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Code Issues Releases Wiki Activity

left and right swipes in message view.

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This commit is contained in:
Jesse Vincent 2009-11-19 06:03:59 +00:00
parent 59bc0ac467
commit 031c1e5358
1 changed files with 55 additions and 5 deletions
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60
src/com/android/email/activity/MessageView.java
View File

@ -29,12 +29,15 @@ import android.provider.Contacts;
import android.provider.Contacts.Intents;
import android.util.Config;
import android.util.Log;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.MotionEvent;
import android.view.View.OnClickListener;
import android.webkit.WebSettings;
import android.webkit.CacheManager;
@ -112,6 +115,12 @@ public class MessageView extends K9Activity
private String mNextMessageUid = null;
private String mPreviousMessageUid = null;
private static final float SWIPE_MIN_DISTANCE_DIP = 100.0f;
private static final float SWIPE_MAX_OFF_PATH_DIP = 250f;
private static final float SWIPE_THRESHOLD_VELOCITY_DIP = 200f;
private GestureDetector gestureDetector;
private DateFormat dateFormat = null;
private DateFormat timeFormat = null;
@ -419,6 +428,7 @@ public class MessageView extends K9Activity
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
requestWindowFeature(Window.FEATURE_NO_TITLE);
@ -434,6 +444,7 @@ public class MessageView extends K9Activity
mDateView = (TextView)findViewById(R.id.date);
mTimeView = (TextView)findViewById(R.id.time);
mMessageContentView = (WebView)findViewById(R.id.message_content);
mAttachments = (LinearLayout)findViewById(R.id.attachments);
mAttachmentIcon = findViewById(R.id.attachment);
mShowPicturesSection = findViewById(R.id.show_pictures_section);
@ -441,11 +452,8 @@ public class MessageView extends K9Activity
mFlagged = (CheckBox)findViewById(R.id.flagged);
mFlagged.setOnClickListener(new OnClickListener() {
public void onClick(View v) { onFlag(); } });
public void onClick(View v) { onFlag(); }
});
mMessageContentView.setVerticalScrollBarEnabled(true);
mMessageContentView.setVerticalScrollbarOverlay(true);
@ -546,6 +554,10 @@ public class MessageView extends K9Activity
next_scrolling = findViewById(R.id.next_scrolling);
previous_scrolling = findViewById(R.id.previous_scrolling);
// Gesture detection
gestureDetector = new GestureDetector(new MyGestureDetector());
boolean goNext = intent.getBooleanExtra(EXTRA_NEXT, false);
if (goNext) {
next.requestFocus();
@ -919,6 +931,12 @@ public class MessageView extends K9Activity
mShowPicturesSection.setVisibility(View.GONE);
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev){
super.dispatchTouchEvent(ev);
return gestureDetector.onTouchEvent(ev);
}
public void onClick(View view) {
switch (view.getId()) {
case R.id.from:
@ -1462,4 +1480,36 @@ public class MessageView extends K9Activity
}
}
class MyGestureDetector extends SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
// Convert the dips to pixels
final float mGestureScale = getResources().getDisplayMetrics().density;
int min_distance = (int) (SWIPE_MIN_DISTANCE_DIP * mGestureScale + 0.5f);
int min_velocity = (int) (SWIPE_THRESHOLD_VELOCITY_DIP * mGestureScale + 0.5f);
int max_off_path = (int) (SWIPE_MAX_OFF_PATH_DIP * mGestureScale + 0.5f);
try {
if (Math.abs(e1.getY() - e2.getY()) > max_off_path )
return false;
// right to left swipe
if(e1.getX() - e2.getX() > min_distance && Math.abs(velocityX) > min_velocity ) {
onPrevious();
} else if (e2.getX() - e1.getX() > min_distance && Math.abs(velocityX) > min_velocity) {
onNext();
}
} catch (Exception e) {
// nothing
}
return false;
}
}
}