Android绘制炫酷引导界面

前端技术 2023/09/06 Android

一个超炫的引导界面，分享给大家

代码：
MainActivity.java

package com.bzu.gxs.webview1;

import android.app.Activity;
import android.os.Build;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends Activity {

  private MyWebView myWebView;

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

    myWebView = (MyWebView) findViewById(R.id.webView);
    myWebView.getSettings().setJavaScriptEnabled(true);
    init();
    myWebView.loadUrl(\"http://h5.eqxiu.com/s/F93iW6fu\");
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.my, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

  @Override
  public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK && myWebView.canGoBack()) {
      myWebView.goBack();
      return true;
    }
    return super.onKeyDown(keyCode, event);
  }

  public void init(){
    if(Build.VERSION.SDK_INT >= 19) {
      myWebView.getSettings().setLoadsImagesAutomatically(true);
    } else {
      myWebView.getSettings().setLoadsImagesAutomatically(false);
    }
  }

}

MyWebView.java

package com.bzu.gxs.webview1;

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
import android.widget.Toast;

/**
 * Created by GXS on 2016/5/12.
 */
public class MyWebView extends WebView{

  private ProgressBar progressBar;
  private Context mContext;

  public MyWebView(Context context, AttributeSet attributeSet) {
    super(context,attributeSet);
    mContext = context;

    progressBar = (ProgressBar) LayoutInflater.from(context).inflate(R.layout.progressbar,null);
    progressBar.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,6,0,0));
    addView(progressBar);
    setWebChromeClient(new WebChromeClient());
    setWebViewClient(new WebViewClient(){
      @Override
      public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
        Toast.makeText(mContext,\"Gxs\"+description,Toast.LENGTH_SHORT).show();
      }
    });
    this.getSettings().setBuiltInZoomControls(true);
    this.getSettings().setUseWideViewPort(true);
  }

  public class WebChromeClient extends android.webkit.WebChromeClient {

    @Override
    public void onProgressChanged(WebView view, int newProgress) {
      if (newProgress == 100) {
        progressBar.setVisibility(GONE);
      } else {

        if (progressBar.getVisibility() == GONE)
          progressBar.setVisibility(VISIBLE);
          progressBar.setProgress(newProgress);
      }
      super.onProgressChanged(view,newProgress);

    }

  }

  @Override
  protected void onScrollChanged(int l, int t, int oldl, int oldt) {
    LayoutParams layoutParams = (LayoutParams) progressBar.getLayoutParams();
    layoutParams.x = l;
    layoutParams.y = t;
    progressBar.setLayoutParams(layoutParams);
    super.onScrollChanged(l, t, oldl, oldt);
  }
}

activity_main.xml

<?xml version=\"1.0\" encoding=\"utf-8\"?>
<RelativeLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"
  xmlns:tools=\"http://schemas.android.com/tools\"
  android:layout_width=\"match_parent\"
  android:layout_height=\"match_parent\"
  tools:context=\"com.bzu.gxs.webview1.MainActivity\">

  <com.bzu.gxs.webview1.MyWebView
    android:id=\"@+id/webView\"
    android:layout_width=\"match_parent\"
    android:layout_height=\"match_parent\"
    android:text=\"Hello World!\" />
</RelativeLayout>

progressbar.xml

<?xml version=\"1.0\" encoding=\"utf-8\"?>
<ProgressBar xmlns:android=\"http://schemas.android.com/apk/res/android\"
  android:id=\"@+id/ProgressBar\"
  style=\"?android:attr/progressBarStyleHorizontal\"
  android:layout_width=\"match_parent\"
  android:layout_height=\"wrap_content\"
  android:indeterminate=\"false\"
  android:maxHeight=\"10dip\"
  android:minHeight=\"10dip\"
  android:progress=\"50\"
  android:progressDrawable=\"@drawable/greenprogress\" />

注意: 需要在清单文件 AndroidManifest.xml 中加入：
<uses-permission android:name=\"android.permission.INTERNET\"/>

以上就是本文的全部内容，希望能给大家一个参考，也希望大家多多支持phpstudy。

本文地址：https://www.stayed.cn/item/14822

转载请注明出处。

本站部分内容来源于网络,如侵犯到您的权益,请 联系我

我的博客

人生若只如初见，何事秋风悲画扇。

我的标签

随笔档案