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私のアプリケーションは、選択した 2 つのラジオ ボタンのいずれかに基づいてイメージ スイッチャーのコンテンツを選択する予定です。ラジオボタンをクリックすると、アプリケーションは目的のオプションを選択せず​​、最終的にアプリケーションがクラッシュしました。

大きな問題は、チェックされたラジオボタンに基づいて、swicher の画像を保持している配列を解放したいということです。

また、それを参照するイメージを持つ 2 つの配列があります。ギャラリー内のすべての配列を削除し、参照の 1 つを追加したい。これが私のコードです。

public void onCheckedChanged(RadioGroup group, int checkedId) {

    // TODO Auto-generated method stub

    //check which id is selected

    radioCheckedId= checkedId;


    //radio button checked

    switch(radioCheckedId){

        case R.id.radBtnAccident:

//すべての配列を削除 if (pics.length>0){

                for (int arr=0;arr<pics.length;arr++){

                    pics[arr]=null;

                }
            }

            //populates array

            pics = new Integer[]{ R.drawable.a, R.drawable.b, R.drawable.c, R.drawable.d,
                                  R.drawable.e,R.drawable.exit, R.drawable.plan, R.drawable.icon, R.drawable.plan };

            chooseImgArray(pics);

        break;

        case R.id.radBtnOthers:

            //populates other array

            pics = new Integer[]{R.drawable.exit, R.drawable.plan,

R.drawable.icon、R.drawable.plan、R.drawable.c };

            chooseImgArray(pics);
        break;

    default:

    break;


    }

}

public void chooseImgArray(final Integer[] array){


    iSwitcher = (ImageSwitcher) findViewById(R.id.ImgSwith);

    iSwitcher.setFactory(this);
    iSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_in));
    iSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,android.R.anim.fade_out));

    gallery = (Gallery) findViewById(R.id.galImage);

    gallery.setAdapter(new ImageAdapter(this));

    gallery.setOnItemClickListener(new OnItemClickListener() {

        public void onItemClick(AdapterView<?> arg0, View arg1, int count,long arg3) {
            iSwitcher.setImageResource(array[count]);

        }

    });




}
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1 に答える 1

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I put Example code for ImageSwitcher with Gallery Check it.
it is usefull to u.

public class TestActivity extends Activity implements ViewFactory,
        OnItemSelectedListener {

    private Gallery gallery;
    private ImageSwitcher iSwitcher;
    private RadioGroup rdgSelection;
    private Boolean flag = true;

    private Integer[] Array1 = { R.drawable.arrow, R.drawable.arrow1,
            R.drawable.arrow2, R.drawable.arrow3 };
    private Integer[] Array2 = { R.drawable.camera, R.drawable.camera1,
            R.drawable.camera2, R.drawable.camera3 };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        gallery = (Gallery) findViewById(R.id.gallery);
        iSwitcher = (ImageSwitcher) findViewById(R.id.imgSwitcher);
        rdgSelection = (RadioGroup) findViewById(R.id.rdgSelection);

        iSwitcher.setFactory(this);
        rdgSelection.check(rdgSelection.getChildAt(
                rdgSelection.getChildCount() - 1).getId());

        if (rdgSelection.getCheckedRadioButtonId() == R.id.rdb1) {
            flag = true;
            gallery.setAdapter(new ImageAdapter(TestActivity.this));
        } else {
            flag = false;
            gallery.setAdapter(new ImageAdapter(TestActivity.this));
        }
        rdgSelection.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                gallery.setAdapter(new ImageAdapter(TestActivity.this));
                if (rdgSelection.getCheckedRadioButtonId() == R.id.rdb1)
                    flag = true;
                else
                    flag = false;
            }
        });
        gallery.setOnItemSelectedListener(this);

    }

    public class ImageAdapter extends BaseAdapter {
        public ImageAdapter(Context c) {
            mContext = c;
        }

        public int getCount() {
            if (flag)
                return Array1.length;
            else
                return Array2.length;
        }

        public Object getItem(int position) {
            return position;
        }

        public long getItemId(int position) {
            return position;
        }

        public View getView(int position, View convertView, ViewGroup parent) {
            ImageView i = new ImageView(mContext);
            if (flag)
                i.setImageResource(Array1[position]);
            else
                i.setImageResource(Array2[position]);
            i.setAdjustViewBounds(true);
            i.setLayoutParams(new Gallery.LayoutParams(
                    LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
            return i;
        }

        private Context mContext;

    }

    @Override
    public View makeView() {
        ImageView i = new ImageView(this);
        i.setBackgroundColor(0xFF000000);
        i.setScaleType(ImageView.ScaleType.FIT_CENTER);
        i.setLayoutParams(new ImageSwitcher.LayoutParams(
                LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
        return i;
    }

    @Override
    public void onItemSelected(AdapterView<?> arg0, View v, int position,
            long id) {
        if (flag)
            iSwitcher.setImageResource(Array1[position]);
        else
            iSwitcher.setImageResource(Array2[position]);
    }

    @Override
    public void onNothingSelected(AdapterView<?> arg0) {

    }

}
于 2012-05-24T06:04:02.043 に答える