android - 如何禁用背后 View 点击事件Framelayout

Question

这里我有一个 View 寻呼机 Activity ，它有一个 ImageView 和 2 个覆盖栏。我使用 android xml 文件布局本身制作了覆盖栏。

这里我的要求是这样的

1) 第一次单击查看寻呼机的 ImageView = 显示顶部和底部矩形覆盖栏。2) 第二次单击查看寻呼机的 ImageView = 隐藏这些叠加层。

这两个都是类似android画廊 View 类型的功能。

但是，当这些顶部和底部布局栏显示时，我只想使用按钮单击仅在此布局中声明的按钮。

但我没有成功实现这件事。

问题

1) 当 top 或 bottom bar 存在时，如果我可以单击 next 或 previous 按钮，而不是它在 imageview 单击单击事件后面的事件，以及我的栏越来越看不见了。2) 只想声明按钮事件3) 当我触摸覆盖栏时，避免点击 imageview。

简而言之，当我的顶部和底部图像栏出现时，顶部和底部图像栏的 ImageView 不会发生任何 touh 事件。当我点击下一个或上一个或共享按钮时，我可以点击 imageview 但无法点击。

所以这些是我面临的问题，请帮助我。

源代码:

activity_pager_image.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <android.support.v4.view.ViewPager
        android:id="@+id/pager"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

    <RelativeLayout
        android:id="@+id/rl_top_overlay"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/slideshow_bar"
        android:visibility="gone" >

        <TextView
            android:id="@+id/tv_top_overlay"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="true"
            android:textIsSelectable="false" />
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/rl_bottom_overlay"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        android:background="@drawable/slideshow_bar"
        android:visibility="visible" >

        <Button
            android:id="@+id/btn_left_arrow"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:layout_marginLeft="35dp"
            android:background="@drawable/ic_left_arrow" />

        <Button
            android:id="@+id/btn_below_share"
            style="@style/normalText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:layout_marginRight="35dp"
            android:background="@drawable/ic_share"
            android:visibility="visible" />

        <Button
            android:id="@+id/btn_right_arrow"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="true"
            android:layout_marginLeft="50dp"
            android:layout_toRightOf="@id/btn_left_arrow"
            android:background="@drawable/ic_right_arrow" />
    </RelativeLayout>

</FrameLayout>

item_pager_image.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <demo.android.library.imagezoom.ImageViewTouch
        android:id="@+id/image"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:adjustViewBounds="true"
        android:contentDescription="@string/descr_image"
        android:scaleType="fitXY" />

</FrameLayout>

JAVA代码

public class ImagePagerActivity extends BaseActivity {

    private static final String STATE_POSITION = "STATE_POSITION";
    private DisplayImageOptions options;
    private String[] imageUrls;
    private ViewPager pager;

    private static int sCounter = 0;

    private RelativeLayout mRlTopOverlayBar = null;
    private RelativeLayout mRlBottomOverlayBar = null;
    private TextView mPageNumberText = null;
    private Button mLeftArrow = null;
    private Button mRightArrow = null;

    int mPageCounter = 0;
    int mTotalImages = 0;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_image_pager);

        mRlTopOverlayBar = (RelativeLayout) findViewById(R.id.rl_top_overlay);
        mRlBottomOverlayBar = (RelativeLayout) findViewById(R.id.rl_bottom_overlay);

        mPageNumberText = (TextView) findViewById(R.id.tv_top_overlay);
        mLeftArrow = (Button) findViewById(R.id.btn_left_arrow);
        mRightArrow = (Button) findViewById(R.id.btn_right_arrow);

        Bundle bundle = getIntent().getExtras();
        String[] imageUrls = bundle
                .getStringArray(Constants.GALLARY_IMAGES_IMAGE_BUNDLE_KEY);

        mTotalImages = imageUrls.length;

        mPageCounter = bundle.getInt(
                Constants.GALLARY_IMAGE_POSITION_BUNDLE_KEY, 0);

        Log.d("TAG", "Pre Poistion " + mPageCounter);

        if (savedInstanceState != null) {
            mPageCounter = savedInstanceState.getInt(STATE_POSITION);
        }

        options = new DisplayImageOptions.Builder()
                .showImageForEmptyUri(R.drawable.photo_default)
                .showImageOnFail(R.drawable.ic_error).resetViewBeforeLoading()
                .cacheOnDisc().imageScaleType(ImageScaleType.EXACTLY)
                .bitmapConfig(Bitmap.Config.RGB_565)
                .displayer(new FadeInBitmapDisplayer(300)).build();

        pager = (ViewPager) findViewById(R.id.pager);
        pager.setAdapter(new ImagePagerAdapter(imageUrls));
        pager.setCurrentItem(mPageCounter);

        mLeftArrow.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // int setCounter = mPageCounter - 1;
                // if (setCounter >= 0) {

                // }
                pager.setCurrentItem(pager.getCurrentItem() - 1);

            }
        });

        mRightArrow.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                pager.setCurrentItem(pager.getCurrentItem() + 1);
                /*
                 * int setCounter = mPageCounter + 1; if (setCounter <
                 * mTotalImages) { pager.setCurrentItem(mPageCounter + 1); }
                 */
            }
        });
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        outState.putInt(STATE_POSITION, pager.getCurrentItem());
    }

    private class ImagePagerAdapter extends PagerAdapter {

        private String[] images;
        private LayoutInflater inflater;

        ImagePagerAdapter(String[] images) {
            this.images = images;
            inflater = getLayoutInflater();
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            ((ViewPager) container).removeView((View) object);
        }

        @Override
        public void finishUpdate(View container) {
        }

        @Override
        public int getCount() {
            return images.length;
        }

        @Override
        public Object instantiateItem(ViewGroup view, int position) {
            View imageLayout = inflater.inflate(R.layout.item_pager_image,
                    view, false);

            Log.d("TAG", "Poistion " + position);
            final ImageViewTouch imageView = (ImageViewTouch) imageLayout
                    .findViewById(R.id.image);

            final DeactivableViewPager viewPager = new DeactivableViewPager(
                    ImagePagerActivity.this);
            imageView.setOnScaleListener(new OnPageScaleListener() {

                @Override
                public void onScaleBegin() {
                    viewPager.deactivate();
                }

                @Override
                public void onScaleEnd(float scale) {
                    if (scale > 1.0) {
                        viewPager.deactivate();
                    } else {
                        viewPager.activate();
                    }
                }
            });

            imageView
                    .setSingleTapListener(new OnImageViewTouchSingleTapListener() {

                        @Override
                        public void onSingleTapConfirmed() {
                            Log.d("TAG", "setSingleTapListener");

                            sCounter++;
                            if (sCounter % 2 == 0) {
                                mRlTopOverlayBar.setVisibility(View.GONE);
                                mRlBottomOverlayBar.setVisibility(View.GONE);
                            } else {
                                mRlTopOverlayBar.setVisibility(View.VISIBLE);
                                mRlBottomOverlayBar.setVisibility(View.VISIBLE);
                                mRlBottomOverlayBar.setClickable(false);
                                mRlTopOverlayBar.setClickable(false);
                            }
                        }
                    });

            imageLoader.displayImage(images[position], imageView, options,
                    new SimpleImageLoadingListener() {
                        @Override
                        public void onLoadingStarted(String imageUri, View view) {
                            // spinner.setVisibility(View.VISIBLE);
                        }

                        @Override
                        public void onLoadingFailed(String imageUri, View view,
                                FailReason failReason) {
                            String message = null;
                            switch (failReason.getType()) {
                            case IO_ERROR:
                                message = "Input/Output error";
                                break;
                            case DECODING_ERROR:
                                message = "Image can't be decoded";
                                break;
                            case NETWORK_DENIED:
                                message = "Downloads are denied";
                                break;
                            case OUT_OF_MEMORY:
                                message = "Out Of Memory error";
                                break;
                            case UNKNOWN:
                                message = "Unknown error";
                                break;
                            }
                            Toast.makeText(ImagePagerActivity.this, message,
                                    Toast.LENGTH_SHORT).show();

                            // spinner.setVisibility(View.GONE);
                        }

                        @Override
                        public void onLoadingComplete(String imageUri,
                                View view, Bitmap loadedImage) {
                            // spinner.setVisibility(View.GONE);
                        }
                    });

            ((ViewPager) view).addView(imageLayout, 0);
            return imageLayout;
        }

        @Override
        public boolean isViewFromObject(View view, Object object) {
            return view.equals(object);
        }

        @Override
        public void restoreState(Parcelable state, ClassLoader loader) {
        }

        @Override
        public Parcelable saveState() {
            return null;
        }

        @Override
        public void startUpdate(View container) {
        }

    }
}

图片:

谢谢

Answer 1

更好的方法是将顶部和底部框架设置为可点击，使用:

android:clickable="true"

这样做将确保 View /框架本身将捕获所有点击事件，并且不会将其传递给它后面的 View 。请注意，此方法适用于所有布局/ View /控件，但许多控件(如按钮)已默认启用此功能。