Android从相机或相册获取图片裁剪

package com.only.android.app;

02

03	import java.io.File;

04

05	import android.app.Activity;

06	import android.app.AlertDialog;

07	import android.content.DialogInterface;

08	import android.content.Intent;

09	import android.graphics.Bitmap;

10	import android.graphics.BitmapFactory;

11	import android.net.Uri;

12	import android.os.Bundle;

13	import android.os.SystemClock;

14	import android.provider.MediaStore;

15	import android.view.View;

16	import android.widget.Button;

17	import android.widget.ImageView;

18

19	import com.only.android.R;

20

21	public class CopyOfImageScaleActivity  extends Activity  implements View.OnClickListener {

22

23	private Button selectImageBtn;

24	private ImageView imageView;

25

26	private File sdcardTempFile;

27	private AlertDialog dialog;

28	private int crop =  180 ;

29

30

@Override

31	public void onCreate(Bundle savedInstanceState) {

32	super .onCreate(savedInstanceState);

33	setContentView(R.layout.imagescale);

34

35	selectImageBtn = (Button) findViewById(R.id.selectImageBtn);

36	imageView = (ImageView) findViewById(R.id.imageView);

37

38	selectImageBtn.setOnClickListener( this );

39	sdcardTempFile =  new File( "/mnt/sdcard/" ,  "tmp_pic_" + SystemClock.currentThreadTimeMillis() +  ".jpg" );

40

41

}

42

43

@Override

44	public void onClick(View v) {

45	if (v == selectImageBtn) {

46	if (dialog ==  null ) {

47	dialog =  new AlertDialog.Builder( this ).setItems( new String[] {  "相机" ,  "相册" },  new DialogInterface.OnClickListener() {

48

@Override

49	public void onClick(DialogInterface dialog,  int which) {

50	if (which ==  ) {

51	Intent intent =  new Intent( "android.media.action.IMAGE_CAPTURE" );

52	intent.putExtra( "output" , Uri.fromFile(sdcardTempFile));

53	intent.putExtra( "crop" ,  "true" );

54	intent.putExtra( "aspectX" ,  1 ); // 裁剪框比例

55	intent.putExtra( "aspectY" ,  1 );

56	intent.putExtra( "outputX" , crop); // 输出图片大小

57	intent.putExtra( "outputY" , crop);

58	startActivityForResult(intent,  101 );

59

}  else {

60	Intent intent =  new Intent( "android.intent.action.PICK" );

61	intent.setDataAndType(MediaStore.Images.Media.INTERNAL_CONTENT_URI,  "image/*" );

62	intent.putExtra( "output" , Uri.fromFile(sdcardTempFile));

63	intent.putExtra( "crop" ,  "true" );

64	intent.putExtra( "aspectX" ,  1 ); // 裁剪框比例

65	intent.putExtra( "aspectY" ,  1 );

66	intent.putExtra( "outputX" , crop); // 输出图片大小

67	intent.putExtra( "outputY" , crop);

68	startActivityForResult(intent,  100 );

69

}

70

}

71	}).create();

72

}

73	if (!dialog.isShowing()) {

74	dialog.show();

75

}

76

}

77

}

78

79

@Override

80	protected void onActivityResult( int requestCode,  int resultCode, Intent intent) {

81	if (resultCode == RESULT_OK) {

82	Bitmap bmp = BitmapFactory.decodeFile(sdcardTempFile.getAbsolutePath());

83	imageView.setImageBitmap(bmp);

84

}

85

}

86

}