main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <Button android:id="@+id/btn" android:layout_width="fill_parent" android:layout_height="wrap_content" android:onClick="pickAPhoto" android:text="挑照片" /> <FrameLayout android:layout_width="fill_parent" android:layout_height="fill_parent" > <ImageView android:id="@+id/iv" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="@string/hello" /> <TextView android:id="@+id/tv" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="bottom" android:gravity="center" /> </FrameLayout> </LinearLayout>PickAPhotoActivity
public class PickAPhotoActivity extends Activity {
private static final String TAG = "PickAPhotoActivity";
private static final int REQUEST_CODE = 1;
private ImageView iv;
private TextView tv;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.iv = (ImageView) this.findViewById(R.id.iv);
this.tv = (TextView) this.findViewById(R.id.tv);
}
public void pickAPhoto(View v) {
Intent it = new Intent(Intent.ACTION_GET_CONTENT);
it.setType("image/*");
this.startActivityForResult(it, REQUEST_CODE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode != REQUEST_CODE) {
Log.e(TAG, "不是挑照片");
return;
}
if (resultCode != RESULT_OK) {
Log.e(TAG, "挑照片失敗");
return;
}
Uri uri = data.getData();
this.iv.setImageURI(uri);
this.tv.setText(uri.getPath());
}
}
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