Android打开相机和相册实例代码

本文实例为大家分享了android打开相机和相册具体代码，供大家参考，具体内容如下

打开相机 

 /**
   * 选择相机
   */

  private void showcamera() {
    // 跳转到系统照相机
    intent cameraintent = new intent(mediastore.action_image_capture);
    if (cameraintent.resolveactivity(getpackagemanager()) != null) {
      // 设置系统相机拍照后的输出路径
      // 创建临时文件
      mtmpfile = otherutils.createfile(getapplicationcontext());

      cameraintent.putextra(mediastore.extra_output, uri.fromfile(mtmpfile));
      startactivityforresult(cameraintent, request_camera);
    } else {
      toast.maketext(getapplicationcontext(), r.string.msg_no_camera, toast.length_short).show();
    }

  } 

打开相册

intent albumintent = new intent(intent.action_pick, null);
    albumintent.setdataandtype(mediastore.images.media.external_content_uri, "image/*");
    startactivityforresult(albumintent, request_album_ok); 

onactivityresult 

 @override
  protected void onactivityresult(int requestcode, int resultcode, intent data) {
    super.onactivityresult(requestcode, resultcode, data);

    switch (requestcode) {
      case request_camera:
        //请求相机
        if (mtmpfile != null) {
          log.d(tag, "onactivityresult: 请求相机： " + mtmpfile.getabsolutepath());

          picasso.with(this).load(mtmpfile).centercrop().resize(otherutils.dip2px(this,100),otherutils.dip2px(this,100))
              .error(r.mipmap.pictures_no).into(mivdispaly);
        }
        break;
      case request_album_ok:
        log.d(tag, "onactivityresult:相册 " + data.getdata().tostring());
        contentresolver resolver = getcontentresolver();

        try {
          inputstream inputstream = resolver.openinputstream(data.getdata());

          bitmap bitmap = bitmapfactory.decodestream(inputstream);

          mivdispaly.setimagebitmap(bitmap);

        } catch (filenotfoundexception e) {


          e.printstacktrace();
        }

        //        cursor query = resolver.query(data.getdata(), null, null, null, null);
//
//        string str = null;
//        while (query.movetonext()) {
//          log.d(tag, "onactivityresult:数量 " + query.getcount());
//          str =query.getstring(query.getcolumnindex(mediastore.images.media.data));
//          log.d(tag, "onactivityresult: 列名" + query.getstring(query.getcolumnindex(mediastore.images.media.data)));
//        }
//        query.close();
//        picasso.with(this).load(new file(str)).centercrop().resize(otherutils.dip2px(this,100),otherutils.dip2px(this,100))
//            .error(r.mipmap.pictures_no).into(mivdispaly);
        break;

    }
  } 

otherutils 

import android.content.context;
import android.os.environment;

import java.io.file;
import java.util.date;

/**
 * created by 刘楠 on 2016/7/20 0020.22:37
 */
public class otherutils {
  public static int dip2px(context context, float dpvalue) {
    final float scale = context.getresources().getdisplaymetrics().density;
    return (int) (dpvalue * scale + 0.5f);
  }

  public static int px2dip(context context, float pxvalue) {
    final float scale = context.getresources().getdisplaymetrics().density;
    return (int) (pxvalue / scale + 0.5f);
  }

  /**
   * 获取拍照相片存储文件
   * @param context
   * @return
   */
  public static file createfile(context context){
    file file;
    if(environment.getexternalstoragestate().equals(environment.media_mounted)){
      string timestamp = string.valueof(new date().gettime());
      file = new file(environment.getexternalstoragedirectory() +
          file.separator + timestamp+".jpg");
    }else{
      file cachedir = context.getcachedir();
      string timestamp = string.valueof(new date().gettime());
      file = new file(cachedir, timestamp+".jpg");
    }
    return file;
  }

}

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。