Android使用系统自带的相机实现一键拍照功能

今天分享的是用系统自带的相机实现一键拍照功能。

public class mainactivity extends appcompatactivity {
private static final int take_photo = 100;
private imageview iv; 
@override 
protected void oncreate(bundle savedinstancestate) { 
super.oncreate(savedinstancestate); 
setcontentview(r.layout.activity_main); 
iv = (imageview) findviewbyid(r.id.iv); 
}
public void btn(view view) {
 switch (view.getid()){
  case r.id.button:
   //跳转到拍照的意图
   intent takephotointent = new intent(mediastore.action_image_capture);
   //判断系统中是否有照相机
   if (takephotointent.resolveactivity(getpackagemanager())!=null){
    startactivityforresult(takephotointent,take_photo);
   }
   break;
 }
}
/**
 * 处理数据
 * @param requestcode
 * @param resultcode
 * @param data
 */
@override
protected void onactivityresult(int requestcode, int resultcode, intent data) {
 super.onactivityresult(requestcode, resultcode, data);
 //判断请求码和返回码
 if (requestcode==take_photo&&resultcode==result_ok){
  bitmap bitmap = data.getparcelableextra("data");
  iv.setimagebitmap(bitmap);
 }
}
}