我正在我的android应用程序中实现像google play这样的持久搜索视图。这是我的代码。
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();
}
}
这里一切正常，但是当用户单击工具栏编辑文本（根据我的代码）时，我将汉堡包图标更改为后退按钮。现在如果用户点击后退按钮，它应该动画回到汉堡包并且应该隐藏edittext（根据我的要求）
但是，要做到这一点，我需要处理汉堡点击。我已经尝试过 onClickListners on toggle、actionbartoggle 等。但徒劳无功，请帮忙。