Android 調用相簿 拍照 實現系統控制項縮放 切割圖片

android 下如果做處理圖片的軟體 可以調用系統的控制項 實現縮放切割圖片 非常好的效果 今天寫了一個demo分享給大家。

 package cn.m15.test;    import java.io.ByteArrayOutputStream;  import java.io.File;  import android.app.Activity;  import android.content.Intent;  import android.graphics.Bitmap;  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 testActivity extends Activity {        public static final int NONE = 0;      public static final int PHOTOHRAPH = 1;// 拍照      public static final int PHOTOZOOM = 2; // 縮放      public static final int PHOTORESOULT = 3;// 結果        public static final String IMAGE_UNSPECIFIED = "image/*";      ImageView imageView = null;      Button button0 = null;      Button button1 = null;        @Override      public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.main);          imageView = (ImageView) findViewById(R.id.imageID);          button0 = (Button) findViewById(R.id.btn_01);          button1 = (Button) findViewById(R.id.btn_02);            button0.setOnClickListener(new OnClickListener() {              @Override              public void onClick(View v) {                  Intent intent = new Intent(Intent.ACTION_PICK, null);                  intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);                  startActivityForResult(intent, PHOTOZOOM);              }          });            button1.setOnClickListener(new OnClickListener() {                @Override              public void onClick(View v) {                  Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);                  intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));                  startActivityForResult(intent, PHOTOHRAPH);              }          });      }        @Override      protected void onActivityResult(int requestCode, int resultCode, Intent data) {          if (resultCode == NONE)              return;          // 拍照          if (requestCode == PHOTOHRAPH) {              //設定檔案儲存路徑這裡放在跟目錄下              File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg");              startPhotoZoom(Uri.fromFile(picture));          }                    if (data == null)              return;                    // 讀取相簿縮放圖片          if (requestCode == PHOTOZOOM) {              startPhotoZoom(data.getData());          }          // 處理結果          if (requestCode == PHOTORESOULT) {              Bundle extras = data.getExtras();              if (extras != null) {                  Bitmap photo = extras.getParcelable("data");                  ByteArrayOutputStream stream = new ByteArrayOutputStream();                  photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);// (0 - 100)壓縮檔                  imageView.setImageBitmap(photo);              }            }            super.onActivityResult(requestCode, resultCode, data);      }        public void startPhotoZoom(Uri uri) {          Intent intent = new Intent("com.android.camera.action.CROP");          intent.setDataAndType(uri, IMAGE_UNSPECIFIED);          intent.putExtra("crop", "true");          // aspectX aspectY 是寬高的比例          intent.putExtra("aspectX", 1);          intent.putExtra("aspectY", 1);          // outputX outputY 是裁剪圖片寬高          intent.putExtra("outputX", 64);          intent.putExtra("outputY", 64);          intent.putExtra("return-data", true);          startActivityForResult(intent, PHOTORESOULT);      }  }