1.主佈局文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto" tools:context="com.bxkj.dylan.tablayoutreddot.MainActivity">
<android.support.design.widget.TabLayout android:id="@+id/tabLayout" app:tabBackground="@android:color/white" app:tabTextColor="@color/colorBlack" app:tabSelectedTextColor="@color/colorAccent" app:tabMode="scrollable" android:layout_width="match_parent" android:layout_height="40dp" />
</LinearLayout>
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2.要顯示小紅點的自定義佈局文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="40dp" android:layout_gravity="center" android:orientation="horizontal">
<TextView android:id="@+id/tv_tab_title" android:layout_width="wrap_content" android:layout_height="match_parent" android:gravity="center" android:textColor="@color/colorBlack" android:textSize="15sp" />
<TextView android:id="@+id/iv_tab_red" android:layout_gravity="right" android:layout_width="18dp" android:text="5" android:gravity="center" android:textColor="@android:color/white" android:layout_height="18dp" android:background="@drawable/red_dot" />
</LinearLayout>
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3.設置TabLayout加載的各個Tab
import android.content.res.Resources;
import android.support.design.widget.TabLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private TabLayout tabLayout;
private TextView tv_tab_title;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tabLayout = findViewById(R.id.tabLayout);
initData();
}
private void initData() {
TabLayout.Tab tab = tabLayout.newTab().setText("所有");
tabLayout.addTab(tab);
tab = tabLayout.newTab();
tab.setCustomView(R.layout.tab_wait_for_pay);
tv_tab_title = tab.getCustomView().findViewById(R.id.tv_tab_title);
tv_tab_title.setText("待付款");
tabLayout.addTab(tab);
tab = tabLayout.newTab().setText("待發貨");
tabLayout.addTab(tab);
tab = tabLayout.newTab().setText("待收貨");
tabLayout.addTab(tab);
tab = tabLayout.newTab().setText("已完成");
tabLayout.addTab(tab);
tab = tabLayout.newTab().setText("已取消");
tabLayout.addTab(tab);
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
if (tab.getCustomView() != null) {
tv_tab_title.setTextColor(getResources().getColor(R.color.colorAccent));
}
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
if (tab.getCustomView() != null) {
tv_tab_title.setTextColor(getResources().getColor(R.color.colorBlack));
}
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
}
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