXTRA\_SELECT\_MODE, selectMode);

// EXTRA\_DEFAULT\_SELECTED\_LIST

if (hasSelectList != null) \{

intent.putStringArrayListExtra(MultiImageSelectorActivity.EXTRA\_DEFAULT\_SELECTED\_LIST, hasSelectList);

mContext.startActivityForResult(intent, REQUEST\_IMAGE);

/\*\*

\* 图片格式jpeg

\* @param picResultPath 图片的要保存的地址

\* @param scaleW 截图区域的宽度 单位 dp

\* @param scaleH 截图区域的高度 单位 dp

\* @param limtWidth 裁剪出来的图的宽度

\* @param limitHight 裁剪出来的图的高度

\* @param isScaleImg 是否按照 limtWidth、limitHight的比例进行放大缩小

\* @description：

\* @author zhangjianlin (990996641)

\* @date 2015年6月11日 下午4:25:00

\*/

public static void jumpToSelecAndCropImg(Activity mContext, String picResultPath, int scaleW, int scaleH,

int limtWidth, int limitHight, boolean isScaleImg) \{

Intent intent = new Intent(mContext, MultiImageSelectorActivity.class);

// whether show camera

intent.putExtra(MultiImageSelectorActivity.EXTRA\_SHOW\_CAMERA, false);

// max select image amount

intent.putExtra(MultiImageSelectorActivity.EXTRA\_SELECT\_COUNT, 1);

// select mode (MultiImageSelectorActivity.MODE\_SINGLE OR MultiImageSelectorActivity.MODE\_MULTI)

intent.putExtra(MultiImageSelectorActivity.EXTRA\_SELECT\_MODE, MultiImageSelectorActivity.MODE\_SINGLE);

// intent.putExtra(MultiImageSelectorActivity.EXTRA\_DEFAULT\_CROP\_CAMERA, isScaleImg);

intent.putExtra(CropImageAct.RESIZEBIT, isScaleImg);

intent.putExtra(CropImageAct.RESULT, picResultPath);

intent.putExtra(CropImageAct.SCALEW, scaleW);

intent.putExtra(CropImageAct.SCALEH, scaleH);

intent.putExtra(CropImageAct.LIMITW, limtWidth);

intent.putExtra(CropImageAct.LIMITH, limitHight);

mContext.startActivityForResult(intent, REQUEST\_CROPIMAGE);

/\*\*

\* @Description:选择单张图片不剪切

\* 返回值 ArrayList

switch (requestCode) \{

case IntentUtils.REQUEST\_IMAGE:

if (data != null) \{

ArrayList resultList = data

.getStringArrayListExtra(MultiImageSelectorActivity.EXTRA\_RESULT);

break;

\* @param mContext

\*/

public static void jumpToSelectNoCropImg(Activity mContext) \{

jumpToSelectPics(mContext, false, 2, MultiImageSelectorActivity.MODE\_SINGLE);

五、baseselectactivity类

/\*\*

@Override

public void onConfigurationChanged(Configuration newConfig) \{

super.onConfigurationChanged(newConfig);

android:launchMode="singleTask"

android:configChanges="orientation|keyboardHidden|screenSize"

\* @Description: 选择图片的act

\* @author zhangjianlin

\* @date 2015-9-24 下午2:06:28

\*/

public abstract class BaseSelectPicAct extends Activity \{

private final int CROPCAMARA\_TAKEPHOTO = 1003;

private final int CROPCAMARA\_SELECTFROMALBUM = 1004;

/\*\* 从 拍照中选择 \*/

private final int ACTIVITY\_RESULT\_CROPCAMARA\_WITH\_DATA = 1;

private File mPicFile; // 选择图片路径

private String picPath;

@Override

public void onConfigurationChanged(Configuration newConfig) \{

super.onConfigurationChanged(newConfig);

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) \{

super.onActivityResult(requestCode, resultCode, data);

if (resultCode != RESULT\_OK) \{ return; \}

switch (requestCode) \{

case IntentUtils.REQUEST\_IMAGE: // 选择照片

/\*\* add by zjl \*/

if (null != data) \{

ArrayList resultList = data

.getStringArrayListExtra(MultiImageSelectorActivity.EXTRA\_RESULT);

hasSelectPicsNoCrop(resultList);

/\* if (null != resultList) \{

\* \} \*/

break;

case ACTIVITY\_RESULT\_CROPCAMARA\_WITH\_DATA: // 拍照

/\* if (mPicFile.exists()) \{

\* \} \*/

if (mPicFile == null && !TextUtils.isEmpty(picPath)) mPicFile = new File(picPath);

if (null != mPicFile && mPicFile.exists()) \{

hasTakePhotoPic(mPicFile);

break;

case IntentUtils.REQUEST\_CROPIMAGE:

if (null == data) \{ return; \}

if (TextUtils.isEmpty(mPicFile.toString()) || !mPicFile.exists()) \{

Toast.makeText(this, "没有选择图片", Toast.LENGTH\_LONG).show();

return;

String mPicNativePath = Environment.getExternalStorageDirectory().getAbsolutePath() +"/image" + mPicFile.getName();

try \{

FilecacheTool.copyFile(mPicFile.getAbsolutePath(), mPicNativePath);

\} catch (Exception e) \{

e.printStackTrace();

hasPicsCroped(mPicNativePath);

break;

\};

protected void selectPhoto() \{

ImageTool.jumpToSelectNoCropImg(this);

protected void selectPhotoAndCrop() \{

mPicFile = ImageTools.initTempFile();

/\* photoIntent = ImageTools.cropPhotoOfCompressFromGalleryIntent(Uri.fromFile(mPicFile)); startActivityForResult(photoIntent, Constant.ACTIVITY\_RESULT\_CROPIMAGE\_WITH\_DATA); \*/

ImageTool.jumpToSelecAndCropImg(this, mPicFile.toString(), 300, 300, 600, 600, true);

/\*\* 拍照 \*/

protected void takePhoto() \{

if (!ImageTools.isSDCardExist()) \{

Toast.makeText(this, "没有内存卡", Toast.LENGTH\_LONG).show();

return;

mPicFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/"

\+ System.currentTimeMillis() + ".jpg");

picPath = mPicFile.getAbsolutePath();

Intent intent = new Intent(MediaStore.ACTION\_IMAGE\_CAPTURE);

intent.putExtra(MediaStore.EXTRA\_OUTPUT, Uri.fromFile(mPicFile));

startActivityForResult(intent, ACTIVITY\_RESULT\_CROPCAMARA\_WITH\_DATA);

protected abstract void hasSelectPicsNoCrop(ArrayList resultList);

protected abstract void hasTakePhotoPic(File mPicFile);

protected abstract void hasPicsCroped(String mPicNativePath);

@Override

protected void onSaveInstanceState(Bundle outState) \{

outState.putString("picPathCache", picPath);

super.onSaveInstanceState(outState);

@Override

protected void onRestoreInstanceState(Bundle savedInstanceState) \{

picPath = savedInstanceState.getString("picPathCache");

super.onRestoreInstanceState(savedInstanceState);

六、图库选择simple

public class AlbumTestAct extends BaseSelectPicAct implements OnClickListener \{

private ImageView iv\_showresult;

@Override

protected void onCreate(Bundle savedInstanceState) \{

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.act\_albumtest);

findViewById(R.id.tv\_takephoto).setOnClickListener(this);

findViewById(R.id.tv\_selectphoto).setOnClickListener(this);

findViewById(R.id.tv\_selectandcrop).setOnClickListener(this);

iv\_showresult = (ImageView) findViewById(R.id.iv\_showresult);

@Override

public void onClick(View v) \{

// TODO Auto-generated method stub

switch (v.getId()) \{

case R.id.tv\_takephoto:

takePhoto();

break;

case R.id.tv\_selectphoto:

selectPhoto();

break;

case R.id.tv\_selectandcrop:

selectPhotoAndCrop();

break;

default:

break;

@Override

protected void hasSelectPicsNoCrop(ArrayList resultList) \{

// TODO Auto-generated method stub

if (null != resultList) \{

if(resultList.size() > 0)

ImageLoader.getInstance().displayImage(Scheme.FILE.wrap(resultList.get(0)), iv\_showresult);

@Override

protected void hasTakePhotoPic(File mPicFile) \{

// TODO Auto-generated method stub

if(null != mPicFile && mPicFile.exists())

ImageLoader.getInstance().displayImage(Scheme.FILE.wrap(mPicFile.getPath()), iv\_showresult);

@Override

protected void hasPicsCroped(String mPicNativePath) \{

// TODO Auto-generated method stub

if(null != mPicNativePath && new File(mPicNativePath).exists())

ImageLoader.getInstance().displayImage(Scheme.FILE.wrap(mPicNativePath), iv\_showresult);

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

android 微信图片浏览,Android微信图片浏览框架设计

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