Java AppCompatActivity.findViewById方法代码示例

import android.support.v7.app.AppCompatActivity; //导入方法依赖的package包/类
public static void setToolbarAsBack(final AppCompatActivity activity, int id, String title) {
    Toolbar toolbar = (Toolbar) activity.findViewById(id);
    toolbar.setTitle(title);
    activity.setSupportActionBar(toolbar);
    if (activity.getSupportActionBar() != null) {
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                activity.finish();
            }
        });
        activity.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }
}
 

import android.support.v7.app.AppCompatActivity; //导入方法依赖的package包/类
public static Toolbar initToolbar(@NonNull final AppCompatActivity activity, @IdRes int toolbarId, boolean canBack, @Nullable CharSequence title) {
    Toolbar toolbar = (Toolbar) activity.findViewById(toolbarId);
    if (toolbar == null) {
        throw new IllegalStateException(
                "The subclass of ToolbarActivity must contain a toolbar.");
    }
    activity.setSupportActionBar(toolbar);
    ActionBar actionBar = activity.getSupportActionBar();
    if (actionBar != null) {
        if (canBack) {
            actionBar.setDisplayHomeAsUpEnabled(true);
            if (title != null) {
                actionBar.setTitle(title);
            } else {
                actionBar.setDisplayShowTitleEnabled(false);
            }
            toolbar.setNavigationOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    activity.onBackPressed();
                }
            });
        }

    }
    return toolbar;
}
 

import android.support.v7.app.AppCompatActivity; //导入方法依赖的package包/类
/**
 * Show the AdMob banner.
 * https://firebase.google.com/docs/admob/android/quick-start
 * @param activity activity
 */
public static void showAdMobBanner(final AppCompatActivity activity) {
    // Load an ad into the AdMob banner view.
    AdView adView = (AdView) activity.findViewById(R.id.adView);
    AdRequest adRequest = new AdRequest.Builder().build();
    adView.loadAd(adRequest);
}
 

import android.support.v7.app.AppCompatActivity; //导入方法依赖的package包/类
public static Toolbar getToolbar(AppCompatActivity activity) {
    return (Toolbar) activity.findViewById(R.id.toolbar);
}
 

import android.support.v7.app.AppCompatActivity; //导入方法依赖的package包/类
@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    // We have a menu item to show in action bar.
    setHasOptionsMenu(true);

    AppCompatActivity activity = (AppCompatActivity) getActivity();
    if (activity != null) {
        mList = new ArrayList<>();
        mCoordinatorLayout = (CoordinatorLayout) activity.findViewById(R.id.coordinator_layout);
        mSortType = mPrefs.getInt(Constants.KEY_FAVORITES_SORT, 0);
        mIsGrid = mDisplayType == 0;
        mGridColumnCount = mPrefs.getInt(Constants.KEY_GRID_COLUMN_COUNT, getResources().getInteger(R.integer.grid_num_cols));
        mListColumnCount = mPrefs.getInt(Constants.KEY_LIST_COLUMN_COUNT, getResources().getInteger(R.integer.list_num_cols));

        mLayoutManager = new GridLayoutManager(getActivity(), mIsGrid ? mGridColumnCount : mListColumnCount);
        mRecyclerView.setLayoutManager(mLayoutManager);
        // Create an empty adapter we will use to display the loaded data.
        mAdapter = new AnimeRecyclerAdapter(mList, mDisplayType, getActivity(), true, mAnimeClickListener);
        mAdapter.setRecyclerView(mRecyclerView);
        mRecyclerView.setAdapter(mAdapter);

    }

    //Restore previous state
    if (savedInstanceState != null) {
        //Selection
        mAdapter.onRestoreInstanceState(savedInstanceState);
        if (mAdapter.getSelectedItemCount() > 0) {
            mActionMode = ((AppCompatActivity) getActivity()).startSupportActionMode(new RecordOptions((AppCompatActivity) getActivity()));
        }
        //Previously serialized activated item position
        if (savedInstanceState.containsKey(STATE_ACTIVATED_POSITION))
            setSelection(savedInstanceState.getInt(STATE_ACTIVATED_POSITION));

    }

    // Prepare the loader.  Either re-connect with an existing one,
    // or start a new one.
    getLoaderManager().initLoader(0, null, this);
}
 

import android.support.v7.app.AppCompatActivity; //导入方法依赖的package包/类
@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    // We have a menu item to show in action bar.
    setHasOptionsMenu(true);

    AppCompatActivity activity = (AppCompatActivity) getActivity();
    if (activity != null) {
        mCoordinatorLayout = (CoordinatorLayout) activity.findViewById(R.id.coordinator_layout);
        mAppBarLayout = (ControllableAppBarLayout) activity.findViewById(R.id.appbar_layout);
        if (mPrefs == null)
            mPrefs = PreferenceManager.getDefaultSharedPreferences(activity);
        mDisplayType = Integer.parseInt(mPrefs.getString(Constants.KEY_LIBRARY_DISPLAY_TYPE, "0"));
        mAnimeMap = new HashMap<String, Anime>();
        mPrevPath = new Stack<String>();
        if (TextUtils.isEmpty(mPath)) {
            if (StorageUtils.getDataDirectory() != null)
                mPath = StorageUtils.getDataDirectory().getAbsolutePath();
            else
                mPath = Environment.getExternalStorageDirectory().getAbsolutePath();
        }
        // Create an empty adapter we will use to display the loaded data.
        mAdapter = new LibraryRecyclerAdapter(getActivity(), mDisplayType, mLibraryClickListener);
        mRecyclerView.setAdapter(mAdapter);
    }

    //Restore previous state
    if (savedInstanceState != null) {
        ArrayList<String> mPrevPathList = savedInstanceState.getStringArrayList(Constants.ANIME_PREV_PATH_LIST);
        if (mPrevPathList != null && !mPrevPathList.isEmpty() && mPrevPath.size() != mPrevPathList.size()) {
            for (String s : mPrevPathList) {
                mPrevPath.push(s);
            }
        }
        if (mAdapter != null) {
            //Selection
            mAdapter.onRestoreInstanceState(savedInstanceState);
            if (mAdapter.getSelectedItemCount() > 0) {
                mActionMode = ((AppCompatActivity) getActivity()).startSupportActionMode(new RecordOptions((AppCompatActivity) getActivity()));
            }
            //Previously serialized activated item position
            if (savedInstanceState.containsKey(STATE_ACTIVATED_POSITION))
                setSelection(savedInstanceState.getInt(STATE_ACTIVATED_POSITION));
        }
    }

    // Prepare the loader.  Either re-connect with an existing one,
    // or start a new one.
    getLoaderManager().initLoader(0, null, this);
}