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Add error connection activity with native layout and spinner for Weview
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77 changes: 77 additions & 0 deletions
77
src/main/java/org/medicmobile/webapp/mobile/ClosableAppActivity.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| package org.medicmobile.webapp.mobile; | ||
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| import android.app.Activity; | ||
| import android.content.Intent; | ||
| import android.os.Bundle; | ||
| import android.os.Handler; | ||
| import android.widget.Toast; | ||
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| /** | ||
| * Base class for activities that when back is pressed | ||
| * two times the app closes. | ||
| * | ||
| * When the user press back for the first time, a message | ||
| * defined in the `R.string.backToExit` string is shown | ||
| * explaining that it has to press back one more time. The | ||
| * message can be customized in the intent with the extended | ||
| * data "backPressedMessage" | ||
| * (calling `intent.putExtra("backPressedMessage", "...")`). | ||
| * | ||
| * Also the opposite action can be configured: the app | ||
| * not closing nor the activity when the user press | ||
| * back one or more times: to do so the `Intent` used to launch | ||
| * the activity needs to be set with the extended data "isClosable" | ||
| * to `false` (calling `intent.putExtra("isClosable", false)`). | ||
| * No message is shown to the user when back is pressed unless | ||
| * the extended data "backPressedMessage" is also set with the | ||
| * desired message. | ||
| */ | ||
| public abstract class ClosableAppActivity extends Activity { | ||
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| private static final int WAIT_MILLIS = 2 * 1000; // Back need to be pressed 2 times before this time | ||
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| private boolean closeableApp = true; // if true, back pressing 2 times close the app | ||
| private boolean backToExitPressedOnce = false; // whether back was pressed the last WAIT_MILLIS | ||
| private String backPressedMessage = null; // Customized message to show when back is pressed | ||
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| @Override public void onBackPressed() { | ||
| if (closeableApp) { | ||
| if (backToExitPressedOnce) { | ||
| finishAffinity(); | ||
| return; | ||
| } | ||
| backToExitPressedOnce = true; | ||
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| toastMessage(); | ||
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| new Handler().postDelayed(new Runnable() { | ||
| @Override public void run() { | ||
| // After WAIT_MILLIS clean the back pressed history | ||
| backToExitPressedOnce = false; | ||
| } | ||
| }, WAIT_MILLIS); | ||
| } else { | ||
| // Back pressed events won't close the app nor close the activity | ||
| toastMessage(); | ||
| } | ||
| } | ||
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| @Override public void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| Intent i = getIntent(); | ||
| closeableApp = i.getBooleanExtra("isClosable", true); // not closable (the default value is true) | ||
| backPressedMessage = i.getStringExtra("backPressedMessage"); // default null | ||
| } | ||
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| private void toastMessage() { | ||
| if (closeableApp) { | ||
| if (backPressedMessage != null) { | ||
| Toast.makeText(this, backPressedMessage, Toast.LENGTH_SHORT).show(); | ||
| } else { | ||
| Toast.makeText(this, R.string.backToExit, Toast.LENGTH_SHORT).show(); | ||
| } | ||
| } else if (backPressedMessage != null) { | ||
| Toast.makeText(this, backPressedMessage, Toast.LENGTH_SHORT).show(); | ||
| } | ||
| } | ||
| } |
86 changes: 86 additions & 0 deletions
86
src/main/java/org/medicmobile/webapp/mobile/ConnectionErrorActivity.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,86 @@ | ||
| package org.medicmobile.webapp.mobile; | ||
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| import android.content.BroadcastReceiver; | ||
| import android.content.Context; | ||
| import android.content.Intent; | ||
| import android.content.IntentFilter; | ||
| import android.os.Bundle; | ||
| import android.view.View; | ||
| import android.view.Window; | ||
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| import static android.view.View.VISIBLE; | ||
| import static android.view.View.GONE; | ||
| import static org.medicmobile.webapp.mobile.MedicLog.trace; | ||
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| /** | ||
| * Activity displayed to catch connection errors and give the user | ||
| * the chance to retry. | ||
| * | ||
| * NOTE: it only catch connection errors when the web container | ||
| * tries to load a new page or reload the current one. | ||
| * Errors when the webapp does ajax calls are caught by | ||
| * the webapp itself. | ||
| */ | ||
| public class ConnectionErrorActivity extends ClosableAppActivity { | ||
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| @Override public void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| this.requestWindowFeature(Window.FEATURE_NO_TITLE); | ||
| setContentView(R.layout.connection_error); | ||
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| // If a page load finished and the activity is still spinning -> close | ||
| BroadcastReceiver broadcastReceiver = new BroadcastReceiver() { | ||
| @Override public void onReceive(Context context, Intent intent) { | ||
| if ("onPageFinished".equals(intent.getAction()) && isSpinning()) { | ||
| unregisterReceiver(this); | ||
| finish(); | ||
| } | ||
| } | ||
| }; | ||
| registerReceiver(broadcastReceiver, new IntentFilter("onPageFinished")); | ||
| } | ||
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| @Override protected void onNewIntent(Intent intent) { | ||
| showMessageLayout(); | ||
| } | ||
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| public void onClickRetry(View view) { | ||
| trace(this, "onClickRetry()"); | ||
| sendBroadcast(new Intent("retryConnection")); | ||
| showSpinnerLayout(); | ||
| } | ||
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| // Toggle layout components: hide the message layout | ||
| // and display the spinner layout | ||
| private void showSpinnerLayout() { | ||
| setLayoutsVisibility(GONE, VISIBLE); | ||
| } | ||
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| // Toggle layout components: hide the spinner layout | ||
| // and display the message layout | ||
| private void showMessageLayout() { | ||
| setLayoutsVisibility(VISIBLE, GONE); | ||
| } | ||
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| // Set visibility for the Internet connection error layout | ||
| // and the spinner layout | ||
| private void setLayoutsVisibility(int messageLayoutVisibility, int spinnerVisibility) { | ||
| View messageLayout = getMessageLayout(); | ||
| messageLayout.setVisibility(messageLayoutVisibility); | ||
| View spinnerLayout = getSpinnerLayout(); | ||
| spinnerLayout.setVisibility(spinnerVisibility); | ||
| } | ||
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| private View getMessageLayout() { | ||
| return findViewById(R.id.connErrorMessageLayout); | ||
| } | ||
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| private View getSpinnerLayout() { | ||
| return findViewById(R.id.connErrorSpinnerLayout); | ||
| } | ||
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| private boolean isSpinning() { | ||
| return getSpinnerLayout().getVisibility() == VISIBLE; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" | ||
| android:layout_width="fill_parent" | ||
| android:layout_height="wrap_content" | ||
| android:orientation="vertical" | ||
| android:paddingLeft="16dp" | ||
| android:paddingRight="16dp"> | ||
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| <RelativeLayout | ||
| android:id="@+id/connErrorMessageLayout" | ||
| android:layout_width="fill_parent" | ||
| android:layout_height="wrap_content" | ||
| android:orientation="vertical"> | ||
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| <TextView | ||
| android:id="@+id/connErrorTitleText" | ||
| style="@android:style/Widget.DeviceDefault.Light.TextView" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:layout_marginTop="140dp" | ||
| android:padding="20dp" | ||
| android:text="@string/connErrorTitle" | ||
| android:textSize="20sp" | ||
| android:textStyle="bold" /> | ||
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| <TextView | ||
| android:id="@+id/connErrorMessageText" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| android:layout_below="@+id/connErrorTitleText" | ||
| android:padding="20dp" | ||
| android:text="@string/connErrorMessage" | ||
| android:textSize="18sp" /> | ||
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| <LinearLayout | ||
| android:id="@+id/connErrorButtons" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:layout_below="@+id/connErrorMessageText" | ||
| android:layout_marginTop="20dp" | ||
| android:paddingLeft="20dp" | ||
| android:paddingRight="20dp" | ||
| android:paddingBottom="20dp"> | ||
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| <View | ||
| android:layout_width="0dp" | ||
| android:layout_height="0dp" | ||
| android:layout_weight="1" /> | ||
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| <Button | ||
| android:id="@+id/connErrorRetry" | ||
| style="@style/Widget.AppCompat.Button.Borderless.Blue" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| android:onClick="onClickRetry" | ||
| android:text="@string/connErrorRetry" /> | ||
| </LinearLayout> | ||
| </RelativeLayout> | ||
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| <RelativeLayout | ||
| android:id="@+id/connErrorSpinnerLayout" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="match_parent" | ||
| android:visibility="gone"> | ||
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| <ProgressBar | ||
| android:id="@+id/progressBarIcon" | ||
| style="?android:attr/progressBarStyleLarge" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:layout_centerVertical="true" | ||
| android:contentDescription="@string/loadingIconDescription" | ||
| android:padding="20dp" /> | ||
| </RelativeLayout> | ||
|
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| </RelativeLayout> |
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