一个常见的一个Dialog动画旋转效果

在我们进行一个网络访问的过程的时候,我们需要大概1到2秒钟的等待,所以我们给它一个动画效果,当网络访问成功的时候动画随之结束,给用户一个良好的体验效果.写了一个简单的Demo具体代码如下:

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    private Button mBt;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mBt = (Button) findViewById(bt1);
        mBt.setOnClickListener(this);
    }
    @Override
    public void onClick(View v) {
    switch (v.getId()){
        case R.id.bt1:
            Animal_Custom animal_custom = new Animal_Custom(this,null);
            animal_custom.show();
            startActivity(new Intent(MainActivity.this,TwoActivity.class));

    }
    }
}

在跳转第二个页面的时候之前先出现一个动画效果,然后再跳转,以为Intent跳转非常快,所以显示效果不太明显,主要还是用于网络访问的操作等待时间时使用的效果

public class Animal_Custom extends Dialog {
    private String data_text;
    private Context mContext;
    private ImageView mIv_show;
    private RelativeLayout mRl_ahow;

    public Animal_Custom(Context context, String text) {
        super(context);
        this.data_text = text;
        this.mContext = context;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.animal_layout);
        initView();
    }

    private void initView() {
        mIv_show = (ImageView) findViewById(R.id.iv_show);
        mRl_ahow = (RelativeLayout) findViewById(R.id.rl_show);
        mIv_show.setBackgroundResource(R.drawable.Animal_Scale);
        AnimationDrawable background = (AnimationDrawable) mIv_show.getBackground();
        background.start();
        ScaleAnimation scaleAnimation = new ScaleAnimation(1.0f, 1.0f,
                0.0f, 1.0f, Animation.RELATIVE_TO_SELF,
                0.5f, Animation.RELATIVE_TO_SELF,
                0.5f);
        scaleAnimation.setDuration(200);
        mRl_ahow.startAnimation(scaleAnimation);
        Window window = this.getWindow();
        WindowManager.LayoutParams params = this.getWindow().getAttributes();
        window.setBackgroundDrawable(new BitmapDrawable());
        //设置dialog的对话框透明程度背景
        params.dimAmount = 0.5f;
        window.setAttributes(params);
        //点击以外的区域会不消失
        setCancelable(false);
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {

        if (keyCode == KeyEvent.KEYCODE_BACK) {
            Animal_Custom.this.dismiss();
            return false;
        }else {
        return super.onKeyDown(keyCode, event);
    }
}
}

这是 Animal_Scale:

<animation-list xmlns:android="http://schemas.android.com/apk/res/android">

    <item
    android:drawable="@mipmap/r1"
    android:duration="50" />
    <item
        android:drawable="@mipmap/r2"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r3"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r4"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r5"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r6"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r7"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r8"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r9"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r10"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r11"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r12"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r13"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r14"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r15"
        android:duration="50" />
    <item
        android:drawable="@mipmap/r16"
        android:duration="50" />
animation-list>

这样就会出现一个旋转的图案了.