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新增加载条动画，新增错误页面展示

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This commit is contained in:
方孝勇
2021-02-09 17:31:40 +08:00
parent 6b27df0eca
commit 5be007a9a9
10 changed files with 119 additions and 11 deletions
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74
app/src/main/java/chaoran/business/activity/MainActivity.java
View File

@ -4,12 +4,14 @@ import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.os.Build;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.view.View;
import android.webkit.*;
import android.widget.ProgressBar;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
@ -32,6 +34,7 @@ public class MainActivity extends AppCompatActivity implements ResultListener {
private WebView webView;
private Adapter adapter;
private VoiceEngine voiceEngine;
private ProgressBar progressBar;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
@ -65,15 +68,75 @@ public class MainActivity extends AppCompatActivity implements ResultListener {
@SuppressLint("JavascriptInterface")
private void initView() {
setTitle(R.string.title_activity_main);
//隐藏状态栏
getSupportActionBar().hide();
voiceEngine = new TekVoiceEngine(this);
webView = findViewById(R.id.webView);
progressBar = findViewById(R.id.loading);
webView.setWebViewClient(disposeView());
WebSettings settings = webView.getSettings();
settings.setJavaScriptEnabled(true);
settings.setDomStorageEnabled(true);
webView.addJavascriptInterface(voiceEngine, "VoiceEngine");
webView.loadUrl(url());
}
//配置客户端
private WebViewClient disposeView() {
return new WebViewClient() {
//页面开始加载时
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
progressBar.setVisibility(View.VISIBLE);
}
//页面加载完成时
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
progressBar.setVisibility(View.INVISIBLE);
}
//网络发生错误时,先展示错误界面，然后关闭加载条
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
switch (errorCode) {
case 404:
webView.loadUrl("file:///android_asset/error/404.html");
break;
case 500:
webView.loadUrl("file:///android_asset/error/500.html");
break;
default:
webView.loadUrl("file:///android_asset/error/index.html");
}
super.onReceivedError(view, errorCode, description, failingUrl);
progressBar.setVisibility(View.INVISIBLE);
}
//安卓6.0以上发生错误时回调
@Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
switch (error.getErrorCode()) {
case 404:
webView.loadUrl("file:///android_asset/error/404.html");
break;
case 500:
webView.loadUrl("file:///android_asset/error/500.html");
break;
default:
webView.loadUrl("file:///android_asset/error/index.html");
}
}
super.onReceivedError(view, request, error);
progressBar.setVisibility(View.INVISIBLE);
}
};
}
@Override
protected void onResume() {
//再次唤醒该页面时，重新加载页面和语音配置
@ -118,9 +181,12 @@ public class MainActivity extends AppCompatActivity implements ResultListener {
private String url() {
SharedPreferences spf = this.getSharedPreferences("crtech", Context.MODE_PRIVATE);
Integer port = spf.getInt("port", -1);
if (port == -1) {
return "file:///android_asset/demo/index.html";
}
String address = spf.getString("address", "").replaceAll(" ", "");
String path = spf.getString("path", "").replaceAll(" ", "");
Integer port = spf.getInt("port", -1);
String link = address.concat(":").concat(String.valueOf(port)).concat(path);
return link.startsWith("http://") ? link : "http://".concat(link);
}