hello i have created the webview in mail activity of the android studio and now i am in scanner activity and when the APP scans any QR code having the link it just writs the link but what i want to do is to open the link in the web view already created in mail activity.
let me place my scanner file here
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scanner);
scannView = findViewById(R.id.scannerView);
codeScanner = new CodeScanner(this,scannView);
resultData = findViewById(R.id.resultsOfQr);
codeScanner.setDecodeCallback(new DecodeCallback() {
#Override
public void onDecoded(#NonNull final Result result) {
runOnUiThread(new Runnable() {
#Override
public void run() {
resultData.setText(result.getText());
// Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(result.getText()));
// startActivity(browserIntent);
Intent intent = new Intent(getBaseContext(), MainActivity.class);
intent.putExtra("myurl1", result.getText());
startActivity(intent);
}
});
}
});
scannView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
codeScanner.startPreview();
}
});
}
scannView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
codeScanner.startPreview();
}
});
}
WEBVIEW in Mailactivity
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
scanBtn = findViewById(R.id.scanBtn);
MywebView = (WebView) findViewById(R.id.view2);
WebSettings webSettings = MywebView.getSettings();
webSettings.setJavaScriptEnabled(true);
MywebView.loadUrl("https://google.com/APP/");
MywebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.contains("tel:")) {
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse(url));
startActivity(intent);
return true;
}else{
return false;
}
}
});
scanBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(getApplicationContext(),Scanner.class));
}
});
String myrul = getIntent().getStringExtra("myurl1");
runOnUiThread(new Runnable() {
#Override
public void run() {
MywebView.loadUrl(myrul);
}
});
}
Any idea how can i do this, any help is appreciated.
Thankx
In you CodeScanner Callback Load the WebView
runOnUiThread(new Runnable() {
#Override
public void run() {
resultData.setText(result.getText());
MywebView.loadUrl(result.getText());
}
});
Related
I'm using a click listener for both interstitial ads and intent to pass control to another activity:
Can anyone modify below code to use it together?
register_button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
}
}
});
register_button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent register_intent = new Intent(home.this,register.class);
startActivity(register_intent);
}
});
If this:
register_button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
}
Intent register_intent = new Intent(home.this, register.class);
startActivity(register_intent);
}
});
is not what you want/doesn't work, then your flow is incorrect.
I have <> and <> buttons in my quiz app, but if the user is in the first question since there is no previous question there should be toast which says "this is the first question" and the same with <>button.
Here is my code for buttons (which is incorrect):
mNextButton = (Button)findViewById(R.id.next_button);
mNextButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mCurreentIndex=0;
if (mCurreentIndex>mQuestionBank.length){
Toast.makeText(QuizActivity.this,R.string.last_question,Toast.LENGTH_LONG).show();
}
updateQuestion();
}
});
mPreviousButton = (Button)findViewById(R.id.previous_button);
mPreviousButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mCurreentIndex--;
if (mCurreentIndex<mQuestionBank.length){
Toast.makeText(QuizActivity.this, R.string.first_question,Toast.LENGTH_LONG).show();
}
updateQuestion();
}
});
mNextButton = (Button)findViewById(R.id.next_button);
mNextButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//mCurreentIndex=0;// not valid
if (mCurreentIndex>=mQuestionBank.length){
Toast.makeText(QuizActivity.this,getString(R.string.last_question),Toast.LENGTH_LONG).show();
return;
}
mCurreentIndex++;
updateQuestion();
}
});
mPreviousButton = (Button)findViewById(R.id.previous_button);
mPreviousButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mCurreentIndex<=0){
Toast.makeText(QuizActivity.this, getString(R.string.first_question),Toast.LENGTH_LONG).show();
return;
}
mCurreentIndex--;
updateQuestion();
}
});
Try this
mPreviousButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mCurreentIndex<=0){
Toast.makeText(QuizActivity.this, R.string.first_question,Toast.LENGTH_LONG).show();
}else{
mCurreentIndex--;
updateQuestion();
}
}
});
mNextButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mCurreentIndex>=mQuestionBank.length){
Toast.makeText(QuizActivity.this,getString(R.string.last_question),Toast.LENGTH_LONG).show();
}else{
mCurreentIndex++;
updateQuestion();
}
}
});
You have just display toast message but next statement also execute after displaying toast. For your solution you need to use "return" or if..else block.
mNextButton = (Button)findViewById(R.id.next_button);
mNextButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mCurreentIndex=0;
if (mCurreentIndex>mQuestionBank.length){
Toast.makeText(QuizActivity.this,R.string.last_question,Toast.LENGTH_LONG).show();
return;
}
updateQuestion();
}
});
mPreviousButton = (Button)findViewById(R.id.previous_button);
mPreviousButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mCurreentIndex--;
if (mCurreentIndex<mQuestionBank.length){
Toast.makeText(QuizActivity.this, R.string.first_question,Toast.LENGTH_LONG).show();
return;
}
updateQuestion();
}
});
//Previous Button Condition;
mCurreentIndex--;
if (mCurreentIndex<mQuestionBank.length && mCurreentIndex>=0){
Toast.makeText(QuizActivity.this, R.string.first_question,Toast.LENGTH_LONG).show();
}
else {
Toast.makeText(QuizActivity.this, "This is first question",Toast.LENGTH_LONG).show();
mCurreentIndex++;
}
//Next Button Condition;
mCurreentIndex++;
if (mCurreentIndex<mQuestionBank.length){
Toast.makeText(QuizActivity.this,R.string.last_question,Toast.LENGTH_LONG).show();
}
else {
Toast.makeText(QuizActivity.this, "This is last Question",Toast.LENGTH_LONG).show();
mCurreentIndex--;
}
public class QuizActivity extends AppCompatActivity {
private static final String TAG = "QuizActivity";
private static final String KEY_INDEX = "index";
private Button mTrueButton;
private Button mFalseButton;
private Button mNextButton;
private Button mPreviousButton;
private TextView mQuestionTextView;
private Question[] mQuestionBank = new Question[]{
new Question(R.string.question_australia, true),
new Question(R.string.question_oceans, true),
new Question(R.string.question_mideast, false),
new Question(R.string.question_africa, false),
new Question(R.string.question_americas, true),
new Question(R.string.question_asia, true),
};
private int mCurreentIndex = 0;
private boolean[] QuestionsAnswered = new boolean[mQuestionBank.length];
#Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(TAG,"onCreate(Bundle) called");
setContentView(R.layout.activity_quiz);
if (savedInstanceState != null) {
mCurreentIndex =savedInstanceState.getInt(KEY_INDEX, 0);
QuestionsAnswered = savedInstanceState.getBooleanArray(KEY_INDEX);
}
mQuestionTextView = (TextView)findViewById(R.id.question_text_view);
mTrueButton = (Button)findViewById(R.id.true_button);
mTrueButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
checkAnswer(true);
}
});
mFalseButton = (Button)findViewById(R.id.false_button);
mFalseButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
checkAnswer(false);
}
});
mNextButton = (Button)findViewById(R.id.next_button);
mNextButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mCurreentIndex = (mCurreentIndex+mQuestionBank.length +1) % mQuestionBank.length;
updateQuestion();
}
});
mPreviousButton = (Button)findViewById(R.id.previous_button);
mPreviousButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mCurreentIndex= (mCurreentIndex+ mQuestionBank.length - 1) % mQuestionBank.length;
updateQuestion();
}
});
updateQuestion();
}
#Override
protected void onStart() {
super.onStart();
Log.d(TAG, "onStart() called");
}
#Override
protected void onResume() {
super.onResume();
Log.d(TAG, "onResume() called");
}
#Override
protected void onPause() {
super.onPause();
Log.d(TAG, "onPause() called");
}
#Override
protected void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
savedInstanceState.putInt(KEY_INDEX,mCurreentIndex);
savedInstanceState.putBooleanArray(KEY_INDEX,QuestionsAnswered);
}
#Override
protected void onStop() {
super.onStop();
Log.d(TAG, "onStop() called");
}
#Override
protected void onDestroy() {
super.onDestroy();
Log.d(TAG, "onDestroy() called");
}
private void updateQuestion(){
int question = mQuestionBank[mCurreentIndex].getTextResId();
mQuestionTextView.setText(question);
mTrueButton.setEnabled(!QuestionsAnswered[mCurreentIndex]);
mFalseButton.setEnabled(!QuestionsAnswered[mCurreentIndex]);
}
private void checkAnswer(boolean userPressedTrue) {
boolean answerIsTrue = mQuestionBank[mCurreentIndex].isAnswerTrue();
int messageResId = 0;
if (userPressedTrue == answerIsTrue) {
messageResId = R.string.correct_toast;
} else {
messageResId = R.string.incorrect_toast;
}
Toast.makeText(this, messageResId, Toast.LENGTH_LONG).show();
QuestionsAnswered[mCurreentIndex] = true;
mTrueButton.setEnabled(false);
mFalseButton.setEnabled(false);
}
}
I want to implement WebView in a such way that it should get instantiated in one Activity (along with loading of html) it should not be visible on first page and only webview is visible in another activity. I have tried following way, but unable to achieve it, following is my MainActivity
public class MainActivity extends Activity {
private WebView webView = null;
private Button startAppBtn = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
createWebView();
startAppBtn = (Button) findViewById(R.id.button1);
startAppBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(context, SecondActivity.class);
Bundle bundle = new Bundle();
intent.putExtra("state",bundle);
webView.saveState(bundle);
startActivity(intent);
}
});
}
public void createWebView(){
setWebView((WebView) findViewById(R.id.webview1));
getWebView().getSettings().setJavaScriptEnabled(true);
getWebView().getSettings().setDatabaseEnabled(true);
getWebView().getSettings().setLoadWithOverviewMode(true);
getWebView().setScrollBarStyle(WebView.SCROLLBARS_INSIDE_OVERLAY);
getWebView().setScrollbarFadingEnabled(false);
getWebView().loadUrl("file:///android_asset/My.html");
getWebView().setVisibility(View.GONE);
}
public WebView getWebView() {
return webView;
}
public void setWebView(WebView webView) {
this.webView = webView;
}
}
and following is SecondActivity,
public class SecondActivity extends Activity{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second_layout);
Intent intent = getIntent();
WebView webview = (WebView) findViewById(R.id.webview1);//at this line I am getting exception, I think because webview is in activity_main layout.
webview.restoreState((Bundle) intent.getParcelableExtra("state"));
webview.getSettings().setJavaScriptEnabled(true);
webview.setVisibility(View.VISIBLE);
}
}
I am new to android world, struggling on it please anybody can help me to fix this issue.
Hope this helps
First Activity
startAppBtn = (Button) findViewById(R.id.button1);
startAppBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(this, SecondActivity.class);
Bundle bundle = new Bundle();
bundle.putString("websiteURL", "file:///android_asset/My.html");
intent.putExtras(bundle);
startActivity(intent);
}
});
Second Activity
String sWebsite;
Bundle bundle = getIntent().getExtras();
if (bundle != null)
{
sWebsite = bundle.getString("websiteURL");
}
else if (bundle== null)
{
System.out.println("Null");
}
WebView webView = (WebView) findViewById(R.id.webview1);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl(sWebsite);
webView.setWebViewClient(new WebViewClient()
{
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
return false;
}
});
I want to start the Main2Activity's task(Loading the WebView) when button is pressed but not to show the Main2Activity's Screen until onPageFinished() is called. i had some ideas to get this by Intents however it seems doesn't work.
Here my code :
MainActivity.java :
public class MainActivity extends AppCompatActivity {
Handler handler = new Handler(){
#Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
Intent intent = new Intent(MainActivity.this,Main2Activity.class);
startActivity(intent);
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button button = (Button)findViewById(R.id.Button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final Runnable runnable = new Runnable() {
#Override
public void run() {
handler.sendEmptyMessage(0);
}
};
Thread thread = new Thread(runnable);
thread.start();
}
}
);
}
}
Main2Activity.java :
public class Main2Activity extends AppCompatActivity {
Intent intent;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
final WebView webView = (WebView)findViewById(R.id.webview);
webView.setWebViewClient(new WebViewClient() {
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(webView, url);
intent.putExtra("DONE",1);
// Toast.makeText(getApplicationContext(), "Done!",
//Toast.LENGTH_SHORT).show();
}
});
webView.loadUrl("file:///android_asset/2.2.html");
}
}
is this possible using Intents or i have to do this with some other techniques?
How can i Achieve this goal ?
Thanks All.
I think you should directly go to Main2Activity on button click, without calling any thread in MainActivity.
Then in Main2Activity show an image or something until onPageFinished() is called.
I have already scanned all of the related questons&answers here, but I still couldn't find the solution.
the service class file:
public class otser extends Service {
private WindowManager windowManager;
private ImageView chatHead;
#Override public IBinder onBind(Intent intent) {
return null;
}
#Override public void onCreate() {
super.onCreate();
windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
chatHead = new ImageView(this);
chatHead.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
FileObserver observer = new FileObserver(android.os.Environment.getExternalStorageDirectory().toString() + "/Pictures/Screenshots") {
#Override
public void onEvent(int event, String file) {
event &= FileObserver.ALL_EVENTS;
if(event == FileObserver.CREATE){
Toast.makeText(getApplicationContext(), "screenshot taken",
Toast.LENGTH_LONG).show();
}
}
};
observer.startWatching(); // start the observer
Toast.makeText(getApplicationContext(), "service: OK",
Toast.LENGTH_SHORT).show();
}}
According to other posts, I double checked the path, via creating a file programatically, it does exist, and correct.
The Activity class:
public class Home extends Activity {
Button showChatHead;
Button stopService;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
showChatHead = (Button) findViewById(R.id.gomb);
stopService= (Button) findViewById(R.id.gomb2);
showChatHead.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(getApplicationContext(), ChatHeadService.class);
startService(i);
}
});
stopService.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(getApplicationContext(), ChatHeadService.class);
stopService(i);
}
});
}}
The service class linked well, the last Toast message pops up, as a conclusion only the observer is being skipped.
Any ideas?
Thanks in advance!
newer release:
FileObserver fileObserver = new FileObserver(android.os.Environment.getExternalStorageDirectory().toString() + "/Pictures/Screenshots") {
#Override
public void onEvent(int event, String path) {
Toast.makeText(getApplicationContext(), "method entered", Toast.LENGTH_SHORT).show();
if (event == FileObserver.CREATE) {
handler.post(new Runnable() {
#Override
public void run() {
Toast.makeText(getApplicationContext(), "File created", Toast.LENGTH_SHORT).show();
}
});
}
}
};
fileObserver.startWatching();
The onEvent method is not entered, the "method entered" Toast didn't appear.
in documentation of the onEvent-Method is mentioned, that it will run at another thread and you should consider this. using a handler, the Toast message should appear, like this:
private Handler handler = new Handler();
#Override
public void onCreate() {
fileObserver = new FileObserver("path") {
#Override
public void onEvent(int event, String path) {
if (event == FileObserver.CREATE) {
handler.post(new Runnable() {
#Override
public void run() {
Toast.makeText(FileWatcher.this, "File created", Toast.LENGTH_SHORT).show();
}
});
}
}
};
fileObserver.startWatching();