public static void setIndicator(Context context, TabLayout tabs, int leftDip, int rightDip) {
Class<?> tabLayout = tabs.getClass();
Field tabStrip = null;
try {
tabStrip = tabLayout.getDeclaredField("mTabStrip");
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
tabStrip.setAccessible(true);
LinearLayout ll_tab = null;
try {
ll_tab = (LinearLayout) tabStrip.get(tabs);
} catch (IllegalAccessException e) {
e.printStackTrace();
}
int left = (int) (getDisplayMetrics(context).density * leftDip);
int right = (int) (getDisplayMetrics(context).density * rightDip);
for (int i = 0; i < ll_tab.getChildCount(); i++) {
View child = ll_tab.getChildAt(i);
child.setPadding(0, 0, 0, 0);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0, LinearLayout.LayoutParams.MATCH_PARENT, 1);
params.leftMargin = left;
params.rightMargin = right;
child.setLayoutParams(params);
child.invalidate();
}
}
package com.example.donghe.myrefreshview;
import android.app.Activity;
import android.content.Context;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import java.lang.reflect.Field;
public class MainActivity extends AppCompatActivity {
private static int TAB_MARGIN_DIP = 11;
TabLayout tableLayout;
ViewPager viewPager;
RankingPagerAdapter adapter;
String [] strings = {"皇帝","丞相","尚书","太监"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tableLayout = (TabLayout) findViewById(R.id.tabs_ranking);
viewPager = (ViewPager) findViewById(R.id.container_ranking);
adapter = new RankingPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(adapter);
tableLayout.setupWithViewPager(viewPager);
tableLayout.setTabTextColors(getResources().getColor(R.color.black), getResources().getColor(R.color.red_pre));
tableLayout.setTabsFromPagerAdapter(adapter);
setIndicator(this, tableLayout, TAB_MARGIN_DIP, TAB_MARGIN_DIP);
}
private class RankingPagerAdapter extends FragmentStatePagerAdapter {
public RankingPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
return new FuelFragment().newInstance(position, strings[position]);
}
@Override
public int getCount() {
return strings.length;
}
@Override
public CharSequence getPageTitle(int position) {
return strings[position];
}
}
public static void setIndicator(Context context, TabLayout tabs, int leftDip, int rightDip) {
Class<?> tabLayout = tabs.getClass();
Field tabStrip = null;
try {
tabStrip = tabLayout.getDeclaredField("mTabStrip");
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
tabStrip.setAccessible(true);
LinearLayout ll_tab = null;
try {
ll_tab = (LinearLayout) tabStrip.get(tabs);
} catch (IllegalAccessException e) {
e.printStackTrace();
}
int left = (int) (getDisplayMetrics(context).density * leftDip);
int right = (int) (getDisplayMetrics(context).density * rightDip);
for (int i = 0; i < ll_tab.getChildCount(); i++) {
View child = ll_tab.getChildAt(i);
child.setPadding(0, 0, 0, 0);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0, LinearLayout.LayoutParams.MATCH_PARENT, 1);
params.leftMargin = left;
params.rightMargin = right;
child.setLayoutParams(params);
child.invalidate();
}
}
public static DisplayMetrics getDisplayMetrics(Context context) {
DisplayMetrics metric = new DisplayMetrics();
((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(metric);
return metric;
}
public static float getPXfromDP(float value, Context context) {
return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, value,
context.getResources().getDisplayMetrics());
}
}
package com.example.donghe.myrefreshview;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
/**
* Created by dong.he on 2016/12/9.
*/
public class FuelFragment extends Fragment {
public static String TAB_POSITION;
public static String TAB_NAME;
private String tabId;
private int tabPosition;
public FuelFragment() {
}
public static Fragment newInstance(int tabPosition, String tabName) {
FuelFragment fragment = new FuelFragment();
Bundle bundle = new Bundle();
bundle.putInt(TAB_POSITION, tabPosition);
bundle.putString(TAB_NAME, tabName);
fragment.setArguments(bundle);
return fragment;
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.layout, container, false);
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
tabPosition = getArguments().getInt(TAB_POSITION, 0);
tabId = getArguments().getString(TAB_NAME);
((TextView) getView().findViewById(R.id.text)).setText(tabId);
}
}
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <android.support.design.widget.TabLayout android:id="@+id/tabs_ranking" android:layout_width="match_parent" android:layout_height="wrap_content" app:tabGravity="fill" app:tabIndicatorColor="@color/red_pre" app:tabMode="scrollable" /> <android.support.v4.view.ViewPager android:id="@+id/container_ranking" android:layout_width="match_parent" android:layout_height="match_parent" /> </LinearLayout>
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