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我是android.in中的新應用程序庫小部件完全在縱向模式下運行，但是在橫向模式下沒有正確顯示。我在其中使用縱向和橫向模式的開關盒在創建方法上。如何在景觀模式下設置圖庫
我的代碼如下。
public class ViewAppGalleryActivity extends Activity {
// take an array of integer type and set its value
Integer[] mImageIds = { R.drawable.gallery_photo_19, R.drawable.gallery_photo_20,
R.drawable.gallery_photo_21, R.drawable.gallery_photo_22, R.drawable.gallery_photo_23,
R.drawable.gallery_photo_24, R.drawable.gallery_photo_25,R.drawable.gallery_photo_15,R.drawable.gallery_photo_16,R.drawable.gallery_photo_18,
R.drawable.gallery_photo_9,R.drawable.gallery_photo_10,R.drawable.gallery_photo_11,R.drawable.gallery_photo_12,R.drawable.gallery_photo_26,
R.drawable.gallery_photo_27, R.drawable.gallery_photo_28,R.drawable.gallery_photo_29, R.drawable.gallery_photo_30
};
int lastOrientation = 0;
private int imageWidth;
private ImageView leftArrowImageView;
private int selectedImagePosition = 0;
private ImageView rightArrowImageView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
switch (this.getResources().getConfiguration().orientation)
{
case Configuration.ORIENTATION_PORTRAIT:
setContentView(R.layout.main);
// take an instance of Gallery
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
final ExtendedGallery g = (ExtendedGallery)findViewById(R.id.gallery);
// g.setScrollingEnabled(false);
MarginLayoutParams mlp = (MarginLayoutParams)g.getLayoutParams();
mlp.setMargins(-(metrics.widthPixels/2 +60), mlp.topMargin,
mlp.rightMargin, mlp.bottomMargin);
// set adapter to gallery calling ImageAdapter class
g.setAdapter(new ImageAdapter(this, mImageIds));
// set onItemClickListener on gallery Object
g.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
ImageView imgView=(ImageView)findViewById(R.id.imageView1);
imgView.setImageResource(mImageIds [position]);
// TODO Auto-generated method stub
// onItemClick show Message
//selectedImagePosition =position;
if (selectedImagePosition > 0 && selectedImagePosition <mImageIds.length - 3) {
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_enabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_enabled));
}
else if (selectedImagePosition == 0)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_disabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_enabled));
}
else if (selectedImagePosition == mImageIds.length - 3 || selectedImagePosition == mImageIds.length - 2 || selectedImagePosition == mImageIds.length - 1)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_enabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_disabled));
}
}
});
g.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
selectedImagePosition = pos;
if (selectedImagePosition > 0 && selectedImagePosition <mImageIds.length - 3)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_enabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_enabled));
}
else if (selectedImagePosition == 0)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_disabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_enabled));
}
else if (selectedImagePosition == mImageIds.length - 3 || selectedImagePosition == mImageIds.length - 2 || selectedImagePosition == mImageIds.length - 1)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_enabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_disabled));
}
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
leftArrowImageView = (ImageView) findViewById(R.id.left_arrow_imageview);
rightArrowImageView = (ImageView) findViewById(R.id.right_arrow_imageview);
leftArrowImageView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if (selectedImagePosition > 2) {
--selectedImagePosition;
--selectedImagePosition;
--selectedImagePosition;
}
else if(selectedImagePosition == 2)
{
--selectedImagePosition;
--selectedImagePosition;
}
else if(selectedImagePosition == 1)
{
--selectedImagePosition;
}
g.setSelection(selectedImagePosition, false);
//g.scrollBy(20, 0);
//leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_disabled));
}
});
rightArrowImageView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if (selectedImagePosition < mImageIds.length-3)
{
++selectedImagePosition;
++selectedImagePosition;
++selectedImagePosition;
}
g.setSelection(selectedImagePosition, false);
//rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_disabled));
}
});
break;
case Configuration.ORIENTATION_LANDSCAPE:
setContentView(R.layout.land);
//setContentView(R.layout.main);
// take an instance of Gallery
DisplayMetrics metrics1 = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics1);
final ExtendedGallery g1 = (ExtendedGallery)findViewById(R.id.gallery);
// g.setScrollingEnabled(false);
MarginLayoutParams mlp1 = (MarginLayoutParams)g1.getLayoutParams();
mlp1.setMargins(-(metrics1.widthPixels/2 +60), mlp1.topMargin,
mlp1.rightMargin, mlp1.bottomMargin);
// set adapter to gallery calling ImageAdapter class
g1.setAdapter(new GalleryImageAdapter1(this, mImageIds));
// set onItemClickListener on gallery Object
g1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
ImageView imgView=(ImageView)findViewById(R.id.imageView1);
imgView.setImageResource(mImageIds [position]);
// TODO Auto-generated method stub
// onItemClick show Message
//selectedImagePosition =position;
if (selectedImagePosition > 0 && selectedImagePosition <mImageIds.length - 3) {
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_enabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_enabled));
}
else if (selectedImagePosition == 0)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_disabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_enabled));
}
else if (selectedImagePosition == mImageIds.length - 3 || selectedImagePosition == mImageIds.length - 2 || selectedImagePosition == mImageIds.length - 1)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_enabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_disabled));
}
}
});
g1.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
selectedImagePosition = pos;
if (selectedImagePosition > 0 && selectedImagePosition <mImageIds.length - 3)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_enabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_enabled));
}
else if (selectedImagePosition == 0)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_disabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_enabled));
}
else if (selectedImagePosition == mImageIds.length - 3 || selectedImagePosition == mImageIds.length - 2 || selectedImagePosition == mImageIds.length - 1)
{
leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_enabled));
rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_disabled));
}
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
leftArrowImageView = (ImageView) findViewById(R.id.left_arrow_imageview);
rightArrowImageView = (ImageView) findViewById(R.id.right_arrow_imageview);
leftArrowImageView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if (selectedImagePosition > 2) {
--selectedImagePosition;
--selectedImagePosition;
--selectedImagePosition;
}
else if(selectedImagePosition == 2)
{
--selectedImagePosition;
--selectedImagePosition;
}
else if(selectedImagePosition == 1)
{
--selectedImagePosition;
}
g1.setSelection(selectedImagePosition, false);
//g.scrollBy(20, 0);
//leftArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_left_disabled));
}
});
rightArrowImageView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if (selectedImagePosition < mImageIds.length-3)
{
++selectedImagePosition;
++selectedImagePosition;
++selectedImagePosition;
}
g1.setSelection(selectedImagePosition, false);
//rightArrowImageView.setImageDrawable(getResources().getDrawable(R.drawable.arrow_right_disabled));
}
});
break;
default:
try {
throw new Exception("Unexpected orientation enumeration returned");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
break;
}
}