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android仿照qq的顶部栏效果,主要就是利用fragment manager把fragment设置显示内容
(1)在activity_main.xml布局中添加控件
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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"> <LinearLayout android:id="@+id/ll_qqtop" android:layout_width="match_parent" android:layout_height="50dp" android:orientation="horizontal" android:gravity="center" android:background="@color/whites"> <LinearLayout android:id="@+id/common_constact" android:layout_height="40dp" android:layout_width="150dp" android:orientation="horizontal" android:layout_centerHorizontal="true" android:layout_alignParentTop="true"> <Button android:id="@+id/constact_group" android:layout_height="match_parent" android:layout_width="0dp" android:layout_weight="1" android:padding="5dp" android:textSize="16sp" android:button="@null" android:checked="true" android:background="@drawable/qq_contact_group" android:textColor="@drawable/qq_constact_font" android:text="消息"/> <Button android:button="@null" android:id="@+id/constact_all" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:textSize="16sp" android:padding="5dp" android:background="@drawable/qq_contact_all" android:textColor="@drawable/qq_constact_font" android:text="电话"/> </LinearLayout> </LinearLayout> <FrameLayout android:id="@+id/id_content" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@+id/ll_qqtop" /> </RelativeLayout>
(2)在drawable中添加样式文件,包括字体颜色和背景
2.1.在drawable文件夹中新建一个文件:qq_contact_group.xml,这个是左边按钮的背景样式xml
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_enabled="false"><shape> <corners android:bottomLeftRadius="5dp" android:bottomRightRadius="0dp" android:topLeftRadius="5dp" android:topRightRadius="0dp" /> <solid android:color="@color/blue" /> <stroke android:width="1dp" android:color="@color/blue" /> </shape> </item> <item android:state_pressed="true"><shape> <corners android:bottomLeftRadius="5dp" android:bottomRightRadius="0dp" android:topLeftRadius="5dp" android:topRightRadius="0dp" /> <solid android:color="@color/whites" /> <stroke android:width="1dp" android:color="@color/whites" /> </shape> </item> <item><shape> <corners android:bottomLeftRadius="5dp" android:bottomRightRadius="0dp" android:topLeftRadius="5dp" android:topRightRadius="0dp" /> <solid android:color="@color/whites" /> <stroke android:width="1dp" android:color="@color/blue" /> </shape> </item> </selector>
2.2在drawable文件夹中新建一个文件:qq_contact_all.xml,这个是右边按钮的背景样式xml
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_enabled="false"><shape> <corners android:bottomLeftRadius="0dp" android:bottomRightRadius="5dp" android:topLeftRadius="0dp" android:topRightRadius="5dp" /> <solid android:color="@color/blue" /> <stroke android:width="1dp" android:color="@color/blue" /> </shape> </item> <item android:state_pressed="true"><shape> <corners android:bottomLeftRadius="0dp" android:bottomRightRadius="5dp" android:topLeftRadius="0dp" android:topRightRadius="5dp" /> <solid android:color="@color/blue" /> <stroke android:width="1dp" android:color="@color/blue" /> </shape> </item> <item><shape> <corners android:bottomLeftRadius="0dp" android:bottomRightRadius="5dp" android:topLeftRadius="0dp" android:topRightRadius="5dp" /> <solid android:color="@color/whites" /> <stroke android:width="1dp" android:color="@color/blue" /> </shape> </item> </selector>
3.在drawable文件夹中新建一个文件:qq_constact_font.xml,这个是两个按钮的文字样式xml,不选中为白色,选中为蓝色
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android" > <item android:state_pressed="true" android:color="@color/whites"/> <item android:state_enabled="false" android:color="@color/whites"/> <item android:color="@color/blue"/> </selector>
(3)在MainActivity中设置按钮的选中情况,并且在fragmentManager中调用fragment
public class MainActivity extends Activity implements View.OnClickListener { //参考网址:https://blog.csdn.net/u010585448/article/details/48543883 private Button title_left_btn , title_right_btn; /** * Fragment管理器 */ private android.app.FragmentManager mFragmentManager; private FragmentTransaction mTransaction; /** * 两个Fragment */ private LeftFragment mLFragment ; private RightFragment mRFragment; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); } private void initView() { // TODO Auto-generated method stub title_left_btn = (Button)findViewById(R.id.constact_group); title_right_btn = (Button)findViewById(R.id.constact_all); title_left_btn.setOnClickListener(this); title_left_btn.performClick();//模拟点击事件,使左边按钮被点击 mFragmentManager = getFragmentManager(); mTransaction = mFragmentManager.beginTransaction(); mLFragment = new LeftFragment(); mTransaction.replace(R.id.id_content, mLFragment); mTransaction.commit(); title_right_btn.setOnClickListener(this); } @Override public void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.constact_group: if(title_left_btn.isEnabled()){ title_left_btn.setEnabled(false); title_right_btn.setEnabled(true); } mFragmentManager = getFragmentManager(); mTransaction = mFragmentManager.beginTransaction(); if(mLFragment == null){ mLFragment = new LeftFragment(); } mTransaction.replace(R.id.id_content, mLFragment); mTransaction.commit(); break; case R.id.constact_all: if(title_right_btn.isEnabled()){ title_left_btn.setEnabled(true); title_right_btn.setEnabled(false); } mFragmentManager = getFragmentManager(); mTransaction = mFragmentManager.beginTransaction(); if(mRFragment == null){ mRFragment = new RightFragment(); } mTransaction.replace(R.id.id_content, mRFragment); mTransaction.commit(); break; } } }
最后,简单贴一下fragment吧
public class LeftFragment extends android.app.Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflater.inflate(R.layout.left_fragment, container , false); } }
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