Android编程调用Camera和相册功能详解

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="vertical" >
  <button
    android:id="@+id/button_camerabutton"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="拍照" />
  <button
    android:id="@+id/button_photobutton"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="相册" />
  <imageview
    android:id="@+id/imageview_preview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_gravity="center"
    android:src="@drawable/ic_launcher" />
</linearlayout>

package com.wj.cameratest;
import java.io.file;
import android.app.activity;
import android.content.intent;
import android.graphics.drawable.drawable;
import android.net.uri;
import android.os.bundle;
import android.os.environment;
import android.provider.mediastore;
import android.view.view;
import android.view.view.onclicklistener;
import android.widget.button;
import android.widget.imageview;
public class camerashowactivity extends activity {
  private imageview mimageview;
  private button mbuttoncamera;
  private button mbuttonphoto;
  @override
  public void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    setcontentview(r.layout.activity_camera_show);
    mimageview = (imageview) this.findviewbyid(r.id.imageview_preview);
    mbuttoncamera = (button) this.findviewbyid(r.id.button_camerabutton);
    mbuttonphoto = (button) this.findviewbyid(r.id.button_photobutton);
    mbuttoncamera.setonclicklistener(new onclicklistener() { //打开camera
      @override
      public void onclick(view v) {
        intent intent = new intent("android.media.action.image_capture");
        intent.putextra(mediastore.extra_output,
            uri.fromfile(new file(environment
                .getexternalstoragedirectory(), "camera.jpg")));
        intent.putextra(mediastore.extra_video_quality, 0);
        startactivityforresult(intent, 10);
      }
    });
    mbuttonphoto.setonclicklistener(new onclicklistener() { //获取相册
      @override
      public void onclick(view v) {
        intent intent = new intent(intent.action_get_content);
        intent.addcategory(intent.category_openable);
        intent.settype("image/*");
        intent.putextra("crop", "true");
        intent.putextra("aspectx",1);
        intent.putextra("aspecty",1);
        intent.putextra("outputx", 80);
        intent.putextra("outputy", 80);
        intent.putextra("return-data",true);
        startactivityforresult(intent, 11);
      }
    });
  }
  @override
  protected void onactivityresult(int requestcode, int resultcode, intent data) {
    if (requestcode == 10 && resultcode == activity.result_ok) {
      this.mimageview.setimagedrawable(drawable.createfrompath(new file(
          environment.getexternalstoragedirectory(), "camera.jpg")
          .getabsolutepath()));
      system.out.println("data-->"+data);
    }else if (requestcode == 11 && resultcode ==activity.result_ok) {
      system.out.println("data2-->"+data);
    }
  }
}

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.wj.cameratest"
  android:versioncode="1"
  android:versionname="1.0" >
  <uses-sdk
    android:minsdkversion="8"
    android:targetsdkversion="15" />
  <uses-permission android:name="android.permission.camera" />
  <uses-permission android:name="android.permission.mount_unmount_filesystems" />
  <uses-permission android:name="android.permission.write_external_storage" />
  <uses-feature android:name="android.hardware.camera" />
  <uses-feature android:name="android.hardware.camera.autofocus" />
  <application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/apptheme" >
    <activity
      android:name=".camerashowactivity"
      android:label="@string/title_activity_camera_show" >
      <intent-filter>
        <action android:name="android.intent.action.main" />
        <category android:name="android.intent.category.launcher" />
      </intent-filter>
    </activity>
  </application>
</manifest>

intent intent=new intent(intent.action_get_content);
intent.addcategory(intent.category_openable);
intent.settype("image/*");
intent.putextra("crop", "true");
intent.putextra("aspectx", 1);
intent.putextra("aspecty", 1);
intent.putextra("outputx", 80);
intent.putextra("outputy", 80);
intent.putextra("return-data", true);
startactivityforresult(intent, 0);

@override
 protected void onactivityresult(int requestcode, int resultcode, intent data) {
 system.out.println(resultcode);
 bitmap camerabitmap = (bitmap) data.getextras().get("data");
 super.onactivityresult(requestcode, resultcode, data);
 }