Android编程调用Camera和相册功能详解

本文实例讲述了Android编程调用Camera和相册功能。

分享给大家供大家参考,具体如下:

xml:



  

activity:


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.xml



  

android 调用相册里的图片并返回


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);


在原来的Activity中如下获取选到的图片:


@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);
 }


PS:关于AndroidManifest.xml文件相关属性功能可参考本站在线工具:

Android Manifest功能与权限描述大全:

http://tools.jb51.net/table/AndroidManifest

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希望本文所述对大家Android程序设计有所帮助。

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