code perfect

app/src/main/AndroidManifest.xml

@@ -4,7 +4,7 @@
 
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
-
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
     <application
         android:name=".MyApplication"
         android:allowBackup="true"
@@ -13,6 +13,12 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <activity android:name=".view.WindowTest">
+        </activity>
+        <activity android:name=".view.CricleActivity">
+        </activity>
+        <activity android:name=".view.PositionViewActivity">
+        </activity>
         <activity android:name=".view.ScrollViewPagerActivity1">
         </activity>
         <activity android:name=".view.ScrollViewPagerActivity">

app/src/main/java/com/mxdl/faq/MainActivity.java

 package com.mxdl.faq;
 
 import android.Manifest;
+import android.animation.IntEvaluator;
 import android.animation.ObjectAnimator;
+import android.animation.TypeEvaluator;
+import android.animation.ValueAnimator;
 import android.content.Intent;
+import android.graphics.PixelFormat;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.NinePatchDrawable;
 import android.os.Debug;
 import android.os.Environment;
 import android.os.Handler;
 import android.os.Message;
 import android.os.SystemClock;
+import android.support.v4.app.ActivityCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
+import android.support.v7.content.res.AppCompatResources;
 import android.util.Log;
+import android.view.Gravity;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.WindowManager;
+import android.view.animation.Interpolator;
+import android.view.animation.LinearInterpolator;
 import android.widget.Button;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import com.mxdl.faq.view.CricleActivity;
+import com.mxdl.faq.view.PositionViewActivity;
 import com.mxdl.faq.view.ScrollViewPagerActivity;
 import com.mxdl.faq.view.ScrollViewPagerActivity1;
+import com.mxdl.faq.view.WindowTest;
 import com.tbruyelle.rxpermissions2.RxPermissions;
 
 import java.io.File;
@@ -48,6 +63,11 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
     private Button mBtnScroll;
     private Button mBtnScroll1;
     private TextView mTxtHello;
+    private Button mBtnPositon;
+    private Button mBtnCricle;
+    private IntEvaluator mEvaluator = new IntEvaluator();
+    private Button mBtnWindow;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -62,6 +82,9 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
         mTxtHello = findViewById(R.id.txt_hello);
         mBtnScroll = findViewById(R.id.btn_my_scroll);
         mBtnScroll1 = findViewById(R.id.btn_my_scroll1);
+        mBtnPositon = findViewById(R.id.btn_position);
+        mBtnCricle = findViewById(R.id.btn_cricle);
+        mBtnWindow = findViewById(R.id.btn_window);
 
         mBtnStrictMode.setOnClickListener(this);
         mBtnHuGo.setOnClickListener(this);
@@ -70,6 +93,9 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
         mBtnTraceView.setOnClickListener(this);
         mBtnScroll.setOnClickListener(this);
         mBtnScroll1.setOnClickListener(this);
+        mBtnPositon.setOnClickListener(this);
+        mBtnCricle.setOnClickListener(this);
+        mBtnWindow.setOnClickListener(this);
 
         new RxPermissions(this).request(Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE).subscribe(new Consumer<Boolean>() {
             @Override
@@ -79,7 +105,18 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
                 }
             }
         });
-
+//        ValueAnimator valueAnimator = ValueAnimator.ofObject(new TypeEvaluator<Float>() {
+//            @Override
+//            public Float evaluate(float fraction, Float startValue, Float endValue) {
+//                float v = startValue + fraction * (endValue - startValue);
+//                Log.v("MYTAG","v:"+v);
+//                return v;
+//            }
+//        },1f,100f);
+//        valueAnimator.setInterpolator(new LinearInterpolator());
+//        valueAnimator.setDuration(1000 * 5);
+//        valueAnimator.start();
+//        ObjectAnimator.ofFloat(new Object(),"abc",1,2).start();
 
     }
 
@@ -124,6 +161,15 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
             case R.id.btn_my_scroll1:
                 startActivity(new Intent(this, ScrollViewPagerActivity1.class));
                 break;
+            case R.id.btn_position:
+                startActivity(new Intent(this, PositionViewActivity.class));
+                break;
+            case R.id.btn_cricle:
+                startActivity(new Intent(MainActivity.this, CricleActivity.class));
+                break;
+            case R.id.btn_window:
+                startActivity(new Intent(MainActivity.this, WindowTest.class));
+                break;
         }
     }
 
@@ -132,6 +178,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
         Debug.startMethodTracing("custom");
         startTrace();
         Debug.stopMethodTracing();
+
     }
 
     /**

app/src/main/java/com/mxdl/faq/view/CircleView.java

+package com.mxdl.faq.view;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.util.AttributeSet;
+import android.view.View;
+
+/**
+ * Description: <CircleView><br>
+ * Author:      mxdl<br>
+ * Date:        2019/9/25<br>
+ * Version:     V1.0.0<br>
+ * Update:     <br>
+ */
+public class CircleView extends View {
+    private int mColor = Color.RED;
+    private Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+    public CircleView(Context context) {
+        super(context);
+        init();
+    }
+    public CircleView(Context context, AttributeSet attrs) {
+        super(context,attrs);
+        init();
+    }
+    public CircleView(Context context,AttributeSet attrs,int defStyleAttr) {
+        super(context,attrs,defStyleAttr);
+        init();
+    }
+    private void init() {
+        mPaint.setColor(mColor);
+    }
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        int width = getWidth() - getPaddingLeft() - getPaddingRight();
+        int height = getHeight() - getPaddingTop() - getPaddingBottom();
+        int radius = Math.min(width,height) / 2;
+        canvas.drawCircle(getPaddingLeft()+width / 2,getPaddingTop() + height / 2,radius,mPaint);
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+        int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
+        int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
+
+        int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
+        int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);
+
+        if(widthSpecMode == MeasureSpec.AT_MOST && heightSpecMode == MeasureSpec.AT_MOST){
+            setMeasuredDimension(200,200);
+        }else if(widthSpecMode == MeasureSpec.AT_MOST){
+            setMeasuredDimension(200,heightSpecSize);
+        }else if(heightSpecMode == MeasureSpec.AT_MOST){
+            setMeasuredDimension(widthSpecSize,200);
+        }
+    }
+}

app/src/main/java/com/mxdl/faq/view/CricleActivity.java

+package com.mxdl.faq.view;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+import com.mxdl.faq.R;
+
+public class CricleActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_cricle);
+    }
+}

app/src/main/java/com/mxdl/faq/view/FollowText.java

@@ -79,4 +79,9 @@ public class FollowText extends TextView {
         return true;
     }
 
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+
+    }
 }

app/src/main/java/com/mxdl/faq/view/PositionViewActivity.java

+package com.mxdl.faq.view;
+
+import android.animation.ObjectAnimator;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewTreeObserver;
+import android.widget.Button;
+import android.widget.RemoteViews;
+import android.widget.TextView;
+
+import com.mxdl.faq.R;
+
+public class PositionViewActivity extends AppCompatActivity implements View.OnClickListener {
+
+    private TextView mTxtContent;
+    private Button mBtnTest;
+    private Button mBtnMove;
+    private ViewGroup mViewGroup;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_position_view);
+        mTxtContent = findViewById(R.id.btn_content);
+        mBtnTest = findViewById(R.id.btn_test);
+        mBtnMove = findViewById(R.id.btn_move);
+        mBtnTest.setOnClickListener(this);
+        mBtnMove.setOnClickListener(this);
+
+        mTxtContent.post(new Runnable() {
+            @Override
+            public void run() {
+                test();
+            }
+        });
+
+        ViewTreeObserver viewTreeObserver = mTxtContent.getViewTreeObserver();
+        viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+            @Override
+            public void onGlobalLayout() {
+
+            }
+        });
+
+    }
+
+    @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+        super.onWindowFocusChanged(hasFocus);
+        Log.v("MYTAG","onWindowFocusChanged start:"+hasFocus);
+        if(hasFocus){
+            test();
+        }
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()) {
+            case R.id.btn_test:
+                test();
+                break;
+            case R.id.btn_move:
+                ObjectAnimator.ofFloat(mTxtContent,View.TRANSLATION_X,50).setDuration(1000).start();
+                ObjectAnimator.ofFloat(mTxtContent,View.TRANSLATION_Y,100).setDuration(1000).start();
+                break;
+        }
+    }
+
+    private void test() {
+        Log.v("MYTAG", "left:" + mTxtContent.getLeft() + ";top:" + mTxtContent.getTop() + ";right:" + mTxtContent.getRight() + ";bottom:" + mTxtContent.getBottom());
+        Log.v("MYTAG", "x:" + mTxtContent.getX() + ";y:" + mTxtContent.getY());
+        Log.v("MYTAG", "transX:" + mTxtContent.getTranslationX() + ";transY:" + mTxtContent.getTranslationY());
+        Log.v("MYTAG", "========================================");
+    }
+}

app/src/main/java/com/mxdl/faq/view/WindowTest.java

+package com.mxdl.faq.view;
+
+import android.app.IntentService;
+import android.content.Context;
+import android.graphics.PixelFormat;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.Looper;
+import android.os.Message;
+import android.os.MessageQueue;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Gravity;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.Button;
+
+import com.mxdl.faq.R;
+
+public class WindowTest extends AppCompatActivity implements View.OnTouchListener {
+
+    private static final String TAG = "TestActivity";
+
+    private Button mCreateWindowButton;
+
+    private Button mFloatingButton;
+    private WindowManager.LayoutParams mLayoutParams;
+    private WindowManager mWindowManager;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_window_test);
+        initView();
+        HandlerThread thread = new HandlerThread("aaa");
+        thread.start();
+        Handler handler = new Handler(thread.getLooper()){
+            @Override
+            public void handleMessage(Message msg) {
+                super.handleMessage(msg);
+                Log.v("MYTAG","thread:"+Thread.currentThread().getName());
+            }
+        };
+        handler.sendEmptyMessage(1);
+
+
+        IntentService intentService;
+    }
+
+    private void initView() {
+        mCreateWindowButton = (Button) findViewById(R.id.button1);
+        mWindowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
+    }
+
+    public void onButtonClick(View v) {
+        if (v == mCreateWindowButton) {
+            mFloatingButton = new Button(this);
+            mFloatingButton.setText("click me");
+            mLayoutParams = new WindowManager.LayoutParams(WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.WRAP_CONTENT, 0, 0, PixelFormat.RGB_565);
+            mLayoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED;
+            mLayoutParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;
+            mLayoutParams.gravity = Gravity.LEFT | Gravity.TOP;
+            mLayoutParams.x = 100;
+            mLayoutParams.y = 300;
+            mFloatingButton.setOnTouchListener(this);
+            mWindowManager.addView(mFloatingButton, mLayoutParams);
+        }
+    }
+
+    @Override
+    public boolean onTouch(View v, MotionEvent event) {
+        int rawX = (int) event.getRawX();
+        int rawY = (int) event.getRawY();
+        switch (event.getAction()) {
+            case MotionEvent.ACTION_DOWN: {
+                break;
+            }
+            case MotionEvent.ACTION_MOVE: {
+                int x = (int) event.getX();
+                int y = (int) event.getY();
+                mLayoutParams.x = rawX;
+                mLayoutParams.y = rawY;
+                mWindowManager.updateViewLayout(mFloatingButton, mLayoutParams);
+                break;
+            }
+            case MotionEvent.ACTION_UP: {
+                break;
+            }
+            default:
+                break;
+        }
+
+        return false;
+    }
+
+    @Override
+    protected void onDestroy() {
+        try {
+            mWindowManager.removeView(mFloatingButton);
+        } catch (IllegalArgumentException e) {
+            e.printStackTrace();
+        }
+        super.onDestroy();
+    }
+}

app/src/main/res/layout/activity_cricle.xml

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:background="#ffffff"
+              android:orientation="vertical" >
+    <com.mxdl.faq.view.CircleView
+        android:id="@+id/circleView1"
+        android:layout_width="wrap_content"
+        android:layout_height="100dp"
+        android:layout_margin="20dp"
+        android:padding="20dp"
+        android:background="#000000"/>
+</LinearLayout>
\ No newline at end of file

app/src/main/res/layout/activity_main.xml

@@ -59,10 +59,30 @@
         android:text="滑动冲突1"
         android:textAllCaps="true"
         />
+    <Button
+        android:id="@+id/btn_position"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="位置测试"
+        />
+    <Button
+        android:id="@+id/btn_cricle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="自定义View测试"
+        />
+    <Button
+        android:id="@+id/btn_window"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="window测试"
+        />
+
     <TextView
         android:id="@+id/txt_hello"
-        android:layout_width="wrap_content"
+        android:layout_width="200dp"
         android:layout_height="wrap_content"
+        android:gravity="bottom"
         android:text="hello world"
         />
 

app/src/main/res/layout/activity_position_view.xml

+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:orientation="vertical">
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:layout_marginTop="20dp"
+        android:layout_marginLeft="40dp"
+        >
+        <TextView
+            android:id="@+id/btn_content"
+            android:layout_width="100dp"
+            android:layout_height="50dp"
+            android:text="Hello world"
+            android:textColor="#FFFFFF"
+            android:gravity="center"
+            android:background="#000000"
+            android:layout_marginLeft="20dp"
+            android:layout_marginTop="20dp"
+            />
+
+    </LinearLayout>
+    <Button
+        android:id="@+id/btn_test"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="位置测试"
+        android:layout_centerInParent="true"
+        />
+    <Button
+        android:id="@+id/btn_move"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="开始位移"
+        android:layout_below="@+id/btn_test"
+        />
+</RelativeLayout>
\ No newline at end of file

app/src/main/res/layout/activity_window_test.xml

+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:orientation="vertical"
+              android:padding="10px" >
+
+    <Button
+        android:id="@+id/button1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:onClick="onButtonClick"
+        android:text="Button" />
+
+</LinearLayout>
\ No newline at end of file