Android Display gif animated pictures

Item (showgif) has been pushed to GitHub, see the link at the end of the article to download.

Displays a GIF animated image as follows:

Look at the effect in the demo:

button to pause and resume. Take a look at the Code logic implementation:

Package Com.zms.showgif;import Android.support.v7.app.actionbaractivity;import Android.os.bundle;import Android.view.menu;import Android.view.menuitem;import Android.view.view;import Android.widget.Button;public class    Main extends Actionbaractivity {private Gifimageview gifimageview;    Private Button Btnpause;        @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);        Setcontentview (R.layout.main);        Gifimageview = (Gifimageview) Findviewbyid (r.id.imggif);        Gifimageview.setmovieresource (R.RAW.SHOWME);        Btnpause = (Button) Findviewbyid (r.id.btnpause);    Btnpause.setonclicklistener (New Onclicklistenerimp ()); } Private class Onclicklistenerimp implements View.onclicklistener {@Override public void OnClick (View V {if (v = = btnpause) {if (gifimageview.ispaused ()) {Gifimageview.setpause                    D (FALSE); Btnpause.settext ("Pause");                    } else {gifimageview.setpaused (true);                Btnpause.settext ("Play"); }}}} @Override public boolean Oncreateoptionsmenu (Menu menu) {Getmenuinflater (). infl        Ate (R.menu.main, menu);    return true;        } @Override public boolean onoptionsitemselected (MenuItem item) {int id = item.getitemid ();        if (id = = r.id.action_settings) {return true;    } return super.onoptionsitemselected (item); }}

The core of the custom view:

Package Com.zms.showgif;import Android.content.context;import Android.content.res.typedarray;import Android.graphics.canvas;import Android.graphics.movie;import Android.os.build;import Android.util.AttributeSet; Import android.view.view;/** * Created by Alexzhou on 2015/1/29.    * 16:42 */public class Gifimageview extends View {//default is 1 seconds private static final int default_movie_duration = 1000;    private int Mmovieresourceid;    Private Movie Mmovie;    Private long Mmoviestart;    private int mcurrentanimationtime = 0;    private float Mleft;    private float mtop;    private float Mscale;    private int mmeasuredmoviewidth;    private int mmeasuredmovieheight;    Private Boolean mvisible = true;    Private volatile Boolean mpaused = false;    Public Gifimageview (Context context) {This (context, NULL);    } public Gifimageview (context context, AttributeSet Attrs) {This (context, attrs, R.styleable.gif_style); } public Gifimageview (context context, AttributeSetattrs, int defstyle) {Super (context, attrs, Defstyle);    Setviewattributes (context, attrs, Defstyle);         } private void Setviewattributes (context context, AttributeSet attrs, int defstyle) { if (Build.VERSION.SDK_INT >= build.version_codes.        Honeycomb) {setlayertype (view.layer_type_software, NULL);                }//Read the value of GIF from the description file, create a movie instance final TypedArray array = context.obtainstyledattributes (Attrs,        R.styleable.gif, Defstyle,-1);        Mmovieresourceid = Array.getresourceid (R.styleable.gif_resource,-1);        mpaused = Array.getboolean (r.styleable.gif_paused, false);        Array.recycle (); if (Mmovieresourceid! =-1) {Mmovie = Movie.decodestream (Getresources (). Openrawresource (MM        Ovieresourceid));        }} public int setmovieresource (int movieresid) {This.mmovieresourceid = Movieresid; Mmovie = Movie.decodestream (Getresources (). Openrawresource (Mmovieresourceid));        Requestlayout ();    return movieresid;        } public void Setmovie (movie movie) {This.mmovie = movie;    Requestlayout ();    } public Movie Getmovie () {return mmovie;        } public void Setmovietime (int time) {mcurrentanimationtime = time;    Invalidate (); }/** * Set pause * * @param paused */public void setpaused (Boolean paused) {this.mpaused = Paus        Ed        if (!paused) {Mmoviestart = Android.os.SystemClock.uptimeMillis ()-mcurrentanimationtime;    } invalidate ();    }/** * Determine if the GIF is stopped * * @return */public boolean ispaused () {return this.mpaused;            } @Override protected void onmeasure (int widthmeasurespec, int heightmeasurespec) {if (Mmovie! = null) {            int moviewidth = Mmovie.width ();            int movieheight = Mmovie.height (); int Maximumwidth = measurespec.getsize (Widthmeasurespec);            float Scalew = (float) moviewidth/(float) maximumwidth;            Mscale = 1f/scalew;            Mmeasuredmoviewidth = MaximumWidth;            Mmeasuredmovieheight = (int) (movieheight * mscale);        Setmeasureddimension (Mmeasuredmoviewidth, mmeasuredmovieheight);        } else {setmeasureddimension (Getsuggestedminimumwidth (), Getsuggestedminimumheight ()); }} @Override protected void OnLayout (Boolean changed, int l, int t, int r, int b) {super.onlayout (ch        Anged, L, T, R, b);        Mleft = (getwidth ()-mmeasuredmoviewidth)/2f;        Mtop = (getheight ()-mmeasuredmovieheight)/2f;    mvisible = getvisibility () = = view.visible;                } @Override protected void OnDraw (canvas canvas) {if (Mmovie! = null) {if (!mpaused) {                Updateanimationtime ();                Drawmovieframe (canvas);         Invalidateview ();   } else {drawmovieframe (canvas); }}} private void Invalidateview () {if (mvisible) {if (Build.VERSION.SDK_INT >= Build . Version_codes.            Jelly_bean) {postinvalidateonanimation ();            } else {invalidate ();        }}} private void Updateanimationtime () {Long now = Android.os.SystemClock.uptimeMillis ();        If first frame, record start time if (Mmoviestart = = 0) {Mmoviestart = now;        }//Take out the length of the animation int dur = Mmovie.duration ();        if (dur = = 0) {dur = default_movie_duration;    }//calculates the need to display the first few frames mcurrentanimationtime = (int) ((now-mmoviestart)% dur);        The private void Drawmovieframe (canvas canvas) {//sets the frame to be displayed and draws Mmovie.settime (Mcurrentanimationtime);        Canvas.save (Canvas.matrix_save_flag);        Canvas.scale (Mscale, Mscale);  Mmovie.draw (Canvas, Mleft/mscale, Mtop/mscale);      Canvas.restore ();        } @Override public void onscreenstatechanged (int screenstate) {super.onscreenstatechanged (screenstate);        mvisible = Screenstate = = screen_state_on;    Invalidateview (); } @Override protected void onvisibilitychanged (View changedview, int visibility) {super.onvisibilitychanged (        Changedview, visibility);        mvisible = visibility = = view.visible;    Invalidateview (); } @Override protected void onwindowvisibilitychanged (int visibility) {super.onwindowvisibilitychanged (Visibi        lity);        mvisible = visibility = = view.visible;    Invalidateview (); }}

Reprint Please specify source: Zhou Mushi's csdn blog Http://blog.csdn.net/zhoumushui

My github: Zhou Mushi's GitHub Https://github.com/zhoumushui

Android Display gif animated pictures