[問題] 書上範例的問題

看板AndroidDev作者negotiate (negotiate)時間13年前 (2011/08/30 00:27)推噓0(0推 0噓 2→)

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這個範例是選取SD卡中的照片再顯示在Imageview中放到手機執行的話第一次選取很正常但是直接再按Picture選取一次的話他就會直接中止程式我想請問如果我想要把它改成可以再更改一次圖片的話要怎麼做呢? 程式碼好像不算長我就直接貼了或是我有把這個範例上傳網址http://www.badongo.com/file/25710607 麻煩大家指點了 public class EX07_06 extends Activity { private Button myButton01; private ImageView myImageView01; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); myImageView01 = (ImageView) findViewById(R.id.myImageView01); myButton01 = (Button) findViewById(R.id.myButton01); myButton01.setOnClickListener(new Button.OnClickListener() { @Override public void onClick(View arg0) { Intent intent = new Intent(); /* 開啟Pictures畫面Type設定為image */ intent.setType("image/*"); /* 使用Intent.ACTION_GET_CONTENT這個Action */ intent.setAction(Intent.ACTION_GET_CONTENT); /* 取得相片後返回本畫面 */ startActivityForResult(intent, 1); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_OK) { Uri uri = data.getData(); ContentResolver cr = this.getContentResolver(); try { Bitmap bitmap = BitmapFactory.decodeStream(cr .openInputStream(uri)); /* 將Bitmap設定到ImageView */ myImageView01.setImageBitmap(bitmap); } catch (FileNotFoundException e) { e.printStackTrace(); } } super.onActivityResult(requestCode, resultCode, data); } } -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 123.193.76.104