问题
I'm implementing persistent search view like google play in my android application.here is my code.
public class NavigationDrawerActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private EditText searchView;
private ActionBarDrawerToggle toggle;
private DrawerLayout drawer;
private TextView appName;
private boolean isNavigationDrawerOpened;
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_navigation_drawer);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
CoordinatorLayout coordinatorLayout = (CoordinatorLayout)findViewById(R.id.mainLayout);
coordinatorLayout.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
if(isNavigationDrawerOpened){
hideSearchAndEnableAppName();
}
return false;
}
});
searchView = (EditText) findViewById(R.id.searchView);
appName = (TextView) findViewById(R.id.appName);
searchView.setVisibility(View.GONE);
drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
Toast.makeText(getApplicationContext(),"asdfasdfasdf",Toast.LENGTH_LONG).show();
return false;
}
});
drawer.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Toast.makeText(getApplicationContext(), "asdfasfasdf", Toast.LENGTH_SHORT).show();
}
});
toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
toggle.setToolbarNavigationClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Toast.makeText(NavigationDrawerActivity.this,"yayyy mani got it",Toast.LENGTH_LONG).show();
}
});
appName.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (!isNavigationDrawerOpened) {
searchView.setVisibility(View.VISIBLE);
searchView.requestFocus();
appName.setVisibility(View.GONE);
isNavigationDrawerOpened = true;
animateDrawerIndicator(true);
InputMethodManager inputMethodManager=(InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.toggleSoftInputFromWindow(view.getApplicationWindowToken(), InputMethodManager.SHOW_FORCED, 0);
}
}
});
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
private void hideSearchAndEnableAppName() {
animateDrawerIndicator(false);
isNavigationDrawerOpened = false;
searchView.setVisibility(View.GONE);
appName.setVisibility(View.VISIBLE);
View view = this.getCurrentFocus();
if (view != null) {
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
}
@Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
}
else if(isNavigationDrawerOpened){
hideSearchAndEnableAppName();
}else {
super.onBackPressed();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case android.R.id.home:
drawer.openDrawer(GravityCompat.START);
Toast.makeText(getApplicationContext(),"asdfasdf",Toast.LENGTH_SHORT).show();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
drawer.closeDrawer(GravityCompat.START);
return true;
}
public void animateDrawerIndicator(boolean shouldAnimate) {
ValueAnimator anim;
if(shouldAnimate) {
anim = ValueAnimator.ofFloat(0, 1);
} else {
anim = ValueAnimator.ofFloat(1, 0);
}
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
float slideOffset = (Float) valueAnimator.getAnimatedValue();
// You should get the drawer layout and
// toggler from your fragment to make the animation
toggle
.onDrawerSlide(drawer,
slideOffset);
}
});
anim.setInterpolator(new DecelerateInterpolator());
anim.setDuration(500);
anim.start();
}
}
Here everything is working fine, but when user has clicked on toolbar edittext(as per my code) i'm changing the hamburger icon to back button. Now if user clicks on back button, it should animate back to hamburger and edittext should be hidden(as per my requirement)
But, for that to happen i need to handle hamburger click. I have tried onClickListners on toggle,actionbartoggle etc.But in vain please help.
回答1:
Directly calling an ActionBarDrawerToggle's onDrawerSlide() method to animate the toggle is messy. A better option is to set a DrawerArrowDrawable as the toggle's Up indicator, and animate that ourselves instead, enabling and disabling the toggle's drawer indicator as necessary.
First, we declare a DrawerArrowDrawable field in the Activity.
private DrawerArrowDrawable searchToggle;
We then initialize it in the onCreate() method, set it as the Up indicator, and define the navigation OnClickListener.
searchToggle = new DrawerArrowDrawable(this);
toggle.setHomeAsUpIndicator(searchToggle);
toggle.setToolbarNavigationClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
hideSearchAndEnableAppName();
}
}
);
In the animateDrawerIndicator() method, we first disable the drawer indicator if we're showing the search EditText. This causes the toggle to revert to the Up indicator, which we'll then animate as necessary, switching back to the drawer indicator once the hiding animation is finished.
public void animateDrawerIndicator(final boolean shouldAnimate) {
ValueAnimator anim;
if (shouldAnimate) {
anim = ValueAnimator.ofFloat(0, 1);
// Show the Up indicator instead
// of the drawer indicator
toggle.setDrawerIndicatorEnabled(false);
}
else {
anim = ValueAnimator.ofFloat(1, 0);
}
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
float slideOffset = (Float) valueAnimator.getAnimatedValue();
// Animate our Drawable instead of the drawer's
searchToggle.setProgress(slideOffset);
// If we're hiding and have finished,
// re-enable the drawer indicator
if(!shouldAnimate && slideOffset == 0) {
toggle.setDrawerIndicatorEnabled(true);
}
}
});
anim.setInterpolator(new DecelerateInterpolator());
anim.setDuration(500);
anim.start();
}
回答2:
mDrawerToggle.setDrawerIndicatorEnabled(false); //disable "hamburger to arrow" drawable
mDrawerToggle.setHomeAsUpIndicator(R.drawable.menu); //set your own
mDrawerToggle.setToolbarNavigationClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(mDrawerLayout.isDrawerOpen(GravityCompat.START)){
mDrawerLayout.closeDrawer(GravityCompat.START);
}else {
mDrawerLayout.openDrawer(GravityCompat.START);
}
}
});
This is I used in my app when Change the hamburger icon with other when set icon than on click of that is not working because we need to use:
mDrawerToggle.setDrawerIndicatorEnabled(false);
来源：https://stackoverflow.com/questions/33981907/toolbar-hamburger-on-click-listener