android.webkit.WebView#getLayoutParams ( )源码实例Demo

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    Context context = inflater.getContext();
    DisplayMetrics metrics = context.getResources().getDisplayMetrics();
    final int DIALOG_HEIGHT =
            (int) Math.min(0.8f * metrics.heightPixels, 1024);

    View root = inflater.inflate(R.layout.custom_ui, container, false);

    WebView wv = (WebView) root.findViewById(android.R.id.primary);
    LayoutParams params = wv.getLayoutParams();
    params.height = DIALOG_HEIGHT;
    wv.setLayoutParams(params);
    View progressContainer = root.findViewById(android.R.id.progress);
    params = progressContainer.getLayoutParams();
    params.height = DIALOG_HEIGHT;
    progressContainer.setLayoutParams(params);

    return root;
}
 

public WebViewCache(Context context, String url, int size) {

        mWebViewList = new ArrayList<>(size);

        int width = ScreenAdapterUtils.getScreenWidth();
        int height = ScreenAdapterUtils.getAdHeight();

        for (int i = 0; i < DEFAULT_WEBVIEW_NUM; i++){
            WebView webView = new WebView(context);
            webView.loadUrl(url);

            ViewGroup.LayoutParams layoutParams = webView.getLayoutParams();

            if (layoutParams == null){
                layoutParams = new ViewGroup.LayoutParams(width, height);
            } else {
                layoutParams.width = width;
                layoutParams.height = height;
            }

            webView.setLayoutParams(layoutParams);
            webView.setLayerType(View.LAYER_TYPE_HARDWARE, null);

            WebSettings settings = webView.getSettings();
            settings.setJavaScriptEnabled(true);
            webView.addJavascriptInterface(new TyJavaScriptInterface(context), "android");

            mWebViewList.add(webView);
        }
    }
 

private void init(Context context) {
    mWebView = new WebView(context);
    ViewGroup.LayoutParams params = mWebView.getLayoutParams();
    if (params == null) {
        params = new ViewGroup.LayoutParams(-1, -1);
    }
    params.width = -1;
    params.height = -1;
    addView(mWebView, params);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_flexiblespacetoolbarwebview);

    setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
    ActionBar ab = getSupportActionBar();
    if (ab != null) {
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }

    mFlexibleSpaceView = findViewById(R.id.flexible_space);
    mTitleView = (TextView) findViewById(R.id.title);
    mTitleView.setText(getTitle());
    setTitle(null);
    mToolbarView = findViewById(R.id.toolbar);

    mWebViewContainer = findViewById(R.id.webViewContainer);

    final ObservableScrollView scrollView = (ObservableScrollView) findViewById(R.id.scroll);
    scrollView.setScrollViewCallbacks(this);

    WebView webView = (WebView) findViewById(R.id.webView);
    webView.loadUrl("file:///android_asset/lipsum.html");

    mFlexibleSpaceHeight = getResources().getDimensionPixelSize(R.dimen.flexible_space_height);
    int flexibleSpaceAndToolbarHeight = mFlexibleSpaceHeight + getActionBarSize();

    final FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) webView.getLayoutParams();
    layoutParams.topMargin = flexibleSpaceAndToolbarHeight;
    webView.setLayoutParams(layoutParams);

    mFlexibleSpaceView.getLayoutParams().height = flexibleSpaceAndToolbarHeight;

    ScrollUtils.addOnGlobalLayoutListener(mTitleView, new Runnable() {
        @Override
        public void run() {
            updateFlexibleSpaceText(scrollView.getCurrentScrollY());
        }
    });
}