package com.xiaoma.piccut.demo;  import java.io.File; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.drawable.BitmapDrawable; 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.ImageButton; import android.widget.ImageView; /**  * 調用系統相冊或者拍照來實現圖片的裁剪、縮放  * @author Kiritor  **/ public class PicCutDemoActivity extends Activity {   private Button btn = null;  /** Called when the activity is first created. */  @Override  public void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   setContentView(R.layout.main);   //初始化   init();  }    /**   * 初始化方法實現   */  private void init() {   btn = (Button) findViewById(R.id.button1);   btn.setOnClickListener(new OnClickListener() {    @Override    public void onClick(View v) {     ShowPickDialog();    }   });  }     /**   * 控件點擊事件實現   *   * 因為有朋友問不同控件的背景圖裁剪怎么實現，   * 我就在這個地方用了三個控件，只為了自己記錄學習   * 大家覺得沒用的可以跳過啦   */     /**   * 選擇提示對話框   */  private void ShowPickDialog() {   new AlertDialog.Builder(this)     .setTitle("設置頭像...")     .setNegativeButton("相冊", new DialogInterface.OnClickListener() {      public void onClick(DialogInterface dialog, int which) {       dialog.dismiss();              Intent intent = new Intent(Intent.ACTION_PICK, null);              /**        * 下面這句話，與其它方式寫是一樣的效果，如果：        * intent.setData(MediaStore.Images.Media.EXTERNAL_CONTENT_URI);        * intent.setType(""image/*");設置數據類型        * 如果朋友們要限制上傳到服務器的圖片類型時可以直接寫如："image/jpeg 、 image/png等的類型"        */       intent.setDataAndType(         MediaStore.Images.Media.EXTERNAL_CONTENT_URI,         "image/*");       startActivityForResult(intent, 1);       }     })     .setPositiveButton("拍照", new DialogInterface.OnClickListener() {      public void onClick(DialogInterface dialog, int whichButton) {       dialog.dismiss();       Intent intent = new Intent(         MediaStore.ACTION_IMAGE_CAPTURE);       //下面這句指定調用相機拍照后的照片存儲的路徑       intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri         .fromFile(new File(Environment           .getExternalStorageDirectory(),           "xiaoma.jpg")));       startActivityForResult(intent, 2);      }     }).show();  }   @Override  protected void onActivityResult(int requestCode, int resultCode, Intent data) {   switch (requestCode) {   // 如果是直接從相冊獲取   case 1:    startPhotoZoom(data.getData());    break;   // 如果是調用相機拍照時   case 2:    File temp = new File(Environment.getExternalStorageDirectory()      + "/test.jpg");    startPhotoZoom(Uri.fromFile(temp));    break;   // 取得裁剪后的圖片   case 3:    if(data != null){     setPicToView(data);    }    break;   default:    break;    }   super.onActivityResult(requestCode, resultCode, data);  }    /**   * 裁剪圖片方法實現   * @param uri   */  public void startPhotoZoom(Uri uri) {   Intent intent = new Intent("com.android.camera.action.CROP");   intent.setDataAndType(uri, "image/*");   //下面這個crop=true是設置在開啟的Intent中設置顯示的VIEW可裁剪   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", 150);   intent.putExtra("outputY", 150);   intent.putExtra("return-data", true);   startActivityForResult(intent, 3);  }    /**   * 保存裁剪之后的圖片數據   * @param picdata   */  private void setPicToView(Intent picdata) {   Bundle extras = picdata.getExtras();   if (extras != null) {    Bitmap photo = extras.getParcelable("data");    Drawable drawable = new BitmapDrawable(photo);       }  }  }