我有一个主菜单，其中包含许多按钮。如果我按下任何按钮，它将在2/3秒内完成任何操作，而不是加载活动。加载的活动包含一个包含6页或更多页面的viewpager。有人知道我如何提高按钮的性能吗？
这是我的代码：
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private ImageButton button_01, button_02, button_03, button_04, button_05, button_06, button_07, button_08, button_09, button_10, button_11, button_12, button_13;
private ListView mDrawerList;
private ArrayAdapter<String> mAdapter;
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private String mActivityTitle;
public static KapitelAnlage kapitelAnlage;
public static SharedPreferences pref;
public static SharedPreferences.Editor editor;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pref = getApplicationContext().getSharedPreferences("MyPref", 0); // 0 - for private mode
editor = pref.edit();
kapitelAnlage = new KapitelAnlage();
button_01 = (ImageButton) findViewById(R.id.button_01);
button_01.setOnClickListener(this);
button_02 = (ImageButton) findViewById(R.id.button_02);
button_02.setOnClickListener(this);
button_03 = (ImageButton) findViewById(R.id.button_03);
button_03.setOnClickListener(this);
button_04 = (ImageButton) findViewById(R.id.button_04);
button_04.setOnClickListener(this);
//button_04.setEnabled(false);
//button_04.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
button_05 = (ImageButton) findViewById(R.id.button_05);
button_05.setOnClickListener(this);
//button_05.setEnabled(false);
//button_05.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
button_06 = (ImageButton) findViewById(R.id.button_06);
button_06.setOnClickListener(this);
//button_06.setEnabled(false);
//button_06.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
button_07 = (ImageButton) findViewById(R.id.button_07);
button_07.setOnClickListener(this);
//button_07.setEnabled(false);
//button_07.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
button_08 = (ImageButton) findViewById(R.id.button_08);
button_08.setOnClickListener(this);
//button_08.setEnabled(false);
//button_08.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
button_09 = (ImageButton) findViewById(R.id.button_09);
button_09.setOnClickListener(this);
//button_08.setEnabled(false);
//button_08.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
button_10 = (ImageButton) findViewById(R.id.button_10);
button_10.setOnClickListener(this);
//button_08.setEnabled(false);
//button_08.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
button_11 = (ImageButton) findViewById(R.id.button_11);
button_11.setOnClickListener(this);
//button_08.setEnabled(false);
//button_08.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
button_12 = (ImageButton) findViewById(R.id.button_12);
button_12.setOnClickListener(this);
//button_08.setEnabled(false);
//button_08.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
button_13 = (ImageButton) findViewById(R.id.button_13);
button_13.setOnClickListener(this);
//button_08.setEnabled(false);
//button_08.getBackground().setColorFilter(Color.GRAY, PorterDuff.Mode.MULTIPLY);
buttonAktiviere();
mDrawerList = (ListView) findViewById(R.id.navList);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mActivityTitle = getTitle().toString();
addDrawerItems();
setupDrawer();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
}
@Override
public void onClick(View v) {
if (v == button_01) {
Intent intent = new Intent(this, Kapitel_01.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_01);
} else if (v == button_02) {
Intent intent = new Intent(this, Kapitel_02.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_02);
} else if (v == button_03) {
Intent intent = new Intent(this, Kapitel_03.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_03);
} else if (v == button_04) {
Intent intent = new Intent(this, Kapitel_04.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_04);
} else if (v == button_05) {
Intent intent = new Intent(this, Kapitel_05.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_05);
} else if (v == button_06) {
Intent intent = new Intent(this, Kapitel_06.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_06);
} else if (v == button_07) {
Intent intent = new Intent(this, Kapitel_07.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_07);
} else if (v == button_08) {
Intent intent = new Intent(this, Kapitel_08.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_08);
} else if (v == button_09) {
Intent intent = new Intent(this, Kapitel_09.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_09);
} else if (v == button_10) {
Intent intent = new Intent(this, Kapitel_10.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_10);
} else if (v == button_11) {
Intent intent = new Intent(this, Kapitel_11.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_11);
} else if (v == button_12) {
Intent intent = new Intent(this, Kapitel_12.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_12);
} else if (v == button_13) {
Intent intent = new Intent(this, Kapitel_13.class);
this.startActivity(intent);
kapitelAnlage.setKapitel(Kapitel.Kapitel_13);
}
}
private void addDrawerItems() {
String[] osArray = {"Aktien", "Renten", "Immobilien", "Blog", "Kontakt"};
mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, osArray);
mDrawerList.setAdapter(mAdapter);
mDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this, "Time for an upgrade!", Toast.LENGTH_SHORT).show();
}
});
}
private void setupDrawer() {
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.string.navigation_drawer_open, R.string.navigation_drawer_close) {
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
getSupportActionBar().setTitle("Navigation!");
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
getSupportActionBar().setTitle(mActivityTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
};
mDrawerToggle.setDrawerIndicatorEnabled(true);
mDrawerLayout.setDrawerListener(mDrawerToggle);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.optionsmenu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
// Activate the navigation drawer toggle
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
} else if (item.getItemId() == R.id.item2) {
Intent intent = new Intent(this, Impressum.class);
this.startActivity(intent);
}
return super.onOptionsItemSelected(item);
}
public void buttonAktiviere() {
if (checkKap("Kap03")) {
buttonEnable(button_04);
Log.d("Meine APP", "Kapitel 4 ist freigeschaltet");
}
}
public boolean checkKap(String kap) {
boolean check = pref.getBoolean(kap, false);
if (check) {
return true;
} else return false;
}
public void buttonEnable(ImageButton btn) {
btn.getBackground().setColorFilter(null);
btn.setEnabled(true);
}
}
和
public class Kapitel_01 extends Activity {
private ViewPager viewPager;
private ViewPagerAdapter viewPagerAdapter;
private LinearLayout dotsLayout;
private TextView[] dots;
private int[] layouts;
private Button btnNext;
private ImageView image_1_a, image_1_b;
private WebView header_1_a,text_1_a;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_slider);
layouts = new int[]{
R.layout.slide_type_a,
R.layout.slide_type_a,
R.layout.slide_type_c,
R.layout.slide_type_a,
R.layout.slide_type_a,
R.layout.slide_type_b,
R.layout.slide_type_b,
R.layout.slide_type_b,
R.layout.slide_type_b,
R.layout.startquiz_layout};
viewPager = (ViewPager) findViewById(R.id.view_pager);
viewPager.setOffscreenPageLimit(Setting.getOffscreenSet(layouts.length));
dotsLayout = (LinearLayout) findViewById(R.id.layoutDots);
btnNext = (Button) findViewById(R.id.btn_next);
// adding bottom dots
addBottomDots(0);
viewPagerAdapter = new ViewPagerAdapter();
viewPager.setAdapter(viewPagerAdapter);
viewPager.addOnPageChangeListener(viewPagerPageChangeListener);
}
public void btnQuizStart(View v) {
Intent intent = new Intent(this, Quiz.class);
image_1_a = (ImageView) findViewById(R.id.image_slide_type_a_1);
this.startActivity(intent);
}
public void btnNextClick(View v) {
// checking for last page
// if last page home screen will be launched
int current = getItem(1);
if (current < layouts.length) {
// move to next screen
viewPager.setCurrentItem(current);
} else {
launchHomeScreen();
}
}
ViewPager.OnPageChangeListener viewPagerPageChangeListener = new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
addBottomDots(position);
// changing the next button text 'NEXT' / 'GOT IT'
if (position == layouts.length - 1) {
// last page. make button text to GOT IT
btnNext.setText(getString(R.string.start));
} else {
// still pages are left
btnNext.setText(getString(R.string.next));
}
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
};
private void addBottomDots(int currentPage) {
dots = new TextView[layouts.length];
dotsLayout.removeAllViews();
for (int i = 0; i < dots.length; i++) {
dots[i] = new TextView(this);
dots[i].setText(Html.fromHtml("•"));
dots[i].setTextSize(35);
dots[i].setTextColor(getResources().getColor(R.color.inactive_dots));
dotsLayout.addView(dots[i]);
}
if (dots.length > 0)
dots[currentPage].setTextColor(getResources().getColor(R.color.active_dots));
}
private int getItem(int i) {
return viewPager.getCurrentItem() + i;
}
private void launchHomeScreen() {
startActivity(new Intent(this, MainActivity.class));
finish();
}
public class ViewPagerAdapter extends PagerAdapter {
private LayoutInflater layoutInflater;
public ViewPagerAdapter() {
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
HTMLPre preparer = new HTMLPre();
String font = "SourceSansPro-Regular";
View one_one = layoutInflater.inflate(R.layout.slide_type_a, container, false);
final LinearLayout layout = (LinearLayout) one_one.findViewById(R.id.loadscreen);
layout.setVisibility(View.VISIBLE);
dotsLayout = (LinearLayout) findViewById(R.id.layoutDots);
dotsLayout.setVisibility(View.GONE);
WebView header_1_a = (WebView) one_one.findViewById(R.id.header_slide_type_a_1);
preparer.loadHTLMContentHeader(getString(R.string.Historie9_header), header_1_a, font);
image_1_a = (ImageView) one_one.findViewById(R.id.image_slide_type_a_1);
image_1_a.setImageResource(R.drawable.picture_kap01_01);
WebView text_1_a = (WebView) one_one.findViewById(R.id.text_slide_type_a_1);
preparer.loadHTLMContentText(getString(R.string.Historie9), text_1_a, font);
View one = layoutInflater.inflate(R.layout.slide_type_a, container, false);
header_1_a = (WebView) one.findViewById(R.id.header_slide_type_a_1);
preparer.loadHTLMContentHeader(getString(R.string.Historie1_header), header_1_a, font);
image_1_a = (ImageView) one.findViewById(R.id.image_slide_type_a_1);
image_1_a.setImageResource(R.drawable.picture_kap01_01);
text_1_a = (WebView) one.findViewById(R.id.text_slide_type_a_1);
preparer.loadHTLMContentText(getString(R.string.Historie1), text_1_a, font);
View two = layoutInflater.inflate(R.layout.slide_type_c, container, false);
image_1_a = (ImageView) two.findViewById(R.id.image_slide_type_c_1);
image_1_a.setImageResource(R.drawable.boerse_antwerpen);
text_1_a = (WebView) two.findViewById(R.id.text_slide_type_c_1);
preparer.loadHTLMContentText(getString(R.string.Historie2), text_1_a, font);
View three = layoutInflater.inflate(R.layout.slide_type_a, container, false);
header_1_a = (WebView) three.findViewById(R.id.header_slide_type_a_1);
preparer.loadHTLMContentHeader(getString(R.string.Historie3_header), header_1_a, font);
image_1_a = (ImageView) three.findViewById(R.id.image_slide_type_a_1);
image_1_a.setImageResource(R.drawable.parketthandel);
text_1_a = (WebView) three.findViewById(R.id.text_slide_type_a_1);
preparer.loadHTLMContentText(getString(R.string.Historie3), text_1_a, font);
View four = layoutInflater.inflate(R.layout.slide_type_a, container, false);
header_1_a = (WebView) four.findViewById(R.id.header_slide_type_a_1);
preparer.loadHTLMContentHeader(getString(R.string.Historie4_header), header_1_a, font);
image_1_a = (ImageView) four.findViewById(R.id.image_slide_type_a_1);
image_1_a.setImageResource(R.drawable.parketthandel);
text_1_a = (WebView) four.findViewById(R.id.text_slide_type_a_1);
preparer.loadHTLMContentText(getString(R.string.Historie4), text_1_a, font);
View five = layoutInflater.inflate(R.layout.slide_type_b, container, false);
WebView header_1_b = (WebView) five.findViewById(R.id.header_slide_type_b_1);
preparer.loadHTLMContentHeader(getString(R.string.Historie5_header), header_1_b, font);
View layout_1_b = (View) five.findViewById(R.id.layout_slide_type_b_1);
layout_1_b.setBackgroundResource(R.drawable.london_old_stock_exchange);
View six = layoutInflater.inflate(R.layout.slide_type_b, container, false);
header_1_b = (WebView) six.findViewById(R.id.header_slide_type_b_1);
preparer.loadHTLMContentHeader(getString(R.string.Historie6_header), header_1_b, font);
layout_1_b = (View) six.findViewById(R.id.layout_slide_type_b_1);
layout_1_b.setBackgroundResource(R.drawable.frankfurt_old_stock);
View seven = layoutInflater.inflate(R.layout.slide_type_b, container, false);
header_1_b = (WebView) seven.findViewById(R.id.header_slide_type_b_1);
preparer.loadHTLMContentHeader(getString(R.string.Historie7_header), header_1_b, font);
layout_1_b = (View) seven.findViewById(R.id.layout_slide_type_b_1);
layout_1_b.setBackgroundResource(R.drawable.newyork_stock_old);
View eight = layoutInflater.inflate(R.layout.slide_type_b, container, false);
header_1_b = (WebView) eight.findViewById(R.id.header_slide_type_b_1);
preparer.loadHTLMContentHeader(getString(R.string.Historie8_header), header_1_b, font);
layout_1_b = (View) eight.findViewById(R.id.layout_slide_type_b_1);
layout_1_b.setBackgroundResource(R.drawable.tokio_boerse);
View nine = layoutInflater.inflate(R.layout.startquiz_layout, container, false);
View viewarr[] = {one_one, one, two, three, four, five, six, seven, eight, nine};
container.addView(viewarr[position]);
layout.postDelayed(new Runnable() { public void run() { layout.setVisibility(View.GONE);
dotsLayout.setVisibility(View.VISIBLE);} }, 3000);
return viewarr[position];
}
@Override
public int getCount() {
return layouts.length;
}
@Override
public boolean isViewFromObject(View view, Object obj) {
return view == obj;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
View view = (View) object;
container.removeView(view);
}
}
}
如果按下button_01，mainactivity将加载kapitel_01类。