ご指摘お願いします。
java
1package com.android.internetbrowser; 2 3import android.app.AlertDialog; 4import android.app.DownloadManager; 5import android.content.DialogInterface; 6import android.content.Intent; 7import android.net.Uri; 8import android.os.Environment; 9import android.support.v7.app.AppCompatActivity; 10import android.os.Bundle; 11import android.text.SpannableStringBuilder; 12import android.util.Log; 13import android.view.KeyEvent; 14import android.view.View; 15import android.webkit.CookieManager; 16import android.webkit.DownloadListener; 17import android.webkit.URLUtil; 18import android.webkit.ValueCallback; 19import android.webkit.WebChromeClient; 20import android.webkit.WebView; 21import android.webkit.WebViewClient; 22import android.widget.Button; 23import android.widget.EditText; 24import android.widget.ProgressBar; 25import android.widget.TextView; 26import android.widget.Toast; 27 28public class MainActivity extends AppCompatActivity { 29 30 WebView webView = findViewById(R.id.webview); 31 final private int INTENT_CODE = 101; 32 private ValueCallback<Uri> mUploadMessage; 33 Button go = findViewById(R.id.go); 34 Button back = findViewById(R.id.back); 35 EditText urlbar = findViewById(R.id.urlbar); 36 ProgressBar progressBar = findViewById(R.id.progressBar); 37 38 39 @Override 40 protected void onCreate(Bundle savedInstanceState) { 41 super.onCreate(savedInstanceState); 42 setContentView(R.layout.activity_main); 43 if (savedInstanceState == null) { 44 webView.loadUrl("https://www.google.com"); 45 } 46 webView.getSettings().setJavaScriptEnabled(true); 47 webView.getSettings().setUseWideViewPort(true); 48 webView.getSettings().setLoadWithOverviewMode(true); 49 webView.setVerticalScrollbarOverlay(true); 50 webView.getSettings().setBuiltInZoomControls(true); 51 webView.getSettings().setDomStorageEnabled(true); 52 webView.setWebChromeClient(new WebChromeClient() { 53 // /Android 4.1以上 54 public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) { 55 mUploadMessage = uploadMsg; 56 Intent i = new Intent(Intent.ACTION_GET_CONTENT); 57 i.addCategory(Intent.CATEGORY_OPENABLE); 58 i.setType("image/*"); 59 startActivityForResult(Intent.createChooser(i, "画像選択"), INTENT_CODE); 60 } 61 public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) { 62 mUploadMessage = uploadMsg; 63 Intent i = new Intent(Intent.ACTION_GET_CONTENT); 64 i.addCategory(Intent.CATEGORY_OPENABLE); 65 i.setType("image/*"); 66 startActivityForResult(Intent.createChooser(i, "画像選択"), INTENT_CODE); 67 } 68 // Android 3.0未満 69 public void openFileChooser(ValueCallback<Uri> uploadMsg) { 70 openFileChooser(uploadMsg, "", ""); 71 } 72 }); 73 webView.setDownloadListener(new DownloadListener() { 74 75 @Override 76 public void onDownloadStart(String url, String userAgent, 77 String contentDisposition, String mimetype, 78 long contentLength) { 79 DownloadManager.Request request = new DownloadManager.Request( 80 Uri.parse(url)); 81 82 request.allowScanningByMediaScanner(); 83 request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); //Notify client once download is completed! 84 request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "Name of your downloadble file goes here, example: Mathematics II "); 85 DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE); 86 dm.enqueue(request); 87 Toast.makeText(getApplicationContext(), "Downloading File", //To notify the Client that the file is being downloaded 88 Toast.LENGTH_LONG).show(); 89 90 } 91 }); 92 go.setOnClickListener(new View.OnClickListener() { 93 @Override 94 public void onClick(View v) { 95 CharSequence url = urlbar.getText(); 96 if (url==""){ 97 }else{ 98 webView.loadUrl(url.toString()); 99 } 100 } 101 }); 102 back.setOnClickListener(new View.OnClickListener() { 103 @Override 104 public void onClick(View v) { 105 webView.goBack(); 106 } 107 }); 108 webView.setWebViewClient(new WebViewClient(){ 109 @Override 110 public void onPageFinished(WebView view,String url) { 111 url = webView.getUrl(); 112 urlbar.setText(url, TextView.BufferType.NORMAL); 113 } 114 }); 115 } 116 117 @Override 118 public boolean onKeyDown(int keyCode, KeyEvent event) { 119 if (event.getAction() == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_BACK) { 120 if (webView.canGoBack()) { 121 webView.goBack(); 122 } else { 123 AlertDialog.Builder alertDialog=new AlertDialog.Builder(this); 124 125 // ダイアログの設定 126 alertDialog.setTitle("確認"); //タイトル設定 127 alertDialog.setMessage("終了しますか?"); //内容(メッセージ)設定 128 129 // OK(肯定的な)ボタンの設定 130 alertDialog.setPositiveButton("はい", new DialogInterface.OnClickListener() { 131 public void onClick(DialogInterface dialog, int which) { 132 finishAndRemoveTask(); 133 } 134 }); 135 136 alertDialog.setNeutralButton("いいえ", new DialogInterface.OnClickListener() { 137 public void onClick(DialogInterface dialog, int which) { 138 } 139 }); 140 141 142 alertDialog.show(); 143 144 } 145 146 return true; 147 } 148 149 return super.onKeyDown(keyCode, event); 150 } 151 152 @Override 153 protected void onSaveInstanceState(Bundle outState) { 154 super.onSaveInstanceState(outState); 155 webView.saveState(outState); 156 } 157 158 @Override 159 protected void onRestoreInstanceState(Bundle savedInstanceState) { 160 super.onRestoreInstanceState(savedInstanceState); 161 webView.restoreState(savedInstanceState); 162 } 163 164 @Override 165 protected void onActivityResult(int requestCode, int resultCode, Intent intent) { 166 if (requestCode == INTENT_CODE) { 167 if (null == mUploadMessage) return; 168 169 Uri result = (intent == null || resultCode != RESULT_OK) ? null : intent.getData(); 170 mUploadMessage.onReceiveValue(result); 171 mUploadMessage = null; 172 } 173 } 174 private class MyWebViewClient extends WebViewClient { 175 @Override 176 public void onPageStarted(WebView view, String url, android.graphics.Bitmap favicon) { 177 super.onPageStarted(view, url, favicon); 178 progressBar.setVisibility(View.VISIBLE); // 読み込み開始時にプログレスバー表示 179 } 180 181 @Override 182 public void onPageFinished(WebView view, String url) { 183 super.onPageFinished(view, url); 184 progressBar.setVisibility(View.GONE); // 読み込み完了時にプログレスバー非表示 185 } 186 } 187 188 protected class MyWebChromeClient extends WebChromeClient { 189 public void onProgressChanged(WebView view, int progress) { 190 progressBar.setProgress(progress); // プログレスバーの進捗を更新 191 } 192 } 193}
logcat
12019-02-09 10:40:20.272 604-617/system_process D/Sensors: batch handle 6, but there is no batch sensor in genymotion 22019-02-09 10:40:20.279 604-827/system_process D/Sensors: batch handle 1, but there is no batch sensor in genymotion 32019-02-09 10:40:20.282 604-649/system_process D/PressureSensor: pressure event 1013.000000 42019-02-09 10:40:21.273 604-670/system_process W/WifiMode: WiredSSID, Invalid SupportedRates!!! 52019-02-09 10:40:21.273 604-672/system_process W/WifiMode: WiredSSID, Invalid SupportedRates!!! 62019-02-09 10:40:21.274 604-670/system_process W/WifiMode: WiredSSID, Invalid SupportedRates!!! 72019-02-09 10:40:21.777 604-2123/system_process D/Sensors: batch handle 1, but there is no batch sensor in genymotion 82019-02-09 10:41:43.460 604-618/system_process D/Sensors: batch handle 6, but there is no batch sensor in genymotion 92019-02-09 10:41:43.470 604-649/system_process D/PressureSensor: pressure event 1013.000000 10
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