第三方实用控件 未完待续

底部导航栏  BottomTabBar
导入依赖  compile 'com.hjm:BottomTabBar:1.1.1'
实现ViewPager 和 Fragment的 联动 主要是一个 初始化方法  在XML 中 可以 定义一些属性.
具体网址::http://blog.csdn.net/qiaoshi96_bk/article/details/73716310


垂直广告轮播 VerticalBannerView
有点特殊的就是需要在总的Build.gradle加一句
 maven {
            url "https://jitpack.io"
        }
    compile 'com.github.Rowandjj:VerticalBannerView:1.0'
具体使用网址:http://blog.csdn.net/Android_Sunshine_Sun/article/details/78318137

倒计时 秒杀 定时器

https://github.com/iwgang/CountdownView/blob/master/README_CN.md

代码很少

视频播放器   第三方的  功能强大

compile 'com.linsea:universalvideoview:1.1.0@aar'

XML代码

<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">    <FrameLayout        android:id="@+id/video_layout"        android:layout_width="fill_parent"        android:layout_height="200dp"        android:background="@android:color/black">        <com.universalvideoview.UniversalVideoView            android:id="@+id/videoView"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            android:layout_gravity="center"            app:uvv_autoRotation="true"            app:uvv_fitXY="false" />        <com.universalvideoview.UniversalMediaController            android:id="@+id/media_controller"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            app:uvv_scalable="true" />    </FrameLayout>    <LinearLayout        android:id="@+id/bottom_layout"        android:layout_width="fill_parent"        android:layout_height="0dp"        android:layout_weight="1"        android:orientation="vertical">        <Button            android:id="@+id/start"            android:layout_margin="5dp"            android:layout_width="fill_parent"            android:layout_height="50dp"            android:gravity="center"            android:text="start" />        <TextView            android:id="@+id/introduction"            android:layout_width="fill_parent"            android:layout_height="0dp"            android:layout_weight="1"            android:gravity="center"            android:text="介绍"            android:background="@color/uvv_gray" />    </LinearLayout></LinearLayout>

MainActivity 代码

public class MainActivity extends AppCompatActivity implements UniversalVideoView.VideoViewCallback{    private static final String TAG = "MainActivity";    private static final String SEEK_POSITION_KEY = "SEEK_POSITION_KEY";    private static final String VIDEO_URL = "http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4";    UniversalVideoView mVideoView;    UniversalMediaController mMediaController;    View mBottomLayout;    View mVideoLayout;    TextView mStart;    private int mSeekPosition;    private int cachedHeight;    private boolean isFullscreen;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mVideoLayout = findViewById(R.id.video_layout);        mBottomLayout = findViewById(R.id.bottom_layout);        mVideoView = (UniversalVideoView) findViewById(R.id.videoView);        mMediaController = (UniversalMediaController) findViewById(R.id.media_controller);        mVideoView.setMediaController(mMediaController);        setVideoAreaSize();        mVideoView.setVideoViewCallback(this);        mStart = (TextView) findViewById(R.id.start);        mStart.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                if (mSeekPosition > 0) {                    mVideoView.seekTo(mSeekPosition);                }                mVideoView.start();                mMediaController.setTitle("Big Buck Bunny");            }        });        mVideoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {            @Override            public void onCompletion(MediaPlayer mp) {                Log.d(TAG, "onCompletion ");            }        });    }    @Override    protected void onPause() {        super.onPause();        Log.d(TAG, "onPause ");        if (mVideoView != null && mVideoView.isPlaying()) {            mSeekPosition = mVideoView.getCurrentPosition();            Log.d(TAG, "onPause mSeekPosition=" + mSeekPosition);            mVideoView.pause();        }    }    /**     * 置视频区域大小     */    private void setVideoAreaSize() {        mVideoLayout.post(new Runnable() {            @Override            public void run() {                int width = mVideoLayout.getWidth();                cachedHeight = (int) (width * 405f / 720f);//                cachedHeight = (int) (width * 3f / 4f);//                cachedHeight = (int) (width * 9f / 16f);                ViewGroup.LayoutParams videoLayoutParams = mVideoLayout.getLayoutParams();                videoLayoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;                videoLayoutParams.height = cachedHeight;                mVideoLayout.setLayoutParams(videoLayoutParams);                mVideoView.setVideoPath(VIDEO_URL);                mVideoView.requestFocus();            }        });    }    @Override    protected void onSaveInstanceState(Bundle outState) {        super.onSaveInstanceState(outState);        Log.d(TAG, "onSaveInstanceState Position=" + mVideoView.getCurrentPosition());        outState.putInt(SEEK_POSITION_KEY, mSeekPosition);    }    @Override    protected void onRestoreInstanceState(Bundle outState) {        super.onRestoreInstanceState(outState);        mSeekPosition = outState.getInt(SEEK_POSITION_KEY);        Log.d(TAG, "onRestoreInstanceState Position=" + mSeekPosition);    }    @Override    public void onScaleChange(boolean isFullscreen) {        this.isFullscreen = isFullscreen;        if (isFullscreen) {            //这句主要是在 切换 大小屏时  换个标题//            mMediaController.setTitle("XXX");            ViewGroup.LayoutParams layoutParams = mVideoLayout.getLayoutParams();            layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;            layoutParams.height = ViewGroup.LayoutParams.MATCH_PARENT;            mVideoLayout.setLayoutParams(layoutParams);            mBottomLayout.setVisibility(View.GONE);        } else {            ViewGroup.LayoutParams layoutParams = mVideoLayout.getLayoutParams();            layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;            layoutParams.height = this.cachedHeight;            mVideoLayout.setLayoutParams(layoutParams);            mBottomLayout.setVisibility(View.VISIBLE);        }        switchTitleBar(!isFullscreen);    }    private void switchTitleBar(boolean show) {        android.support.v7.app.ActionBar supportActionBar = getSupportActionBar();        if (supportActionBar != null) {            if (show) {                supportActionBar.show();            } else {                supportActionBar.hide();            }        }    }    @Override    public void onPause(MediaPlayer mediaPlayer) {        Log.d(TAG, "onPause UniversalVideoView callback");    }    @Override    public void onStart(MediaPlayer mediaPlayer) {        Log.d(TAG, "onStart UniversalVideoView callback");    }    @Override    public void onBufferingStart(MediaPlayer mediaPlayer) {        Log.d(TAG, "onBufferingStart UniversalVideoView callback");    }    @Override    public void onBufferingEnd(MediaPlayer mediaPlayer) {        Log.d(TAG, "onBufferingEnd UniversalVideoView callback");    }    @Override    public void onBackPressed() {        if (this.isFullscreen) {            mVideoView.setFullscreen(false);        } else {            super.onBackPressed();        }    }}