简单的倒计时+缩放动画

简单粗暴 直接上代码

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

/**
 * Hello World!〉
 */
private TextView mTv;
private ImageView mPic;
private double mTime = 5;
private Handler handler = new Handler();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initView();
    initAnmitionDAta();
    initData();
}

private void initData() {
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
            if(mTime ==0) {
                Intent intent = new Intent(MainActivity.this, Main2Activity.class);
                startActivity(intent);
                finish();
            }else {
                mTime--;
                mTv.setText("倒计时："+ mTime);
                initData();
            }
        }
    },1000);
}

private void initAnmitionDAta() {

    ScaleAnimation scaleAnimation = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f);
    scaleAnimation.setDuration(4000);
    mPic.setAnimation(scaleAnimation);
}

private void initView() {
    mPic = (ImageView) findViewById(R.id.pic);
    mTv = (TextView) findViewById(R.id.tv);
    mTv.setOnClickListener(this);

}


@Override
public void onClick(View v) {
    switch (v.getId()) {
        default:
            break;
        case R.id.tv:
            startActivity(new Intent(this,Main2Activity.class));
            break;
    }
}

}

布局代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:orientation="vertical">

  <TextView
    android:id="@+id/tv"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Hello World!〉"
    android:maxLines="1"
    android:ellipsize="end"
    android:drawableRight="@mipmap/ic_launcher"
     />

  <ImageView
    android:id="@+id/pic"
    android:layout_width="160dp"
    android:layout_height="160dp"
    android:src="@mipmap/ic_launcher"/>
</LinearLayout>