Debug.java
/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.constraintlayout.motion.widget;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.Resources;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import java.lang.reflect.Field;
import java.nio.CharBuffer;
import static android.view.MotionEvent.ACTION_DOWN;
/**
* Utilities useful for debugging
* @suppress
*/
@SuppressLint("LogConditional")
public class Debug {
/**
* This logs n elements in the stack
*
* @param tag
* @param msg
* @param n
* @suppress
*/
public static void logStack(String tag, String msg, int n) {
StackTraceElement[] st = new Throwable().getStackTrace();
String s = " ";
n = Math.min(n,st.length-1);
for (int i = 1; i <= n; i++) {
StackTraceElement ste = st[i];
String stack = ".("+st[i].getFileName() + ":" + st[i].getLineNumber() + ") "+st[i].getMethodName();
s+=" ";
Log.v(tag, msg+s+stack+ s);
}
}
/**
* This logs n elements in the stack
*
* @param msg
* @param n
* @suppress
*/
public static void printStack(String msg, int n) {
StackTraceElement[] st = new Throwable().getStackTrace();
String s = " ";
n = Math.min(n,st.length-1);
for (int i = 1; i <= n; i++) {
StackTraceElement ste = st[i];
String stack = ".("+st[i].getFileName() + ":" + st[i].getLineNumber() + ") ";
s+=" ";
System.out.println(msg+s+stack+ s);
}
}
/**
* This provides return the name of a view
*
* @param view
* @return name of view
* @suppress
*/
public static String getName(View view) {
try {
Context context = view.getContext();
return context.getResources().getResourceEntryName(view.getId());
} catch (Exception ex) {
return "UNKNOWN";
}
}
public static void dumpPoc(Object obj) {
StackTraceElement s = new Throwable().getStackTrace()[1];
String loc = ".("+s.getFileName()+":"+s.getLineNumber()+")";
Class c = obj.getClass();
System.out.println(loc+"------------- "+c.getName()+" --------------------");
Field[]declaredFields = c.getFields();
for (int i = 0; i < declaredFields.length; i++) {
Field declaredField = declaredFields[i];
try {
Object value = declaredField.get(obj);
if (!declaredField.getName().startsWith("layout_constraint")){
continue;
}
if (value instanceof Integer && value.toString().equals("-1")) {
continue;
}
if (value instanceof Integer && value.toString().equals("0")) {
continue;
}
if (value instanceof Float && value.toString().equals("1.0")) {
continue;
}
if (value instanceof Float && value.toString().equals("0.5")) {
continue;
}
System.out.println(loc+" "+declaredField.getName() +" "+value);
} catch (IllegalAccessException e) {
}
}
System.out.println(loc+"------------- "+c.getSimpleName()+" --------------------");
}
/**
* This returns the name of a view given its id
*
* @param context
* @param id
* @return name of view
* @suppress
*/
public static String getName(Context context, int id) {
try {
if (id != -1) {
return context.getResources().getResourceEntryName(id);
} else {
return "UNKNOWN";
}
} catch (Exception ex) {
return "?"+id;
}
}
/**
* This returns the name of a view given its id
*
* @param context
* @param id
* @return name of view
* @suppress
*/
public static String getName(Context context, int []id) {
try {
String str = id.length+"[";
for (int i = 0; i < id.length; i++) {
str += (i==0)?"":" ";
String tmp = null;
try {
tmp = context.getResources().getResourceEntryName(id[i]);
} catch (Resources.NotFoundException e) {
tmp = "? "+id[i]+" ";
}
str += tmp;
}
return str+"]";
} catch (Exception ex) {
Log.v("DEBUG", ex.toString());
return "UNKNOWN";
}
}
/**
* convert an id number to an id String useful in debugging
*
* @param layout
* @param stateId
* @return
*/
public static String getState(MotionLayout layout, int stateId) {
return getState(layout, stateId,-1);
}
/**
* convert an id number to an id String useful in debugging
*
* @param layout
* @param stateId
* @param len trim if string > len
* @return
*/
public static String getState(MotionLayout layout, int stateId, int len) {
if (stateId == -1) {
return "UNDEFINED";
}
Context context = layout.getContext();
String str = context.getResources().getResourceEntryName(stateId);
if (len != -1) {
if (str.length()> len) {
str = str.replaceAll("([^_])[aeiou]+","$1"); // del vowels ! at start
}
if (str.length()>len) {
int n = str.replaceAll("[^_]","").length(); // count number of "_"
if (n>0){
int extra = (str.length()-len)/n;
String reg = CharBuffer.allocate( extra ).toString().replace( 'eb3b9ed0-f11d-0137-cfb9-0ebaa35b92c0', '.' )+"_";
str = str.replaceAll(reg,"_");
}
}
}
return str;
}
/**
* Convert a motion event action to a string
*
* @param event
* @return
*/
public static String getActionType(MotionEvent event) {
int type = event.getAction();
Field[] fields = MotionEvent.class.getFields();
for (int i = 0; i < fields.length; i++) {
Field field = fields[i];
try {
if (java.lang.reflect.Modifier.isStatic(field.getModifiers())
&& field.getType().equals(Integer.TYPE)
&& field.getInt(null) == type) {
return field.getName() ;
}
} catch (IllegalAccessException e) {
}
}
return "---";
}
/**
* Get file name and location where this method is called.
* Formatting it such that it is clickable by Intellij
* @return (filename:line_no)
*/
public static String getLocation() {
StackTraceElement s = new Throwable().getStackTrace()[1];
return ".("+s.getFileName()+":"+s.getLineNumber()+")";
}
/**
* Get file name and location where this method is called.
* Formatting it such that it is clickable by Intellij
* @return (filename:line_no)
*/
public static String getLoc() {
StackTraceElement s = new Throwable().getStackTrace()[1];
return ".("+s.getFileName()+":"+s.getLineNumber()+") "+s.getMethodName()+"()";
}
/**
* Get file name and location where this method is called.
* Formatting it such that it is clickable by Intellij
* @return (filename:line_no)
*/
public static String getLocation2() {
StackTraceElement s = new Throwable().getStackTrace()[2];
return ".("+s.getFileName()+":"+s.getLineNumber()+")";
}
/**
* Get file name and location where this method is called.
* Formatting it such that it is clickable by Intellij
* @return (filename:line_no)
*/
public static String getCallFrom(int n) {
StackTraceElement s = new Throwable().getStackTrace()[2 + n];
return ".("+s.getFileName()+":"+s.getLineNumber()+")";
}
public static void dumpLayoutParams(ViewGroup layout, String str) {
StackTraceElement s = new Throwable().getStackTrace()[1];
String loc = ".("+s.getFileName()+":"+s.getLineNumber()+") " + str + " ";
int n = layout.getChildCount();
System.out.println(str+" children "+n);
for (int i = 0; i < n; i++) {
View v = layout.getChildAt(i);
System.out.println(loc+" "+getName(v));
ViewGroup.LayoutParams param = v.getLayoutParams();
Field[]declaredFields = param.getClass().getFields();
for (int k = 0; k< declaredFields.length; k++) {
Field declaredField = declaredFields[k];
try {
Object value = declaredField.get(param);
String name = declaredField.getName();
if (!(name.contains("To"))){
continue;
}
if (value.toString().equals("-1")) {
continue;
}
System.out.println(loc+" "+declaredField.getName() +" "+value);
} catch (IllegalAccessException e) {
}
}
}
}
public static void dumpLayoutParams(ViewGroup.LayoutParams param, String str) {
StackTraceElement s = new Throwable().getStackTrace()[1];
String loc = ".("+s.getFileName()+":"+s.getLineNumber()+") " + str + " ";
System.out.println(" >>>>>>>>>>>>>>>>>>. dump "+loc+" "+param.getClass().getName());
Field[]declaredFields = param.getClass().getFields();
for (int k = 0; k< declaredFields.length; k++) {
Field declaredField = declaredFields[k];
try {
Object value = declaredField.get(param);
String name = declaredField.getName();
if (!name.contains("To")){
continue;
}
if (value.toString().equals("-1")) {
continue;
}
// if (value instanceof Integer && value.toString().equals("-1")) {
// continue;
// }
System.out.println(loc+" "+name +" "+value);
} catch (IllegalAccessException e) {
}
}
System.out.println(" <<<<<<<<<<<<<<<<< dump "+loc);
}
}