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`
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
// 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; }
