Android alphaanimation \ translateanimation multiple sets of animation loops + flashing after a single animation ends

Animation cycle: the imageview fades in first, waits for the random time, and then fades out. After waiting for the random time, repeat the previous operation.

Imageview IMG = new imageview (this); // create imageviewimg. setimageresource (R. drawable. IMG); // specify the image alphaanimation alphainanim = new alphaanimation (0.0f, 1.0f); // create an animation alphainanim. setduration (1000); // specifies the animation duration alphainanim. getfillafter (true); // specifies whether to fill in the Ending position of the source image after the animation ends to prevent flickering trapalphainanim. setanimationlistener (New animationlistener () // sets the animation listener {@ overridepublic void onanimationstart (animation) {// todo Au To-generated method stub} @ overridepublic void onanimationend (animation) {// todo auto-generated method stublong delay = m_rand.nextlong () % 2000; // random wait time message = new message (); // create a message object message. what = msg_trap_in_anim_end; // sets the message content mhandler. sendmessagedelayed (message, delay); // sends a message and starts the fade-out animation} @ overridepublic void onanimationrepeat (animation) {// todo auto-generated method stub }); Alphaanimation alphaoutanim = new alphaanimation (1.0f, 0.0f); // create a fade-out animation alphaoutanim. setduration (2000); // specifies the animation duration alphaoutanim. getfillafter (true); // specifies whether to fill in the Ending position of the source image after the animation ends to prevent flashing alphaoutanim. listener (New animationlistener () // sets the animation listener {@ overridepublic void onanimationstart (animation) {// todo auto-generated method stub} @ overridepublic void onanimationend (animation) {// todo Auto-generated method stublong delay = m_rand.nextlong () % 2000; // random wait time message = new message (); // create a message object message. what = msg_trap_out_anim_end; // sets the message content mhandler. sendmessagedelayed (message, delay); // sends a message and starts the fade-in animation} @ overridepublic void onanimationrepeat (animation) {// todo auto-generated method stub}); IMG. startanimation (alphainanim); // start the fade-in animation public final static int msg_trap_in_anim_en D = 9; // message: Public final static int msg_trap_out_anim_end = msg_trap_in_anim_end + 1 after the animation fades out; // message: Private handler mhandler = new handler () after the animation ends () {public void handlemessage (Message MSG) {Switch (MSG. what) {Case msg_trap_in_anim_end: {If (alphaoutanim! = NULL & m_trapimg! = NULL) {alphaoutanim. Reset (); IMG. startanimation (alphaoutanim);} break;} case msg_trap_out_anim_end: {If (alphainanim! = NULL & m_trapimg! = NULL) {alphainanim. Reset (); IMG. startanimation (alphainanim) ;}break ;}super. handlemessage (MSG );}};

The above is an infinite loop combination animation.

Flash protection:

Alphainanim. getfillafter (true); // specifies whether to use the source image to fill in the Ending position after the animation ends to prevent flashing.

For more information, see the getfillafter function.

Reference: (the first three items)

Http://fujian0910.blog.51cto.com/1706151/751552

Http://hi.baidu.com/j_fo/blog/item/66b2700e1cfcedea7bcbe1a4.html

Http://jakend.iteye.com/blog/1150065

Http://www.cnblogs.com/feisky/archive/2010/01/11/1644482.html

Http://topic.csdn.net/u/20110210/10/b6850b89-65eb-4669-bd3e-95b10fc184cc.html

Http://topic.csdn.net/u/20120305/14/badd9a4c-fe23-486b-9582-362e2f180db9.html

Http://lovehong0306.iteye.com/blog/1511089

Http://blog.csdn.net/hellogv/article/details/6264706