这是我参与更文挑战的第1天，活动详情查看： 更文挑战

WebView加载不出Html5网页的解决方法

wvPrivatePolicy.setWebViewClient(new WebViewClient(){ // 在app内部加载网页
public boolean shouldOverrideUrlLoading(final WebView view, final String url) {
view.loadUrl(url);
return true;
}//重写点击动作,用webview载入
});
wvPrivatePolicy.loadUrl(“http://www.lyzhongxin.cn/m/view.php?aid=101”);
WebView webView = findViewById(R.id.myWebView);
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setUseWideViewPort(true);/设置此属性，可任意比例缩放
webSettings.setLoadWithOverviewMode(true);
webSettings.setDomStorageEnabled(true);//不添加可能加载H5的页面时候出现一片空白，对某些标签的不支持webSettings.setBlockNetworkImage(true);//设置显示图片`
复制代码

android studio 拾色器

以前的版本是可以箱ps一样直接用笔可以直接进行试色，新版的as是不能的，我么可以通过快捷键进行试色；

androidx ViewPager高度无法wrap_content问题

`package com.base.emergency_bureau.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;

import androidx.viewpager.widget.ViewPager;

/**

• @ProjectName: an-kefu
• @Package: com.base.emergency_bureau.view
• @ClassName: WrapContentHeightViewPager
• @Description: java类作用描述
• @Author: liys
• @CreateDate: 2021/5/31 17:26
• @UpdateUser: 更新者
• @UpdateDate: 2021/5/31 17:26
• @UpdateRemark: 更新说明
• @Version: 1.0

*/

public class WrapContentHeightViewPager extends ViewPager {

/**
 * Constructor
 *
 * @param context the context
 */
public WrapContentHeightViewPager(Context context) {
    super(context);
}

/**
 * Constructor
 *
 * @param context the context
 * @param attrs the attribute set
 */
public WrapContentHeightViewPager(Context context, AttributeSet attrs) {
    super(context, attrs);
}

//    @Override
复制代码

// protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// super.onMeasure(widthMeasureSpec, heightMeasureSpec);
//
// // find the first child view
// View view = getChildAt(0);
// if (view != null) {
// // measure the first child view with the specified measure spec
// view.measure(widthMeasureSpec, heightMeasureSpec);
// }
//
// setMeasuredDimension(getMeasuredWidth(), measureHeight(heightMeasureSpec, view));
// }
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

    int height = 0;
    for(int i = 0; i < getChildCount(); i++) {
        View child = getChildAt(i);
        child.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
        int h = child.getMeasuredHeight();
        if(h > height) height = h;
    }

    heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);

    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
/**
 * Determines the height of this view
 *
 * @param measureSpec A measureSpec packed into an int
 * @param view the base view with already measured height
 *
 * @return The height of the view, honoring constraints from measureSpec
 */
private int measureHeight(int measureSpec, View view) {
    int result = 0;
    int specMode = MeasureSpec.getMode(measureSpec);
    int specSize = MeasureSpec.getSize(measureSpec);

    if (specMode == MeasureSpec.EXACTLY) {
        result = specSize;
    } else {
        // set the height from the base view if available
        if (view != null) {
            result = view.getMeasuredHeight();
        }
        if (specMode == MeasureSpec.AT_MOST) {
            result = Math.min(result, specSize);
        }
    }
    return result;
}
复制代码

}
`