주요 개념
- 웹뷰 요청 구분(POST / GET) / 요청시 선택적으로 쿠키삭제
실습 환경
- Winodws / Android Emulator(version 11, API30) / JDK
구현 결과
UI, log 변수 세팅
- 앱 뒤로가기와 웹뷰 내 뒤로가기 연결
public class MainActivity extends AppCompatActivity {
// ------------------------- VAR -------------------------- //
private static final String TAG = "MainActivityLog";
//Log.i(TAG, "POST DATA : " + position);
WebView wView; // webView
ProgressBar pBar; // loading
EditText urlEt; // input for url
EditText postKey; // input for key
EditText postValue; // input for value
CheckBox cBox; // checkbox for checking cookie reset
Button getButton; // button 'GET'
Button postButton; // button 'POST'
// --------------- DeviceControl ---------------------- //
@Override
public void onBackPressed() {
if(wView.canGoBack()){ // if IS BACK PAGE
wView.goBack(); // GO BACK
}else{
super.onBackPressed(); // IF NOT BACK PAGE -> EXIT APPLICATION
}
}
...
}
UI변수, 이벤트 초기화
- url 입력 input
- 웹뷰 view
- 쿠키삭제 checkbox
- post, get button
- 각 클릭, Enter 버튼 눌렸을 시 이벤트
// --------------------------- LOGIC ------------------------- //
@Override
protected void onCreate(Bundle savedInstanceState) {
// ---------------------- CREATE ------------------------ //
super.onCreate(savedInstanceState); //base data
setContentView(R.layout.activity_main); //base layout
// ------------------------ UI -------------------------- //
wView = findViewById(R.id.wView);
cBox = (CheckBox) findViewById(R.id.cookieClear);
pBar = findViewById(R.id.pBar);
urlEt = findViewById(R.id.urlEt);
postKey = (EditText) findViewById(R.id.postKey);
postValue = (EditText) findViewById(R.id.postValue);
getButton = (Button)findViewById(R.id.getButton);
postButton = (Button)findViewById(R.id.postButton);
// ---------------------- LISTENER ---------------------- //
//Enter Key (GET)
urlEt.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if(actionId == EditorInfo.IME_ACTION_DONE || event.getKeyCode() == KeyEvent.KEYCODE_ENTER){
wView.loadUrl("https://"+urlEt.getText().toString()+"");
}
return true;
}
});
//Post Button (POST)
postButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String postData = postKey.getText().toString() + '=' + postValue.getText().toString();
wView.postUrl("https://"+urlEt.getText().toString()+"", postData.getBytes());
}
});
//Get Button (GET)
getButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(cBox.isChecked()){
CookieManager.getInstance().removeAllCookies(null);
CookieManager.getInstance().flush();
}
wView.loadUrl("https://"+urlEt.getText().toString()+""); // connect url
}
});
...
}
웹뷰 config 함수, 실행
- 웹뷰 javascript 허용 등 세팅, history back 허용을 위한 작업..
- loading 바 숨김 및 초기 url 로 웹뷰 실행
// ------------------------ FUNCTION ------------------------ //
//conf webView
public void initWebView(){
// 1. Connect
wView.setWebViewClient(new WebViewClient(){
@Override // 1) Loading
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
pBar.setVisibility(View.VISIBLE); // Show Loading
}
@Override // 2) Start
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
pBar.setVisibility(View.GONE); // Hide Loading
}
@TargetApi(Build.VERSION_CODES.N)
@Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
/* 필요시 intent 설정
String url=request.getUrl().toString();
if (url != null && url.startsWith("intent://")) {
Log.i(TAG, url);
try {
Intent intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
Intent existPackage = getPackageManager().getLaunchIntentForPackage(intent.getPackage());
if (existPackage != null) {
startActivity(intent);
} else {
Intent marketIntent = new Intent(Intent.ACTION_VIEW);
marketIntent.setData(Uri.parse("market://details?id=" + intent.getPackage()));
startActivity(marketIntent);
}
return true;
} catch (Exception e) {
e.printStackTrace();
}
} else if (url != null && url.startsWith("market://")) {
try {
Intent intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
if (intent != null) {
startActivity(intent);
}
return true;
} catch (URISyntaxException e) {
e.printStackTrace();
}
}
view.loadUrl(url);
return true;
*/
String url=request.getUrl().toString();
if (request.isRedirect()){
view.loadUrl(url);
return true;
}
return false;
}
});
// 2. WebSettings
WebSettings ws = wView.getSettings();
ws.setJavaScriptEnabled(true); // Javascript permit
//wView.setWebContentsDebuggingEnabled(true);
ws.setUseWideViewPort(true);
ws.setLoadWithOverviewMode(true);
ws.setDomStorageEnabled(true);
ws.setJavaScriptCanOpenWindowsAutomatically(true);
ws.setSupportMultipleWindows(true);
// 3. start default url
wView.loadUrl("<URL>");
}
// ----------------------- EXEC ------------------------- //
//hide loading
pBar.setVisibility(View.GONE);
//init webView
initWebView();