Question

WhatsApp有这样的工具栏：

何时搜索＆＃39;单击菜单项，从顶部SearchView下来，占用工具栏的整个空间：

当我尝试实现SearchView时，它看起来像这样：

我找到了一些实现这个的库： Android Material SearchView by Eugene Horan 和MaterialSearchView by krishnakapil。但它们与WhatsApp不同。

这个问题可能看起来很奇怪，我找不到怎么做的方法。所以我的问题是如何实现WhatsApp，如材料设计SearchView来自顶级？

Answer 1

我已经开发了一个受欢迎的图书馆。

你究竟在寻找什么。

试一试，告诉你是否对你有用。

这是MaterialSearchView的Github回购。

Answer 2

抱歉，我误解了这个问题。

这个答案可以解决你的问题。

答案取自： - Creating a SearchView that looks like the material design guidelines

经过一周的困惑。我想我已经弄清楚了。
我现在只使用工具栏内的EditText。这是由redjit上的oj88向我建议的。

我现在有这个：
New SearchView

首先在我的活动的onCreate（）里面，我将带有右侧图像视图的EditText添加到工具栏，如下所示：

    // Setup search container view
    searchContainer = new LinearLayout(this);
    Toolbar.LayoutParams containerParams = new Toolbar.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
    containerParams.gravity = Gravity.CENTER_VERTICAL;
    searchContainer.setLayoutParams(containerParams);

    // Setup search view
    toolbarSearchView = new EditText(this);
    // Set width / height / gravity
    int[] textSizeAttr = new int[]{android.R.attr.actionBarSize};
    int indexOfAttrTextSize = 0;
    TypedArray a = obtainStyledAttributes(new TypedValue().data, textSizeAttr);
    int actionBarHeight = a.getDimensionPixelSize(indexOfAttrTextSize, -1);
    a.recycle();
    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0, actionBarHeight);
    params.gravity = Gravity.CENTER_VERTICAL;
    params.weight = 1;
    toolbarSearchView.setLayoutParams(params);

    // Setup display
    toolbarSearchView.setBackgroundColor(Color.TRANSPARENT);
    toolbarSearchView.setPadding(2, 0, 0, 0);
    toolbarSearchView.setTextColor(Color.WHITE);
    toolbarSearchView.setGravity(Gravity.CENTER_VERTICAL);
    toolbarSearchView.setSingleLine(true);
    toolbarSearchView.setImeActionLabel("Search", EditorInfo.IME_ACTION_UNSPECIFIED);
    toolbarSearchView.setHint("Search");
    toolbarSearchView.setHintTextColor(Color.parseColor("#b3ffffff"));
    try {
        // Set cursor colour to white
        // https://stackoverflow.com/a/26544231/1692770
        // https://github.com/android/platform_frameworks_base/blob/kitkat-release/core/java/android/widget/TextView.java#L562-564
        Field f = TextView.class.getDeclaredField("mCursorDrawableRes");
        f.setAccessible(true);
        f.set(toolbarSearchView, R.drawable.edittext_whitecursor);
    } catch (Exception ignored) {
    }

    // Search text changed listener
    toolbarSearchView.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            Fragment mainFragment = getFragmentManager().findFragmentById(R.id.container);
            if (mainFragment != null && mainFragment instanceof MainListFragment) {
                ((MainListFragment) mainFragment).search(s.toString());
            }
        }

        @Override
        public void afterTextChanged(Editable s) {
            // https://stackoverflow.com/a/6438918/1692770
            if (s.toString().length() <= 0) {
                toolbarSearchView.setHintTextColor(Color.parseColor("#b3ffffff"));
            }
        }
    });
    ((LinearLayout) searchContainer).addView(toolbarSearchView);

    // Setup the clear button
    searchClearButton = new ImageView(this);
    Resources r = getResources();
    int px = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 16, r.getDisplayMetrics());
    LinearLayout.LayoutParams clearParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    clearParams.gravity = Gravity.CENTER;
    searchClearButton.setLayoutParams(clearParams);
    searchClearButton.setImageResource(R.drawable.ic_close_white_24dp); // TODO: Get this image from here: https://github.com/google/material-design-icons
    searchClearButton.setPadding(px, 0, px, 0);
    searchClearButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            toolbarSearchView.setText("");
        }
    });
    ((LinearLayout) searchContainer).addView(searchClearButton);

    // Add search view to toolbar and hide it
    searchContainer.setVisibility(View.GONE);
    toolbar.addView(searchContainer);

这很有用，但后来我遇到了一个问题，当我点击主页按钮时，onOptionsItemSelected（）没有被调用。所以我无法通过按主页按钮取消搜索。我尝试了几种不同的方式在主页按钮上注册点击监听器，但它们没有用。

最终我发现我的ActionBarDrawerToggle干扰了事情，所以我把它删除了。然后这个监听器开始工作：

    toolbar.setNavigationOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // toolbarHomeButtonAnimating is a boolean that is initialized as false. It's used to stop the user pressing the home button while it is animating and breaking things.
            if (!toolbarHomeButtonAnimating) {
                // Here you'll want to check if you have a search query set, if you don't then hide the search box.
                // My main fragment handles this stuff, so I call its methods.
                FragmentManager fragmentManager = getFragmentManager();
                final Fragment fragment = fragmentManager.findFragmentById(R.id.container);
                if (fragment != null && fragment instanceof MainListFragment) {
                    if (((MainListFragment) fragment).hasSearchQuery() || searchContainer.getVisibility() == View.VISIBLE) {
                        displaySearchView(false);
                        return;
                    }
                }
            }

            if (mDrawerLayout.isDrawerOpen(findViewById(R.id.navigation_drawer)))
                mDrawerLayout.closeDrawer(findViewById(R.id.navigation_drawer));
            else
                mDrawerLayout.openDrawer(findViewById(R.id.navigation_drawer));
        }
    });

所以我现在可以使用主页按钮取消搜索，但我无法按后退按钮取消它。所以我把它添加到onBackPressed（）：

    FragmentManager fragmentManager = getFragmentManager();
    final Fragment mainFragment = fragmentManager.findFragmentById(R.id.container);
    if (mainFragment != null && mainFragment instanceof MainListFragment) {
        if (((MainListFragment) mainFragment).hasSearchQuery() || searchContainer.getVisibility() == View.VISIBLE) {
            displaySearchView(false);
            return;
        }
    }

我创建了此方法来切换EditText和菜单项的可见性：

public void displaySearchView(boolean visible) {
    if (visible) {
        // Stops user from being able to open drawer while searching
        mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);

        // Hide search button, display EditText
        menu.findItem(R.id.action_search).setVisible(false);
        searchContainer.setVisibility(View.VISIBLE);

        // Animate the home icon to the back arrow
        toggleActionBarIcon(ActionDrawableState.ARROW, mDrawerToggle, true);

        // Shift focus to the search EditText
        toolbarSearchView.requestFocus();

        // Pop up the soft keyboard
        new Handler().postDelayed(new Runnable() {
            public void run() {
                toolbarSearchView.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN, 0, 0, 0));
                toolbarSearchView.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, 0, 0, 0));
            }
        }, 200);
    } else {
        // Allows user to open drawer again
        mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED);

        // Hide the EditText and put the search button back on the Toolbar.
        // This sometimes fails when it isn't postDelayed(), don't know why.
        toolbarSearchView.postDelayed(new Runnable() {
            @Override
            public void run() {
                toolbarSearchView.setText("");
                searchContainer.setVisibility(View.GONE);
                menu.findItem(R.id.action_search).setVisible(true);
            }
        }, 200);

        // Turn the home button back into a drawer icon
        toggleActionBarIcon(ActionDrawableState.BURGER, mDrawerToggle, true);

        // Hide the keyboard because the search box has been hidden
        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(toolbarSearchView.getWindowToken(), 0);
    }
}

我需要一种方法来切换抽屉图标和后退按钮之间工具栏上的主页按钮。我最终在this SO answer中找到了以下方法。虽然我稍微修改它以使我更有意义：

private enum ActionDrawableState {
    BURGER, ARROW
}

/**
 * Modified version of this, https://stackoverflow.com/a/26836272/1692770<br>
 * I flipped the start offset around for the animations because it seemed like it was the wrong way around to me.<br>
 * I also added a listener to the animation so I can find out when the home button has finished rotating.
 */
private void toggleActionBarIcon(final ActionDrawableState state, final ActionBarDrawerToggle toggle, boolean animate) {
    if (animate) {
        float start = state == ActionDrawableState.BURGER ? 1.0f : 0f;
        float end = Math.abs(start - 1);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            ValueAnimator offsetAnimator = ValueAnimator.ofFloat(start, end);
            offsetAnimator.setDuration(300);
            offsetAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
            offsetAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                @Override
                public void onAnimationUpdate(ValueAnimator animation) {
                    float offset = (Float) animation.getAnimatedValue();
                    toggle.onDrawerSlide(null, offset);
                }
            });
            offsetAnimator.addListener(new Animator.AnimatorListener() {
                @Override
                public void onAnimationStart(Animator animation) {

                }

                @Override
                public void onAnimationEnd(Animator animation) {
                    toolbarHomeButtonAnimating = false;
                }

                @Override
                public void onAnimationCancel(Animator animation) {

                }

                @Override
                public void onAnimationRepeat(Animator animation) {

                }
            });
            toolbarHomeButtonAnimating = true;
            offsetAnimator.start();
        }
    } else {
        if (state == ActionDrawableState.BURGER) {
            toggle.onDrawerClosed(null);
        } else {
            toggle.onDrawerOpened(null);
        }
    }
}

这很有效，我设法解决了我在路上发现的一些错误。我认为它不是100％，但对我来说效果还不错。

编辑：如果你想用XML而不是Java添加搜索视图，请执行以下操作：

toolbar.xml：

<android.support.v7.widget.Toolbar 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/toolbar"
    contentInsetLeft="72dp"
    contentInsetStart="72dp"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="?attr/colorPrimary"
    android:elevation="4dp"
    android:minHeight="?attr/actionBarSize"
    app:contentInsetLeft="72dp"
    app:contentInsetStart="72dp"
    app:popupTheme="@style/ActionBarPopupThemeOverlay"
    app:theme="@style/ActionBarThemeOverlay">

    <LinearLayout
        android:id="@+id/search_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center_vertical"
        android:orientation="horizontal">

        <EditText
            android:id="@+id/search_view"
            android:layout_width="0dp"
            android:layout_height="?attr/actionBarSize"
            android:layout_weight="1"
            android:background="@android:color/transparent"
            android:gravity="center_vertical"
            android:hint="Search"
            android:imeOptions="actionSearch"
            android:inputType="text"
            android:maxLines="1"
            android:paddingLeft="2dp"
            android:singleLine="true"
            android:textColor="#ffffff"
            android:textColorHint="#b3ffffff" />

        <ImageView
            android:id="@+id/search_clear"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:paddingLeft="16dp"
            android:paddingRight="16dp"
            android:src="@drawable/ic_close_white_24dp" />
    </LinearLayout>
</android.support.v7.widget.Toolbar>

你的活动的onCreate（）：

    searchContainer = findViewById(R.id.search_container);
    toolbarSearchView = (EditText) findViewById(R.id.search_view);
    searchClearButton = (ImageView) findViewById(R.id.search_clear);

    // Setup search container view
    try {
        // Set cursor colour to white
        // https://stackoverflow.com/a/26544231/1692770
        // https://github.com/android/platform_frameworks_base/blob/kitkat-release/core/java/android/widget/TextView.java#L562-564
        Field f = TextView.class.getDeclaredField("mCursorDrawableRes");
        f.setAccessible(true);
        f.set(toolbarSearchView, R.drawable.edittext_whitecursor);
    } catch (Exception ignored) {
    }

    // Search text changed listener
    toolbarSearchView.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            Fragment mainFragment = getFragmentManager().findFragmentById(R.id.container);
            if (mainFragment != null && mainFragment instanceof MainListFragment) {
                ((MainListFragment) mainFragment).search(s.toString());
            }
        }

        @Override
        public void afterTextChanged(Editable s) {
        }
    });

    // Clear search text when clear button is tapped
    searchClearButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            toolbarSearchView.setText("");
        }
    });

    // Hide the search view
    searchContainer.setVisibility(View.GONE);

Answer 3

您可以使用android.support.v7库

创建此内容

首先在menu.xml中创建菜单项，如：

<item android:id="@+id/action_search"
    android:title="Search"
    android:icon="@drawable/abc_ic_search_api_mtrl_alpha"
    app:showAsAction="ifRoom|collapseActionView"
    app:actionViewClass="android.support.v7.widget.SearchView" />

扩展 AppCompatActivity 并检索 onCreateOptionsMenu 中的SearchView，如：

import android.support.v7.widget.SearchView;

...

public class YourActivity extends AppCompatActivity {

    ...

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_home, menu);
        // Retrieve the SearchView and plug it into SearchManager
        final SearchView searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search));
        SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
        searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
        return true;
    }

    ... 

}

多数民众赞成。希望这对你有所帮助。如果你发现它有用，请接受。

Answer 4

我发布了我的开源软件，它完全模仿whatsapp工具栏的功能（包括圆形动画）。

Code
Full example

如何实现WhatsApp像材料设计SearchView？

4 个答案: