android 利用FloatActionButton悬浮按钮实现扇形折叠与隐藏
16lz
2021-01-26
android 利用FloatActionButton悬浮按钮实现扇形折叠与隐藏
首先请看效果图：
来看看布局代码：
<?xml version="1.0" encoding="utf-8"?> 因为，我们用floatactionbutton，点击要弹出菜单，弹出的过程和收缩的过程要进行一些动画操作，再此，我将动画封装为工具类。
package com.example.myfloatactionbutton;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.view.animation.Animation;import android.view.animation.AnticipateInterpolator;import android.view.animation.OvershootInterpolator;import android.view.animation.RotateAnimation;import android.view.animation.TranslateAnimation;import android.widget.ImageButton;public class MyAnimations { private static int xOffset = 15; private static int yOffset = -13; public static void initOffset(Context context) { //获取屏幕的密度 context.getResources().getDisplayMetrics().density 设置移动的距离 xOffset = (int) (10 * context.getResources().getDisplayMetrics().density); yOffset = -(int) (8 * context.getResources().getDisplayMetrics().density); } public static Animation getRotateAnimation(float fromDegrees, float toDegrees, int durationMillis) { //旋转，前两个参数设置旋转角度，后四个设置旋转中心 RotateAnimation rotate = new RotateAnimation(fromDegrees, toDegrees, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); //持续时间 rotate.setDuration(durationMillis); //动画结束后，停留在最后一秒 rotate.setFillAfter(true); return rotate; } public static void startAnimationsIn(ViewGroup viewgroup, int durationMillis) { for (int i = 0; i < viewgroup.getChildCount(); i++) { ImageButton inoutimagebutton = (ImageButton) viewgroup .getChildAt(i); //显示图片 inoutimagebutton.setVisibility(View.VISIBLE); ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams) inoutimagebutton .getLayoutParams(); //位移距离 Animation animation = new TranslateAnimation(mlp.rightMargin - xOffset, 0F, yOffset + mlp.bottomMargin, 0F); //动画结束后，停留在最后一帧 animation.setFillAfter(true); //动画持续时间 animation.setDuration(durationMillis); //启动时间 animation.setStartOffset((i * 100) / (-1 + viewgroup.getChildCount())); animation.setInterpolator(new OvershootInterpolator(2F)); //加入动画 inoutimagebutton.startAnimation(animation); } } public static void startAnimationsOut(ViewGroup viewgroup, int durationMillis) { for (int i = 0; i < viewgroup.getChildCount(); i++) { final ImageButton inoutimagebutton = (ImageButton) viewgroup .getChildAt(i); ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams) inoutimagebutton .getLayoutParams(); Animation animation = new TranslateAnimation(0F, mlp.rightMargin - xOffset, 0F, yOffset + mlp.bottomMargin); animation.setFillAfter(true); animation.setDuration(durationMillis); animation.setStartOffset(((viewgroup.getChildCount() - i) * 100) / (-1 + viewgroup.getChildCount())); animation.setInterpolator(new AnticipateInterpolator(2F)); //设置动画监听 animation.setAnimationListener(new Animation.AnimationListener() { @Override public void onAnimationStart(Animation arg0) { } @Override public void onAnimationRepeat(Animation arg0) { } //动画结束后，隐藏imageButton @Override public void onAnimationEnd(Animation arg0) { inoutimagebutton.setVisibility(View.GONE); } }); inoutimagebutton.startAnimation(animation); } } } 来再看看MainActivity代码：
package com.example.myfloatactionbutton;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.ImageButton;import android.widget.ImageView;import android.widget.RelativeLayout;import android.widget.Toast;public class MainActivity extends AppCompatActivity { private ImageButton button_photo; private ImageButton button_people; private ImageButton button_place; private ImageButton button_music; private ImageButton button_thought; private ImageButton button_sleep; private RelativeLayout buttons_wrapper_layout; private ImageView buttons_show_hide_button; private RelativeLayout buttons_show_hide_button_layout; private Boolean isShowing = true; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); ibitSata(); } private void ibitSata() { buttons_show_hide_button_layout.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (!isShowing) { MyAnimations.startAnimationsIn(buttons_wrapper_layout, 300); buttons_show_hide_button .startAnimation(MyAnimations.getRotateAnimation(0, -270, 300)); } else { MyAnimations .startAnimationsOut(buttons_wrapper_layout, 300); buttons_show_hide_button .startAnimation(MyAnimations.getRotateAnimation( -270, 0, 300)); } isShowing = !isShowing; } }); for (int i = 0; i < buttons_wrapper_layout.getChildCount(); i++) { buttons_wrapper_layout.getChildAt(i).setOnClickListener(new OnClickImageButton()); } } private void initView() { button_photo = (ImageButton) findViewById(R.id.button_photo); button_people = (ImageButton) findViewById(R.id.button_people); button_place = (ImageButton) findViewById(R.id.button_place); button_music = (ImageButton) findViewById(R.id.button_music); buttons_wrapper_layout = (RelativeLayout) findViewById(R.id.buttons_wrapper_layout); buttons_show_hide_button = (ImageView) findViewById(R.id.buttons_show_hide_button); buttons_show_hide_button_layout = (RelativeLayout) findViewById(R.id.buttons_show_hide_button_layout); } class OnClickImageButton implements View.OnClickListener { @Override public void onClick(View arg0) { switch (arg0.getId()) { case R.id.button_photo: Toast.makeText(MainActivity.this, "我第一", Toast.LENGTH_SHORT).show(); break; case R.id.button_people: Toast.makeText(MainActivity.this, "我第二", Toast.LENGTH_SHORT).show(); break; case R.id.button_place: Toast.makeText(MainActivity.this, "我第三", Toast.LENGTH_SHORT).show(); break; case R.id.button_music: Toast.makeText(MainActivity.this, "我第四", Toast.LENGTH_SHORT).show(); break; case R.id.button_thought: Toast.makeText(MainActivity.this, "我第五", Toast.LENGTH_SHORT).show(); break; case R.id.button_sleep: Toast.makeText(MainActivity.this, "我第六", Toast.LENGTH_SHORT).show(); break; } } }}更多相关文章
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